From 12183a20a8baf009bf570ab3db45a27fd6b1fd03 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Wed, 21 Dec 2011 23:01:20 +0100 Subject: mtd: nand: fix typo in comment Funny one :) "Heck" fits somehow, too, but I am sure it was meant to be "Check". Signed-off-by: Wolfram Sang Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- drivers/mtd/nand/nand_base.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 35b4565050f1..8a393f9e6027 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -2588,7 +2588,7 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr, instr->state = MTD_ERASING; while (len) { - /* Heck if we have a bad block, we do not erase bad blocks! */ + /* Check if we have a bad block, we do not erase bad blocks! */ if (nand_block_checkbad(mtd, ((loff_t) page) << chip->page_shift, 0, allowbbt)) { pr_warn("%s: attempt to erase a bad block at page 0x%08x\n", -- cgit v1.2.3 From 9398d1ce09b9009996f7d2468e1d3c785fa6feda Mon Sep 17 00:00:00 2001 From: Huang Shijie Date: Wed, 4 Jan 2012 11:18:46 +0800 Subject: mtd: gpmi-nand bugfix: reset the BCH module when it is not MX23 In MX28, if we do not reset the BCH module. The BCH module may becomes unstable when the board reboots for several thousands times. This bug has been catched in customer's production. The patch adds some comments (some from Wolfram Sang), and fixes it now. Also change gpmi_reset_block() to static. Signed-off-by: Huang Shijie Acked-by: Marek Vasut Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse Cc: stable@kernel.org [3.1+] --- drivers/mtd/nand/gpmi-nand/gpmi-lib.c | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c index 2a56fc6f399a..c56f8e021b90 100644 --- a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c +++ b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c @@ -69,17 +69,19 @@ static int clear_poll_bit(void __iomem *addr, u32 mask) * [1] enable the module. * [2] reset the module. * - * In most of the cases, it's ok. But there is a hardware bug in the BCH block. + * In most of the cases, it's ok. + * But in MX23, there is a hardware bug in the BCH block (see erratum #2847). * If you try to soft reset the BCH block, it becomes unusable until * the next hard reset. This case occurs in the NAND boot mode. When the board * boots by NAND, the ROM of the chip will initialize the BCH blocks itself. * So If the driver tries to reset the BCH again, the BCH will not work anymore. - * You will see a DMA timeout in this case. + * You will see a DMA timeout in this case. The bug has been fixed + * in the following chips, such as MX28. * * To avoid this bug, just add a new parameter `just_enable` for * the mxs_reset_block(), and rewrite it here. */ -int gpmi_reset_block(void __iomem *reset_addr, bool just_enable) +static int gpmi_reset_block(void __iomem *reset_addr, bool just_enable) { int ret; int timeout = 0x400; @@ -206,7 +208,15 @@ int bch_set_geometry(struct gpmi_nand_data *this) if (ret) goto err_out; - ret = gpmi_reset_block(r->bch_regs, true); + /* + * Due to erratum #2847 of the MX23, the BCH cannot be soft reset on this + * chip, otherwise it will lock up. So we skip resetting BCH on the MX23. + * On the other hand, the MX28 needs the reset, because one case has been + * seen where the BCH produced ECC errors constantly after 10000 + * consecutive reboots. The latter case has not been seen on the MX23 yet, + * still we don't know if it could happen there as well. + */ + ret = gpmi_reset_block(r->bch_regs, GPMI_IS_MX23(this)); if (ret) goto err_out; -- cgit v1.2.3 From bce41d601e58af12cee1398fe836e6b9a8fb5396 Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Tue, 10 Jan 2012 15:32:29 +0200 Subject: jffs2: do not initialize variable unnecessarily Remove unnecessary initializer for a local variable. Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- fs/jffs2/erase.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/jffs2/erase.c b/fs/jffs2/erase.c index a01cdad6aad1..eafb8d37a6fb 100644 --- a/fs/jffs2/erase.c +++ b/fs/jffs2/erase.c @@ -335,7 +335,7 @@ static int jffs2_block_check_erase(struct jffs2_sb_info *c, struct jffs2_erasebl void *ebuf; uint32_t ofs; size_t retlen; - int ret = -EIO; + int ret; unsigned long *wordebuf; ret = mtd_point(c->mtd, jeb->offset, c->sector_size, &retlen, -- cgit v1.2.3 From 48cfe37cc03f616e6c139796962e7ec677cde8a9 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 21 Dec 2011 14:20:23 -0500 Subject: target: don't allocate bio headroom in iblock We never embedd the bio into a structure, so there is no need to allocate 64 bytes of headroom per bio. Signed-off-by: Christoph Hellwig Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_iblock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c index cc8e6b58ef20..628e877381d8 100644 --- a/drivers/target/target_core_iblock.c +++ b/drivers/target/target_core_iblock.c @@ -129,7 +129,7 @@ static struct se_device *iblock_create_virtdevice( /* * These settings need to be made tunable.. */ - ib_dev->ibd_bio_set = bioset_create(32, 64); + ib_dev->ibd_bio_set = bioset_create(32, 0); if (!ib_dev->ibd_bio_set) { pr_err("IBLOCK: Unable to create bioset()\n"); return ERR_PTR(-ENOMEM); -- cgit v1.2.3 From 9e08e34e3735ae057eb3834da3570995811b7eb9 Mon Sep 17 00:00:00 2001 From: Marco Sanvido Date: Tue, 3 Jan 2012 17:12:57 -0800 Subject: target: Use correct preempted registration sense code The comments quote the right parts of the spec: * d) Establish a unit attention condition for the * initiator port associated with every I_T nexus * that lost its registration other than the I_T * nexus on which the PERSISTENT RESERVE OUT command * was received, with the additional sense code set * to REGISTRATIONS PREEMPTED. and * e) Establish a unit attention condition for the initiator * port associated with every I_T nexus that lost its * persistent reservation and/or registration, with the * additional sense code set to REGISTRATIONS PREEMPTED; but the actual code accidentally uses ASCQ_2AH_RESERVATIONS_PREEMPTED instead of ASCQ_2AH_REGISTRATIONS_PREEMPTED. Fix this. Signed-off-by: Marco Sanvido Signed-off-by: Roland Dreier Cc: Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_pr.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c index 429ad7291664..d14860ff2508 100644 --- a/drivers/target/target_core_pr.c +++ b/drivers/target/target_core_pr.c @@ -3120,7 +3120,7 @@ static int core_scsi3_pro_preempt( if (!calling_it_nexus) core_scsi3_ua_allocate(pr_reg_nacl, pr_res_mapped_lun, 0x2A, - ASCQ_2AH_RESERVATIONS_PREEMPTED); + ASCQ_2AH_REGISTRATIONS_PREEMPTED); } spin_unlock(&pr_tmpl->registration_lock); /* @@ -3233,7 +3233,7 @@ static int core_scsi3_pro_preempt( * additional sense code set to REGISTRATIONS PREEMPTED; */ core_scsi3_ua_allocate(pr_reg_nacl, pr_res_mapped_lun, 0x2A, - ASCQ_2AH_RESERVATIONS_PREEMPTED); + ASCQ_2AH_REGISTRATIONS_PREEMPTED); } spin_unlock(&pr_tmpl->registration_lock); /* -- cgit v1.2.3 From 6816966a8418b980481b4dced7eddd1796b145e8 Mon Sep 17 00:00:00 2001 From: Marco Sanvido Date: Tue, 3 Jan 2012 17:12:58 -0800 Subject: target: Allow PERSISTENT RESERVE IN for non-reservation holder Initiators that aren't the active reservation holder should be able to do a PERSISTENT RESERVE IN command in all cases, so add it to the list of allowed CDBs in core_scsi3_pr_seq_non_holder(). Signed-off-by: Marco Sanvido Signed-off-by: Roland Dreier Cc: Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_pr.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c index d14860ff2508..68c71cd7a88e 100644 --- a/drivers/target/target_core_pr.c +++ b/drivers/target/target_core_pr.c @@ -478,6 +478,7 @@ static int core_scsi3_pr_seq_non_holder( case READ_MEDIA_SERIAL_NUMBER: case REPORT_LUNS: case REQUEST_SENSE: + case PERSISTENT_RESERVE_IN: ret = 0; /*/ Allowed CDBs */ break; default: -- cgit v1.2.3 From 9db9da332250dbe662995703a4dcdd692112f0c3 Mon Sep 17 00:00:00 2001 From: "roland@purestorage.com" Date: Wed, 4 Jan 2012 15:59:58 -0800 Subject: target: Don't zero pages used for data buffers Doing alloc_page(GFP_KERNEL | __GFP_ZERO) to get pages used for data buffers wastes a lot of CPU clearing pages that will be quickly be overwritten by the actual data. However, for emulated control commands such as INQUIRY and so on, the code does assume that the buffer is zeroed. To avoid this CPU overhead, skip the __GFP_ZERO for commands that are actually moving data, ie cmds that have SCF_SCSI_DATA_SG_IO_CDB set. Signed-off-by: Roland Dreier Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_transport.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index d3ddd1361949..289bc0f125f9 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -3516,6 +3516,7 @@ transport_generic_get_mem(struct se_cmd *cmd) u32 length = cmd->data_length; unsigned int nents; struct page *page; + gfp_t zero_flag; int i = 0; nents = DIV_ROUND_UP(length, PAGE_SIZE); @@ -3526,9 +3527,11 @@ transport_generic_get_mem(struct se_cmd *cmd) cmd->t_data_nents = nents; sg_init_table(cmd->t_data_sg, nents); + zero_flag = cmd->se_cmd_flags & SCF_SCSI_DATA_SG_IO_CDB ? 0 : __GFP_ZERO; + while (length) { u32 page_len = min_t(u32, length, PAGE_SIZE); - page = alloc_page(GFP_KERNEL | __GFP_ZERO); + page = alloc_page(GFP_KERNEL | zero_flag); if (!page) goto out; -- cgit v1.2.3 From 9fbc8909876a2160044e71d376848973b9bfdc3f Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Mon, 9 Jan 2012 17:54:00 -0800 Subject: target: Correct sense key for INVALID FIELD IN {PARAMETER LIST,CDB} According to SPC-4, the sense key for commands that are failed with INVALID FIELD IN PARAMETER LIST and INVALID FIELD IN CDB should be ILLEGAL REQUEST (5h) rather than ABORTED COMMAND (Bh). Without this patch, a tcm_loop LUN incorrectly gives: # sg_raw -r 1 -v /dev/sda 3 1 0 0 ff 0 Sense Information: Fixed format, current; Sense key: Aborted Command Additional sense: Invalid field in cdb Raw sense data (in hex): 70 00 0b 00 00 00 00 0a 00 00 00 00 24 00 00 00 00 00 While a real SCSI disk gives: Sense Information: Fixed format, current; Sense key: Illegal Request Additional sense: Invalid field in cdb Raw sense data (in hex): 70 00 05 00 00 00 00 18 00 00 00 00 24 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 with the main point being that the real disk gives a sense key of ILLEGAL REQUEST (5h). Signed-off-by: Roland Dreier Cc: Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_transport.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 289bc0f125f9..2869fb7d2c05 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -4451,8 +4451,8 @@ int transport_send_check_condition_and_sense( /* CURRENT ERROR */ buffer[offset] = 0x70; buffer[offset+SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* ABORTED COMMAND */ - buffer[offset+SPC_SENSE_KEY_OFFSET] = ABORTED_COMMAND; + /* ILLEGAL REQUEST */ + buffer[offset+SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST; /* INVALID FIELD IN CDB */ buffer[offset+SPC_ASC_KEY_OFFSET] = 0x24; break; @@ -4460,8 +4460,8 @@ int transport_send_check_condition_and_sense( /* CURRENT ERROR */ buffer[offset] = 0x70; buffer[offset+SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* ABORTED COMMAND */ - buffer[offset+SPC_SENSE_KEY_OFFSET] = ABORTED_COMMAND; + /* ILLEGAL REQUEST */ + buffer[offset+SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST; /* INVALID FIELD IN PARAMETER LIST */ buffer[offset+SPC_ASC_KEY_OFFSET] = 0x26; break; -- cgit v1.2.3 From 91ec1d3535b2acf12c599045cc19ad9be3c6a47b Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Fri, 13 Jan 2012 12:01:34 -0800 Subject: target: Add workaround for zero-length control CDB handling This patch adds a work-around for handling zero allocation length control CDBs (type SCF_SCSI_CONTROL_SG_IO_CDB) that was causing an OOPs with the following raw calls: # sg_raw -v /dev/sdd 3 0 0 0 0 0 # sg_raw -v /dev/sdd 0x1a 0 1 0 0 0 This patch will follow existing zero-length handling for data I/O and silently return with GOOD status. This addresses the zero length issue, but the proper long-term resolution for handling arbitary allocation lengths will be to refactor out data-phase handling in individual CDB emulation logic within target_core_cdb.c Reported-by: Roland Dreier Cc: Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_transport.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 2869fb7d2c05..50d6911d4120 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -3759,6 +3759,11 @@ transport_allocate_control_task(struct se_cmd *cmd) struct se_task *task; unsigned long flags; + /* Workaround for handling zero-length control CDBs */ + if ((cmd->se_cmd_flags & SCF_SCSI_CONTROL_SG_IO_CDB) && + !cmd->data_length) + return 0; + task = transport_generic_get_task(cmd, cmd->data_direction); if (!task) return -ENOMEM; @@ -3830,6 +3835,14 @@ int transport_generic_new_cmd(struct se_cmd *cmd) else if (!task_cdbs && (cmd->se_cmd_flags & SCF_SCSI_DATA_SG_IO_CDB)) { cmd->t_state = TRANSPORT_COMPLETE; atomic_set(&cmd->t_transport_active, 1); + + if (cmd->t_task_cdb[0] == REQUEST_SENSE) { + u8 ua_asc = 0, ua_ascq = 0; + + core_scsi3_ua_clear_for_request_sense(cmd, + &ua_asc, &ua_ascq); + } + INIT_WORK(&cmd->work, target_complete_ok_work); queue_work(target_completion_wq, &cmd->work); return 0; -- cgit v1.2.3 From e59a41b69a8e116d5ac8c95c4222f5a971f66bbd Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Tue, 10 Jan 2012 14:16:57 +0100 Subject: target: avoid multiple outputs in scsi_dump_inquiry() The multiple calls to pr_debug() each with one letter results in a new line. This patch merges the multiple requests into one call per line so we don't have the multiple line cuts. Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_transport.c | 24 +++++++++++++----------- 1 file changed, 13 insertions(+), 11 deletions(-) diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 50d6911d4120..e186f7db3860 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -1255,32 +1255,34 @@ static void core_setup_task_attr_emulation(struct se_device *dev) static void scsi_dump_inquiry(struct se_device *dev) { struct t10_wwn *wwn = &dev->se_sub_dev->t10_wwn; + char buf[17]; int i, device_type; /* * Print Linux/SCSI style INQUIRY formatting to the kernel ring buffer */ - pr_debug(" Vendor: "); for (i = 0; i < 8; i++) if (wwn->vendor[i] >= 0x20) - pr_debug("%c", wwn->vendor[i]); + buf[i] = wwn->vendor[i]; else - pr_debug(" "); + buf[i] = ' '; + buf[i] = '\0'; + pr_debug(" Vendor: %s\n", buf); - pr_debug(" Model: "); for (i = 0; i < 16; i++) if (wwn->model[i] >= 0x20) - pr_debug("%c", wwn->model[i]); + buf[i] = wwn->model[i]; else - pr_debug(" "); + buf[i] = ' '; + buf[i] = '\0'; + pr_debug(" Model: %s\n", buf); - pr_debug(" Revision: "); for (i = 0; i < 4; i++) if (wwn->revision[i] >= 0x20) - pr_debug("%c", wwn->revision[i]); + buf[i] = wwn->revision[i]; else - pr_debug(" "); - - pr_debug("\n"); + buf[i] = ' '; + buf[i] = '\0'; + pr_debug(" Revision: %s\n", buf); device_type = dev->transport->get_device_type(dev); pr_debug(" Type: %s ", scsi_device_type(device_type)); -- cgit v1.2.3 From 1dd0a0674530da61cdbfadd88c96949b483a7c19 Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Tue, 10 Jan 2012 14:16:58 +0100 Subject: target: use save/restore lock primitive in core_dec_lacl_count() It may happen that uasp will free the request in irq conntext, the callchain: uasp_cmd_release() -> transport_generic_free_cmd() -> core_dec_lacl_count() where the last function enables the IRQ. Those irqs are re-disabled later (due to the spin.*irq_restore) but in between we could get hurt. Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_device.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c index 0c5992f0d946..00159a4e781f 100644 --- a/drivers/target/target_core_device.c +++ b/drivers/target/target_core_device.c @@ -320,11 +320,12 @@ int core_free_device_list_for_node( void core_dec_lacl_count(struct se_node_acl *se_nacl, struct se_cmd *se_cmd) { struct se_dev_entry *deve; + unsigned long flags; - spin_lock_irq(&se_nacl->device_list_lock); + spin_lock_irqsave(&se_nacl->device_list_lock, flags); deve = &se_nacl->device_list[se_cmd->orig_fe_lun]; deve->deve_cmds--; - spin_unlock_irq(&se_nacl->device_list_lock); + spin_unlock_irqrestore(&se_nacl->device_list_lock, flags); } void core_update_device_list_access( -- cgit v1.2.3 From 8d9efe539cf78f6a90947d47100e4a86d907750f Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Wed, 11 Jan 2012 21:43:38 +0100 Subject: target: fix return code of core_tpg_.*_lun - core_tpg_pre_addlun() returns always ERR_PTR() or the pointer, never NULL. The additional check for NULL in core_dev_add_lun() is not required. - core_tpg_pre_dellun() returns always ERR_PTR() or the pointer, never NULL. The check for NULL in core_dev_del_lun() is wrong. The third argument (int *) is never used, remove it. - core_dev_add_lun() returns always NULL or the pointer, never ERR_PTR. The check for IS_ERR() is not required. (nab: Convert core_dev_add_lun() use err.h macros for failure handling to be consistent with the rest of target_core_fabric_configfs.c callers) Signed-off-by: Sebastian Andrzej Siewior Cc: Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_device.c | 19 ++++++++++--------- drivers/target/target_core_fabric_configfs.c | 4 ++-- drivers/target/target_core_internal.h | 2 +- drivers/target/target_core_tpg.c | 3 +-- 4 files changed, 14 insertions(+), 14 deletions(-) diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c index 00159a4e781f..de5f4fea7f62 100644 --- a/drivers/target/target_core_device.c +++ b/drivers/target/target_core_device.c @@ -1295,24 +1295,26 @@ struct se_lun *core_dev_add_lun( { struct se_lun *lun_p; u32 lun_access = 0; + int rc; if (atomic_read(&dev->dev_access_obj.obj_access_count) != 0) { pr_err("Unable to export struct se_device while dev_access_obj: %d\n", atomic_read(&dev->dev_access_obj.obj_access_count)); - return NULL; + return ERR_PTR(-EACCES); } lun_p = core_tpg_pre_addlun(tpg, lun); - if ((IS_ERR(lun_p)) || !lun_p) - return NULL; + if (IS_ERR(lun_p)) + return lun_p; if (dev->dev_flags & DF_READ_ONLY) lun_access = TRANSPORT_LUNFLAGS_READ_ONLY; else lun_access = TRANSPORT_LUNFLAGS_READ_WRITE; - if (core_tpg_post_addlun(tpg, lun_p, lun_access, dev) < 0) - return NULL; + rc = core_tpg_post_addlun(tpg, lun_p, lun_access, dev); + if (rc < 0) + return ERR_PTR(rc); pr_debug("%s_TPG[%u]_LUN[%u] - Activated %s Logical Unit from" " CORE HBA: %u\n", tpg->se_tpg_tfo->get_fabric_name(), @@ -1349,11 +1351,10 @@ int core_dev_del_lun( u32 unpacked_lun) { struct se_lun *lun; - int ret = 0; - lun = core_tpg_pre_dellun(tpg, unpacked_lun, &ret); - if (!lun) - return ret; + lun = core_tpg_pre_dellun(tpg, unpacked_lun); + if (IS_ERR(lun)) + return PTR_ERR(lun); core_tpg_post_dellun(tpg, lun); diff --git a/drivers/target/target_core_fabric_configfs.c b/drivers/target/target_core_fabric_configfs.c index 4f77cce22646..9a2ce11e1a6e 100644 --- a/drivers/target/target_core_fabric_configfs.c +++ b/drivers/target/target_core_fabric_configfs.c @@ -766,9 +766,9 @@ static int target_fabric_port_link( lun_p = core_dev_add_lun(se_tpg, dev->se_hba, dev, lun->unpacked_lun); - if (IS_ERR(lun_p) || !lun_p) { + if (IS_ERR(lun_p)) { pr_err("core_dev_add_lun() failed\n"); - ret = -EINVAL; + ret = PTR_ERR(lun_p); goto out; } diff --git a/drivers/target/target_core_internal.h b/drivers/target/target_core_internal.h index 26f135e94f6e..45001364788a 100644 --- a/drivers/target/target_core_internal.h +++ b/drivers/target/target_core_internal.h @@ -90,7 +90,7 @@ void core_tpg_wait_for_nacl_pr_ref(struct se_node_acl *); struct se_lun *core_tpg_pre_addlun(struct se_portal_group *, u32); int core_tpg_post_addlun(struct se_portal_group *, struct se_lun *, u32, void *); -struct se_lun *core_tpg_pre_dellun(struct se_portal_group *, u32, int *); +struct se_lun *core_tpg_pre_dellun(struct se_portal_group *, u32 unpacked_lun); int core_tpg_post_dellun(struct se_portal_group *, struct se_lun *); /* target_core_transport.c */ diff --git a/drivers/target/target_core_tpg.c b/drivers/target/target_core_tpg.c index b7668029bb31..06336ecd872d 100644 --- a/drivers/target/target_core_tpg.c +++ b/drivers/target/target_core_tpg.c @@ -807,8 +807,7 @@ static void core_tpg_shutdown_lun( struct se_lun *core_tpg_pre_dellun( struct se_portal_group *tpg, - u32 unpacked_lun, - int *ret) + u32 unpacked_lun) { struct se_lun *lun; -- cgit v1.2.3 From c1ce4bd56f2846de55043374598fd929ad3b711b Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Mon, 16 Jan 2012 16:04:15 -0800 Subject: iscsi-target: Fix reject release handling in iscsit_free_cmd() This patch addresses a bug where iscsit_free_cmd() was incorrectly calling iscsit_release_cmd() for ISCSI_OP_REJECT because iscsi_add_reject*() will overwrite the original iscsi_cmd->iscsi_opcode assignment. This bug was introduced with the following commit: commit 0be67f2ed8f577d2c72d917928394c5885fa9134 Author: Nicholas Bellinger Date: Sun Oct 9 01:48:14 2011 -0700 iscsi-target: Remove SCF_SE_LUN_CMD flag abuses and was manifesting itself as list corruption with the following: [ 131.191092] ------------[ cut here ]------------ [ 131.191092] WARNING: at lib/list_debug.c:53 __list_del_entry+0x8d/0x98() [ 131.191092] Hardware name: VMware Virtual Platform [ 131.191092] list_del corruption. prev->next should be ffff880022d3c100, but was 6b6b6b6b6b6b6b6b [ 131.191092] Modules linked in: tcm_vhost ib_srpt ib_cm ib_sa ib_mad ib_core tcm_qla2xxx qla2xxx tcm_loop tcm_fc libfc scsi_transport_fc crc32c iscsi_target_mod target_core_stgt scsi_tgt target_core_pscsi target_core_file target_core_iblock target_core_mod configfs ipv6 iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi sr_mod cdrom sd_mod e1000 ata_piix libata mptspi mptscsih mptbase [last unloaded: scsi_wait_scan] [ 131.191092] Pid: 2250, comm: iscsi_ttx Tainted: G W 3.2.0-rc4+ #42 [ 131.191092] Call Trace: [ 131.191092] [] warn_slowpath_common+0x80/0x98 [ 131.191092] [] warn_slowpath_fmt+0x41/0x43 [ 131.191092] [] __list_del_entry+0x8d/0x98 [ 131.191092] [] transport_lun_remove_cmd+0x9b/0xb7 [target_core_mod] [ 131.191092] [] transport_generic_free_cmd+0x5d/0x71 [target_core_mod] [ 131.191092] [] iscsit_free_cmd+0x1e/0x27 [iscsi_target_mod] [ 131.191092] [] iscsit_close_connection+0x14d/0x5b2 [iscsi_target_mod] [ 131.191092] [] iscsit_take_action_for_connection_exit+0xdb/0xe0 [iscsi_target_mod] [ 131.191092] [] iscsi_target_tx_thread+0x15cb/0x1608 [iscsi_target_mod] [ 131.191092] [] ? check_preempt_wakeup+0x121/0x185 [ 131.191092] [] ? __dequeue_entity+0x2e/0x33 [ 131.191092] [] ? iscsit_send_text_rsp+0x25f/0x25f [iscsi_target_mod] [ 131.191092] [] ? iscsit_send_text_rsp+0x25f/0x25f [iscsi_target_mod] [ 131.191092] [] ? schedule+0x55/0x57 [ 131.191092] [] kthread+0x7d/0x85 [ 131.191092] [] kernel_thread_helper+0x4/0x10 [ 131.191092] [] ? kthread_worker_fn+0x16d/0x16d [ 131.191092] [] ? gs_change+0x13/0x13 Reported-by: Cc: Signed-off-by: Nicholas Bellinger --- drivers/target/iscsi/iscsi_target_util.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/target/iscsi/iscsi_target_util.c b/drivers/target/iscsi/iscsi_target_util.c index a05ca1c4f01c..11287e1ece13 100644 --- a/drivers/target/iscsi/iscsi_target_util.c +++ b/drivers/target/iscsi/iscsi_target_util.c @@ -849,6 +849,17 @@ void iscsit_free_cmd(struct iscsi_cmd *cmd) case ISCSI_OP_SCSI_TMFUNC: transport_generic_free_cmd(&cmd->se_cmd, 1); break; + case ISCSI_OP_REJECT: + /* + * Handle special case for REJECT when iscsi_add_reject*() has + * overwritten the original iscsi_opcode assignment, and the + * associated cmd->se_cmd needs to be released. + */ + if (cmd->se_cmd.se_tfo != NULL) { + transport_generic_free_cmd(&cmd->se_cmd, 1); + break; + } + /* Fall-through */ default: iscsit_release_cmd(cmd); break; -- cgit v1.2.3 From cd931ee62fd0258fc85c76a7c5499fe85e0f3436 Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Mon, 16 Jan 2012 17:11:54 -0800 Subject: iscsi-target: Fix double list_add with iscsit_alloc_buffs reject This patch fixes a bug where the iscsit_add_reject_from_cmd() call from a failure to iscsit_alloc_buffs() was incorrectly passing add_to_conn=1 and causing a double list_add after iscsi_cmd->i_list had already been added in iscsit_handle_scsi_cmd(). Cc: Signed-off-by: Nicholas Bellinger --- drivers/target/iscsi/iscsi_target.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c index ac44af165b27..6e070e0a8393 100644 --- a/drivers/target/iscsi/iscsi_target.c +++ b/drivers/target/iscsi/iscsi_target.c @@ -1061,7 +1061,7 @@ attach_cmd: if (ret < 0) return iscsit_add_reject_from_cmd( ISCSI_REASON_BOOKMARK_NO_RESOURCES, - 1, 1, buf, cmd); + 1, 0, buf, cmd); /* * Check the CmdSN against ExpCmdSN/MaxCmdSN here if * the Immediate Bit is not set, and no Immediate -- cgit v1.2.3 From f8d48ae52eeec906d7fb42485eb26a5d305bab0a Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Sun, 15 Jan 2012 14:30:24 +0300 Subject: iscsi-target: make one-bit bitfields unsigned Signed bitfields are a problem because instead of being 1 or 0 like you'd expect they are 0 and -1. It doesn't cause a problem in this case but sparse complains: drivers/target/iscsi/iscsi_target_core.h:564:56: error: dubious one-bit signed bitfield Signed-off-by: Dan Carpenter Signed-off-by: Nicholas Bellinger --- drivers/target/iscsi/iscsi_target_core.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/target/iscsi/iscsi_target_core.h b/drivers/target/iscsi/iscsi_target_core.h index f1a02dad05a0..ebf81fdbb5c5 100644 --- a/drivers/target/iscsi/iscsi_target_core.h +++ b/drivers/target/iscsi/iscsi_target_core.h @@ -561,8 +561,8 @@ struct iscsi_conn { struct hash_desc conn_tx_hash; /* Used for scheduling TX and RX connection kthreads */ cpumask_var_t conn_cpumask; - int conn_rx_reset_cpumask:1; - int conn_tx_reset_cpumask:1; + unsigned int conn_rx_reset_cpumask:1; + unsigned int conn_tx_reset_cpumask:1; /* list_head of struct iscsi_cmd for this connection */ struct list_head conn_cmd_list; struct list_head immed_queue_list; -- cgit v1.2.3 From e8904dc5008ef92f0f62391d6557f03f921eeb32 Mon Sep 17 00:00:00 2001 From: Jesper Juhl Date: Sun, 15 Jan 2012 19:33:30 +0100 Subject: iscsi-target: Fix up a few assignments A statement such as struct iscsi_node_attrib *na = na = iscsit_tpg_get_node_attrib(sess); has undefined behaviour since there are two assignments to 'na', strictly speaking (the order in which side-effects from the assignments take place is undefined since there's no intervening sequence point), and it looks unintentional in any case. Signed-off-by: Jesper Juhl Signed-off-by: Nicholas Bellinger --- drivers/target/iscsi/iscsi_target_erl1.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/target/iscsi/iscsi_target_erl1.c b/drivers/target/iscsi/iscsi_target_erl1.c index 255c0d67e898..27901e37c125 100644 --- a/drivers/target/iscsi/iscsi_target_erl1.c +++ b/drivers/target/iscsi/iscsi_target_erl1.c @@ -1238,7 +1238,7 @@ void iscsit_mod_dataout_timer(struct iscsi_cmd *cmd) { struct iscsi_conn *conn = cmd->conn; struct iscsi_session *sess = conn->sess; - struct iscsi_node_attrib *na = na = iscsit_tpg_get_node_attrib(sess); + struct iscsi_node_attrib *na = iscsit_tpg_get_node_attrib(sess); spin_lock_bh(&cmd->dataout_timeout_lock); if (!(cmd->dataout_timer_flags & ISCSI_TF_RUNNING)) { @@ -1261,7 +1261,7 @@ void iscsit_start_dataout_timer( struct iscsi_conn *conn) { struct iscsi_session *sess = conn->sess; - struct iscsi_node_attrib *na = na = iscsit_tpg_get_node_attrib(sess); + struct iscsi_node_attrib *na = iscsit_tpg_get_node_attrib(sess); if (cmd->dataout_timer_flags & ISCSI_TF_RUNNING) return; -- cgit v1.2.3 From 4949314c7283ea4f9ade182ca599583b89f7edd6 Mon Sep 17 00:00:00 2001 From: Andy Grover Date: Mon, 16 Jan 2012 16:57:08 -0800 Subject: target: Allow control CDBs with data > 1 page We need to handle >1 page control cdbs, so extend the code to do a vmap if bigger than 1 page. It seems like kmap() is still preferable if just a page, fewer TLB shootdowns(?), so keep using that when possible. Rename function pair for their new scope. Signed-off-by: Andy Grover Cc: Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_alua.c | 8 +++--- drivers/target/target_core_cdb.c | 28 ++++++++++----------- drivers/target/target_core_device.c | 4 +-- drivers/target/target_core_pr.c | 38 ++++++++++++++-------------- drivers/target/target_core_pscsi.c | 4 +-- drivers/target/target_core_transport.c | 45 +++++++++++++++++++++++++--------- include/target/target_core_backend.h | 4 +-- include/target/target_core_base.h | 1 + 8 files changed, 78 insertions(+), 54 deletions(-) diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c index 1b1edd14f4bf..01a2691dfb47 100644 --- a/drivers/target/target_core_alua.c +++ b/drivers/target/target_core_alua.c @@ -78,7 +78,7 @@ int target_emulate_report_target_port_groups(struct se_task *task) return -EINVAL; } - buf = transport_kmap_first_data_page(cmd); + buf = transport_kmap_data_sg(cmd); spin_lock(&su_dev->t10_alua.tg_pt_gps_lock); list_for_each_entry(tg_pt_gp, &su_dev->t10_alua.tg_pt_gps_list, @@ -163,7 +163,7 @@ int target_emulate_report_target_port_groups(struct se_task *task) buf[2] = ((rd_len >> 8) & 0xff); buf[3] = (rd_len & 0xff); - transport_kunmap_first_data_page(cmd); + transport_kunmap_data_sg(cmd); task->task_scsi_status = GOOD; transport_complete_task(task, 1); @@ -194,7 +194,7 @@ int target_emulate_set_target_port_groups(struct se_task *task) cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; return -EINVAL; } - buf = transport_kmap_first_data_page(cmd); + buf = transport_kmap_data_sg(cmd); /* * Determine if explict ALUA via SET_TARGET_PORT_GROUPS is allowed @@ -351,7 +351,7 @@ int target_emulate_set_target_port_groups(struct se_task *task) } out: - transport_kunmap_first_data_page(cmd); + transport_kunmap_data_sg(cmd); task->task_scsi_status = GOOD; transport_complete_task(task, 1); return 0; diff --git a/drivers/target/target_core_cdb.c b/drivers/target/target_core_cdb.c index 2f2235edefff..07a3025d0622 100644 --- a/drivers/target/target_core_cdb.c +++ b/drivers/target/target_core_cdb.c @@ -83,7 +83,7 @@ target_emulate_inquiry_std(struct se_cmd *cmd) return -EINVAL; } - buf = transport_kmap_first_data_page(cmd); + buf = transport_kmap_data_sg(cmd); if (dev == tpg->tpg_virt_lun0.lun_se_dev) { buf[0] = 0x3f; /* Not connected */ @@ -134,7 +134,7 @@ target_emulate_inquiry_std(struct se_cmd *cmd) buf[4] = 31; /* Set additional length to 31 */ out: - transport_kunmap_first_data_page(cmd); + transport_kunmap_data_sg(cmd); return 0; } @@ -716,7 +716,7 @@ int target_emulate_inquiry(struct se_task *task) return -EINVAL; } - buf = transport_kmap_first_data_page(cmd); + buf = transport_kmap_data_sg(cmd); buf[0] = dev->transport->get_device_type(dev); @@ -733,7 +733,7 @@ int target_emulate_inquiry(struct se_task *task) ret = -EINVAL; out_unmap: - transport_kunmap_first_data_page(cmd); + transport_kunmap_data_sg(cmd); out: if (!ret) { task->task_scsi_status = GOOD; @@ -755,7 +755,7 @@ int target_emulate_readcapacity(struct se_task *task) else blocks = (u32)blocks_long; - buf = transport_kmap_first_data_page(cmd); + buf = transport_kmap_data_sg(cmd); buf[0] = (blocks >> 24) & 0xff; buf[1] = (blocks >> 16) & 0xff; @@ -771,7 +771,7 @@ int target_emulate_readcapacity(struct se_task *task) if (dev->se_sub_dev->se_dev_attrib.emulate_tpu || dev->se_sub_dev->se_dev_attrib.emulate_tpws) put_unaligned_be32(0xFFFFFFFF, &buf[0]); - transport_kunmap_first_data_page(cmd); + transport_kunmap_data_sg(cmd); task->task_scsi_status = GOOD; transport_complete_task(task, 1); @@ -785,7 +785,7 @@ int target_emulate_readcapacity_16(struct se_task *task) unsigned char *buf; unsigned long long blocks = dev->transport->get_blocks(dev); - buf = transport_kmap_first_data_page(cmd); + buf = transport_kmap_data_sg(cmd); buf[0] = (blocks >> 56) & 0xff; buf[1] = (blocks >> 48) & 0xff; @@ -806,7 +806,7 @@ int target_emulate_readcapacity_16(struct se_task *task) if (dev->se_sub_dev->se_dev_attrib.emulate_tpu || dev->se_sub_dev->se_dev_attrib.emulate_tpws) buf[14] = 0x80; - transport_kunmap_first_data_page(cmd); + transport_kunmap_data_sg(cmd); task->task_scsi_status = GOOD; transport_complete_task(task, 1); @@ -1019,9 +1019,9 @@ int target_emulate_modesense(struct se_task *task) offset = cmd->data_length; } - rbuf = transport_kmap_first_data_page(cmd); + rbuf = transport_kmap_data_sg(cmd); memcpy(rbuf, buf, offset); - transport_kunmap_first_data_page(cmd); + transport_kunmap_data_sg(cmd); task->task_scsi_status = GOOD; transport_complete_task(task, 1); @@ -1043,7 +1043,7 @@ int target_emulate_request_sense(struct se_task *task) return -ENOSYS; } - buf = transport_kmap_first_data_page(cmd); + buf = transport_kmap_data_sg(cmd); if (!core_scsi3_ua_clear_for_request_sense(cmd, &ua_asc, &ua_ascq)) { /* @@ -1089,7 +1089,7 @@ int target_emulate_request_sense(struct se_task *task) } end: - transport_kunmap_first_data_page(cmd); + transport_kunmap_data_sg(cmd); task->task_scsi_status = GOOD; transport_complete_task(task, 1); return 0; @@ -1123,7 +1123,7 @@ int target_emulate_unmap(struct se_task *task) dl = get_unaligned_be16(&cdb[0]); bd_dl = get_unaligned_be16(&cdb[2]); - buf = transport_kmap_first_data_page(cmd); + buf = transport_kmap_data_sg(cmd); ptr = &buf[offset]; pr_debug("UNMAP: Sub: %s Using dl: %hu bd_dl: %hu size: %hu" @@ -1147,7 +1147,7 @@ int target_emulate_unmap(struct se_task *task) } err: - transport_kunmap_first_data_page(cmd); + transport_kunmap_data_sg(cmd); if (!ret) { task->task_scsi_status = GOOD; transport_complete_task(task, 1); diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c index de5f4fea7f62..edbcabbf85f7 100644 --- a/drivers/target/target_core_device.c +++ b/drivers/target/target_core_device.c @@ -657,7 +657,7 @@ int target_report_luns(struct se_task *se_task) unsigned char *buf; u32 cdb_offset = 0, lun_count = 0, offset = 8, i; - buf = transport_kmap_first_data_page(se_cmd); + buf = (unsigned char *) transport_kmap_data_sg(se_cmd); /* * If no struct se_session pointer is present, this struct se_cmd is @@ -695,7 +695,7 @@ int target_report_luns(struct se_task *se_task) * See SPC3 r07, page 159. */ done: - transport_kunmap_first_data_page(se_cmd); + transport_kunmap_data_sg(se_cmd); lun_count *= 8; buf[0] = ((lun_count >> 24) & 0xff); buf[1] = ((lun_count >> 16) & 0xff); diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c index 68c71cd7a88e..b7c779389eea 100644 --- a/drivers/target/target_core_pr.c +++ b/drivers/target/target_core_pr.c @@ -1535,7 +1535,7 @@ static int core_scsi3_decode_spec_i_port( tidh_new->dest_local_nexus = 1; list_add_tail(&tidh_new->dest_list, &tid_dest_list); - buf = transport_kmap_first_data_page(cmd); + buf = transport_kmap_data_sg(cmd); /* * For a PERSISTENT RESERVE OUT specify initiator ports payload, * first extract TransportID Parameter Data Length, and make sure @@ -1786,7 +1786,7 @@ static int core_scsi3_decode_spec_i_port( } - transport_kunmap_first_data_page(cmd); + transport_kunmap_data_sg(cmd); /* * Go ahead and create a registrations from tid_dest_list for the @@ -1834,7 +1834,7 @@ static int core_scsi3_decode_spec_i_port( return 0; out: - transport_kunmap_first_data_page(cmd); + transport_kunmap_data_sg(cmd); /* * For the failure case, release everything from tid_dest_list * including *dest_pr_reg and the configfs dependances.. @@ -3411,14 +3411,14 @@ static int core_scsi3_emulate_pro_register_and_move( * will be moved to for the TransportID containing SCSI initiator WWN * information. */ - buf = transport_kmap_first_data_page(cmd); + buf = transport_kmap_data_sg(cmd); rtpi = (buf[18] & 0xff) << 8; rtpi |= buf[19] & 0xff; tid_len = (buf[20] & 0xff) << 24; tid_len |= (buf[21] & 0xff) << 16; tid_len |= (buf[22] & 0xff) << 8; tid_len |= buf[23] & 0xff; - transport_kunmap_first_data_page(cmd); + transport_kunmap_data_sg(cmd); buf = NULL; if ((tid_len + 24) != cmd->data_length) { @@ -3470,7 +3470,7 @@ static int core_scsi3_emulate_pro_register_and_move( return -EINVAL; } - buf = transport_kmap_first_data_page(cmd); + buf = transport_kmap_data_sg(cmd); proto_ident = (buf[24] & 0x0f); #if 0 pr_debug("SPC-3 PR REGISTER_AND_MOVE: Extracted Protocol Identifier:" @@ -3504,7 +3504,7 @@ static int core_scsi3_emulate_pro_register_and_move( goto out; } - transport_kunmap_first_data_page(cmd); + transport_kunmap_data_sg(cmd); buf = NULL; pr_debug("SPC-3 PR [%s] Extracted initiator %s identifier: %s" @@ -3769,13 +3769,13 @@ after_iport_check: " REGISTER_AND_MOVE\n"); } - transport_kunmap_first_data_page(cmd); + transport_kunmap_data_sg(cmd); core_scsi3_put_pr_reg(dest_pr_reg); return 0; out: if (buf) - transport_kunmap_first_data_page(cmd); + transport_kunmap_data_sg(cmd); if (dest_se_deve) core_scsi3_lunacl_undepend_item(dest_se_deve); if (dest_node_acl) @@ -3849,7 +3849,7 @@ int target_scsi3_emulate_pr_out(struct se_task *task) scope = (cdb[2] & 0xf0); type = (cdb[2] & 0x0f); - buf = transport_kmap_first_data_page(cmd); + buf = transport_kmap_data_sg(cmd); /* * From PERSISTENT_RESERVE_OUT parameter list (payload) */ @@ -3867,7 +3867,7 @@ int target_scsi3_emulate_pr_out(struct se_task *task) aptpl = (buf[17] & 0x01); unreg = (buf[17] & 0x02); } - transport_kunmap_first_data_page(cmd); + transport_kunmap_data_sg(cmd); buf = NULL; /* @@ -3967,7 +3967,7 @@ static int core_scsi3_pri_read_keys(struct se_cmd *cmd) return -EINVAL; } - buf = transport_kmap_first_data_page(cmd); + buf = transport_kmap_data_sg(cmd); buf[0] = ((su_dev->t10_pr.pr_generation >> 24) & 0xff); buf[1] = ((su_dev->t10_pr.pr_generation >> 16) & 0xff); buf[2] = ((su_dev->t10_pr.pr_generation >> 8) & 0xff); @@ -4001,7 +4001,7 @@ static int core_scsi3_pri_read_keys(struct se_cmd *cmd) buf[6] = ((add_len >> 8) & 0xff); buf[7] = (add_len & 0xff); - transport_kunmap_first_data_page(cmd); + transport_kunmap_data_sg(cmd); return 0; } @@ -4027,7 +4027,7 @@ static int core_scsi3_pri_read_reservation(struct se_cmd *cmd) return -EINVAL; } - buf = transport_kmap_first_data_page(cmd); + buf = transport_kmap_data_sg(cmd); buf[0] = ((su_dev->t10_pr.pr_generation >> 24) & 0xff); buf[1] = ((su_dev->t10_pr.pr_generation >> 16) & 0xff); buf[2] = ((su_dev->t10_pr.pr_generation >> 8) & 0xff); @@ -4086,7 +4086,7 @@ static int core_scsi3_pri_read_reservation(struct se_cmd *cmd) err: spin_unlock(&se_dev->dev_reservation_lock); - transport_kunmap_first_data_page(cmd); + transport_kunmap_data_sg(cmd); return 0; } @@ -4110,7 +4110,7 @@ static int core_scsi3_pri_report_capabilities(struct se_cmd *cmd) return -EINVAL; } - buf = transport_kmap_first_data_page(cmd); + buf = transport_kmap_data_sg(cmd); buf[0] = ((add_len << 8) & 0xff); buf[1] = (add_len & 0xff); @@ -4142,7 +4142,7 @@ static int core_scsi3_pri_report_capabilities(struct se_cmd *cmd) buf[4] |= 0x02; /* PR_TYPE_WRITE_EXCLUSIVE */ buf[5] |= 0x01; /* PR_TYPE_EXCLUSIVE_ACCESS_ALLREG */ - transport_kunmap_first_data_page(cmd); + transport_kunmap_data_sg(cmd); return 0; } @@ -4172,7 +4172,7 @@ static int core_scsi3_pri_read_full_status(struct se_cmd *cmd) return -EINVAL; } - buf = transport_kmap_first_data_page(cmd); + buf = transport_kmap_data_sg(cmd); buf[0] = ((su_dev->t10_pr.pr_generation >> 24) & 0xff); buf[1] = ((su_dev->t10_pr.pr_generation >> 16) & 0xff); @@ -4293,7 +4293,7 @@ static int core_scsi3_pri_read_full_status(struct se_cmd *cmd) buf[6] = ((add_len >> 8) & 0xff); buf[7] = (add_len & 0xff); - transport_kunmap_first_data_page(cmd); + transport_kunmap_data_sg(cmd); return 0; } diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c index d35467d42e12..8d4def30e9e8 100644 --- a/drivers/target/target_core_pscsi.c +++ b/drivers/target/target_core_pscsi.c @@ -693,7 +693,7 @@ static int pscsi_transport_complete(struct se_task *task) if (task->task_se_cmd->se_deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY) { - unsigned char *buf = transport_kmap_first_data_page(task->task_se_cmd); + unsigned char *buf = transport_kmap_data_sg(task->task_se_cmd); if (cdb[0] == MODE_SENSE_10) { if (!(buf[3] & 0x80)) @@ -703,7 +703,7 @@ static int pscsi_transport_complete(struct se_task *task) buf[2] |= 0x80; } - transport_kunmap_first_data_page(task->task_se_cmd); + transport_kunmap_data_sg(task->task_se_cmd); } } after_mode_sense: diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index e186f7db3860..cf996d81cfcb 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -3084,11 +3084,6 @@ static int transport_generic_cmd_sequencer( (cmd->se_cmd_flags & SCF_SCSI_DATA_SG_IO_CDB))) goto out_unsupported_cdb; - /* Let's limit control cdbs to a page, for simplicity's sake. */ - if ((cmd->se_cmd_flags & SCF_SCSI_CONTROL_SG_IO_CDB) && - size > PAGE_SIZE) - goto out_invalid_cdb_field; - transport_set_supported_SAM_opcode(cmd); return ret; @@ -3492,9 +3487,11 @@ int transport_generic_map_mem_to_cmd( } EXPORT_SYMBOL(transport_generic_map_mem_to_cmd); -void *transport_kmap_first_data_page(struct se_cmd *cmd) +void *transport_kmap_data_sg(struct se_cmd *cmd) { struct scatterlist *sg = cmd->t_data_sg; + struct page **pages; + int i; BUG_ON(!sg); /* @@ -3502,15 +3499,41 @@ void *transport_kmap_first_data_page(struct se_cmd *cmd) * tcm_loop who may be using a contig buffer from the SCSI midlayer for * control CDBs passed as SGLs via transport_generic_map_mem_to_cmd() */ - return kmap(sg_page(sg)) + sg->offset; + if (!cmd->t_data_nents) + return NULL; + else if (cmd->t_data_nents == 1) + return kmap(sg_page(sg)) + sg->offset; + + /* >1 page. use vmap */ + pages = kmalloc(sizeof(*pages) * cmd->t_data_nents, GFP_KERNEL); + if (!pages) + return NULL; + + /* convert sg[] to pages[] */ + for_each_sg(cmd->t_data_sg, sg, cmd->t_data_nents, i) { + pages[i] = sg_page(sg); + } + + cmd->t_data_vmap = vmap(pages, cmd->t_data_nents, VM_MAP, PAGE_KERNEL); + kfree(pages); + if (!cmd->t_data_vmap) + return NULL; + + return cmd->t_data_vmap + cmd->t_data_sg[0].offset; } -EXPORT_SYMBOL(transport_kmap_first_data_page); +EXPORT_SYMBOL(transport_kmap_data_sg); -void transport_kunmap_first_data_page(struct se_cmd *cmd) +void transport_kunmap_data_sg(struct se_cmd *cmd) { - kunmap(sg_page(cmd->t_data_sg)); + if (!cmd->t_data_nents) + return; + else if (cmd->t_data_nents == 1) + kunmap(sg_page(cmd->t_data_sg)); + + vunmap(cmd->t_data_vmap); + cmd->t_data_vmap = NULL; } -EXPORT_SYMBOL(transport_kunmap_first_data_page); +EXPORT_SYMBOL(transport_kunmap_data_sg); static int transport_generic_get_mem(struct se_cmd *cmd) diff --git a/include/target/target_core_backend.h b/include/target/target_core_backend.h index 4866499bdeeb..e5e6ff98f0fa 100644 --- a/include/target/target_core_backend.h +++ b/include/target/target_core_backend.h @@ -59,7 +59,7 @@ int transport_set_vpd_ident_type(struct t10_vpd *, unsigned char *); int transport_set_vpd_ident(struct t10_vpd *, unsigned char *); /* core helpers also used by command snooping in pscsi */ -void *transport_kmap_first_data_page(struct se_cmd *); -void transport_kunmap_first_data_page(struct se_cmd *); +void *transport_kmap_data_sg(struct se_cmd *); +void transport_kunmap_data_sg(struct se_cmd *); #endif /* TARGET_CORE_BACKEND_H */ diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h index daf532bc721a..dc4e345a0163 100644 --- a/include/target/target_core_base.h +++ b/include/target/target_core_base.h @@ -582,6 +582,7 @@ struct se_cmd { struct scatterlist *t_data_sg; unsigned int t_data_nents; + void *t_data_vmap; struct scatterlist *t_bidi_data_sg; unsigned int t_bidi_data_nents; -- cgit v1.2.3 From 2f9bc894c67dbacae5a6a9875818d2a18a918d18 Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Mon, 16 Jan 2012 23:33:48 -0800 Subject: iscsi-target: Fix discovery with INADDR_ANY and IN6ADDR_ANY_INIT This patch addresses a bug with sendtargets discovery where INADDR_ANY (0.0.0.0) + IN6ADDR_ANY_INIT ([0:0:0:0:0:0:0:0]) network portals where incorrectly being reported back to initiators instead of the address of the connecting interface. To address this, save local socket ->getname() output during iscsi login setup, and makes iscsit_build_sendtargets_response() return these TargetAddress keys when INADDR_ANY or IN6ADDR_ANY_INIT portals are in use. Reported-by: Dax Kelson Reported-by: Andy Grover Cc: David S. Miller Cc: Signed-off-by: Nicholas Bellinger --- drivers/target/iscsi/iscsi_target.c | 37 +++++++++++++++++++++++++++---- drivers/target/iscsi/iscsi_target_core.h | 2 ++ drivers/target/iscsi/iscsi_target_login.c | 31 ++++++++++++++++++++++---- 3 files changed, 62 insertions(+), 8 deletions(-) diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c index 6e070e0a8393..44262908def5 100644 --- a/drivers/target/iscsi/iscsi_target.c +++ b/drivers/target/iscsi/iscsi_target.c @@ -3164,6 +3164,30 @@ static int iscsit_send_task_mgt_rsp( return 0; } +static bool iscsit_check_inaddr_any(struct iscsi_np *np) +{ + bool ret = false; + + if (np->np_sockaddr.ss_family == AF_INET6) { + const struct sockaddr_in6 sin6 = { + .sin6_addr = IN6ADDR_ANY_INIT }; + struct sockaddr_in6 *sock_in6 = + (struct sockaddr_in6 *)&np->np_sockaddr; + + if (!memcmp(sock_in6->sin6_addr.s6_addr, + sin6.sin6_addr.s6_addr, 16)) + ret = true; + } else { + struct sockaddr_in * sock_in = + (struct sockaddr_in *)&np->np_sockaddr; + + if (sock_in->sin_addr.s_addr == INADDR_ANY) + ret = true; + } + + return ret; +} + static int iscsit_build_sendtargets_response(struct iscsi_cmd *cmd) { char *payload = NULL; @@ -3213,12 +3237,17 @@ static int iscsit_build_sendtargets_response(struct iscsi_cmd *cmd) spin_lock(&tpg->tpg_np_lock); list_for_each_entry(tpg_np, &tpg->tpg_gnp_list, tpg_np_list) { + struct iscsi_np *np = tpg_np->tpg_np; + bool inaddr_any = iscsit_check_inaddr_any(np); + len = sprintf(buf, "TargetAddress=" "%s%s%s:%hu,%hu", - (tpg_np->tpg_np->np_sockaddr.ss_family == AF_INET6) ? - "[" : "", tpg_np->tpg_np->np_ip, - (tpg_np->tpg_np->np_sockaddr.ss_family == AF_INET6) ? - "]" : "", tpg_np->tpg_np->np_port, + (np->np_sockaddr.ss_family == AF_INET6) ? + "[" : "", (inaddr_any == false) ? + np->np_ip : conn->local_ip, + (np->np_sockaddr.ss_family == AF_INET6) ? + "]" : "", (inaddr_any == false) ? + np->np_port : conn->local_port, tpg->tpgt); len += 1; diff --git a/drivers/target/iscsi/iscsi_target_core.h b/drivers/target/iscsi/iscsi_target_core.h index ebf81fdbb5c5..0ec3b77a0c27 100644 --- a/drivers/target/iscsi/iscsi_target_core.h +++ b/drivers/target/iscsi/iscsi_target_core.h @@ -508,6 +508,7 @@ struct iscsi_conn { u16 cid; /* Remote TCP Port */ u16 login_port; + u16 local_port; int net_size; u32 auth_id; #define CONNFLAG_SCTP_STRUCT_FILE 0x01 @@ -527,6 +528,7 @@ struct iscsi_conn { unsigned char bad_hdr[ISCSI_HDR_LEN]; #define IPV6_ADDRESS_SPACE 48 unsigned char login_ip[IPV6_ADDRESS_SPACE]; + unsigned char local_ip[IPV6_ADDRESS_SPACE]; int conn_usage_count; int conn_waiting_on_uc; atomic_t check_immediate_queue; diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c index 373b0cc6abd8..ec47a7c5966e 100644 --- a/drivers/target/iscsi/iscsi_target_login.c +++ b/drivers/target/iscsi/iscsi_target_login.c @@ -615,8 +615,8 @@ static int iscsi_post_login_handler( } pr_debug("iSCSI Login successful on CID: %hu from %s to" - " %s:%hu,%hu\n", conn->cid, conn->login_ip, np->np_ip, - np->np_port, tpg->tpgt); + " %s:%hu,%hu\n", conn->cid, conn->login_ip, + conn->local_ip, conn->local_port, tpg->tpgt); list_add_tail(&conn->conn_list, &sess->sess_conn_list); atomic_inc(&sess->nconn); @@ -658,7 +658,8 @@ static int iscsi_post_login_handler( sess->session_state = TARG_SESS_STATE_LOGGED_IN; pr_debug("iSCSI Login successful on CID: %hu from %s to %s:%hu,%hu\n", - conn->cid, conn->login_ip, np->np_ip, np->np_port, tpg->tpgt); + conn->cid, conn->login_ip, conn->local_ip, conn->local_port, + tpg->tpgt); spin_lock_bh(&sess->conn_lock); list_add_tail(&conn->conn_list, &sess->sess_conn_list); @@ -1020,6 +1021,18 @@ static int __iscsi_target_login_thread(struct iscsi_np *np) snprintf(conn->login_ip, sizeof(conn->login_ip), "%pI6c", &sock_in6.sin6_addr.in6_u); conn->login_port = ntohs(sock_in6.sin6_port); + + if (conn->sock->ops->getname(conn->sock, + (struct sockaddr *)&sock_in6, &err, 0) < 0) { + pr_err("sock_ops->getname() failed.\n"); + iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR, + ISCSI_LOGIN_STATUS_TARGET_ERROR); + goto new_sess_out; + } + snprintf(conn->local_ip, sizeof(conn->local_ip), "%pI6c", + &sock_in6.sin6_addr.in6_u); + conn->local_port = ntohs(sock_in6.sin6_port); + } else { memset(&sock_in, 0, sizeof(struct sockaddr_in)); @@ -1032,6 +1045,16 @@ static int __iscsi_target_login_thread(struct iscsi_np *np) } sprintf(conn->login_ip, "%pI4", &sock_in.sin_addr.s_addr); conn->login_port = ntohs(sock_in.sin_port); + + if (conn->sock->ops->getname(conn->sock, + (struct sockaddr *)&sock_in, &err, 0) < 0) { + pr_err("sock_ops->getname() failed.\n"); + iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR, + ISCSI_LOGIN_STATUS_TARGET_ERROR); + goto new_sess_out; + } + sprintf(conn->local_ip, "%pI4", &sock_in.sin_addr.s_addr); + conn->local_port = ntohs(sock_in.sin_port); } conn->network_transport = np->np_network_transport; @@ -1039,7 +1062,7 @@ static int __iscsi_target_login_thread(struct iscsi_np *np) pr_debug("Received iSCSI login request from %s on %s Network" " Portal %s:%hu\n", conn->login_ip, (conn->network_transport == ISCSI_TCP) ? "TCP" : "SCTP", - np->np_ip, np->np_port); + conn->local_ip, conn->local_port); pr_debug("Moving to TARG_CONN_STATE_IN_LOGIN.\n"); conn->conn_state = TARG_CONN_STATE_IN_LOGIN; -- cgit v1.2.3 From bb1acb2ee038a6c13ee99e0b9fb44dacb4a9de84 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Tue, 17 Jan 2012 18:00:56 -0800 Subject: target: Return correct ASC for unimplemented VPD pages My draft of SPC-4 says: If the device server does not implement the requested vital product data page, then the command shall be terminated with CHECK CONDITION status, with the sense key set to ILLEGAL REQUEST, and the additional sense code set to INVALID FIELD IN CDB. Signed-off-by: Roland Dreier Cc: Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_cdb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/target/target_core_cdb.c b/drivers/target/target_core_cdb.c index 07a3025d0622..370ad13930a4 100644 --- a/drivers/target/target_core_cdb.c +++ b/drivers/target/target_core_cdb.c @@ -729,7 +729,7 @@ int target_emulate_inquiry(struct se_task *task) } pr_err("Unknown VPD Code: 0x%02x\n", cdb[2]); - cmd->scsi_sense_reason = TCM_UNSUPPORTED_SCSI_OPCODE; + cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD; ret = -EINVAL; out_unmap: -- cgit v1.2.3 From bf0053550aebe56f3bb5dd793e9de69238b5b945 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Tue, 17 Jan 2012 18:00:57 -0800 Subject: target: Fail INQUIRY commands with EVPD==0 but PAGE CODE!=0 My draft of SPC-4 says: If the PAGE CODE field is not set to zero when the EVPD bit is set to zero, the command shall be terminated with CHECK CONDITION status, with the sense key set to ILLEGAL REQUEST, and the additional sense code set to INVALID FIELD IN CDB. Signed-off-by: Roland Dreier Cc: Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_cdb.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/target/target_core_cdb.c b/drivers/target/target_core_cdb.c index 370ad13930a4..a9bbf5a5cc27 100644 --- a/drivers/target/target_core_cdb.c +++ b/drivers/target/target_core_cdb.c @@ -698,6 +698,13 @@ int target_emulate_inquiry(struct se_task *task) int p, ret; if (!(cdb[1] & 0x1)) { + if (cdb[2]) { + pr_err("INQUIRY with EVPD==0 but PAGE CODE=%02x\n", + cdb[2]); + cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD; + return -EINVAL; + } + ret = target_emulate_inquiry_std(cmd); goto out; } -- cgit v1.2.3 From 6c5aa407d52e9e40c2e31a3dfa5cb19a9672bf36 Mon Sep 17 00:00:00 2001 From: "Cousson, Benoit" Date: Fri, 20 Jan 2012 16:55:04 +0100 Subject: i2c: OMAP: Fix OMAP1 build error CONFIG_OF is not defined for OMAP1 yet and thus the omap1_defconfig build generate an error for 3.3-rc1. drivers/i2c/busses/i2c-omap.c: In function 'omap_i2c_probe': drivers/i2c/busses/i2c-omap.c:1021:26: error: 'omap_i2c_of_match' undeclared (first use in this function) drivers/i2c/busses/i2c-omap.c:1021:26: note: each undeclared identifier is reported only once for each function it appears in Wrap omap_i2c_of_match with of_match_ptr() to prevent compilation error in case of OMAP1 build. Signed-off-by: Benoit Cousson Cc: Ben Dooks Signed-off-by: Tony Lindgren --- drivers/i2c/busses/i2c-omap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c index f713eac55047..801df6000e9b 100644 --- a/drivers/i2c/busses/i2c-omap.c +++ b/drivers/i2c/busses/i2c-omap.c @@ -1018,7 +1018,7 @@ omap_i2c_probe(struct platform_device *pdev) goto err_release_region; } - match = of_match_device(omap_i2c_of_match, &pdev->dev); + match = of_match_device(of_match_ptr(omap_i2c_of_match), &pdev->dev); if (match) { u32 freq = 100000; /* default to 100000 Hz */ -- cgit v1.2.3 From 7080727c207f569751e94aaed7d94e873c69115f Mon Sep 17 00:00:00 2001 From: Felipe Contreras Date: Fri, 20 Jan 2012 05:38:30 -0800 Subject: ARM: OMAP2: fix omap3 touchbook kconfig warning warning: (MACH_OMAP3_TOUCHBOOK && DRM_RADEON_KMS && DRM_I915 && STUB_POULSBO && FB_BACKLIGHT && USB_APPLEDISPLAY && FB_OLPC_DCON && ASUS_LAPTOP && SONY_LAPTOP && THINKPAD_ACPI && EEEPC_LAPTOP && ACPI_ASUS && ACPI_CMPC && SAMSUNG_Q10) selects BACKLIGHT_CLASS_DEVICE which has unmet direct dependencies (HAS_IOMEM && BACKLIGHT_LCD_SUPPORT) A lot of boards need BACKLIGHT_CLASS_DEVICE for the framebuffers to work, but it's not *needed* for the device itself. It might be nice to enable it by default somewhoe if graphics stuff is enabled, but that's another story. Signed-off-by: Felipe Contreras Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/Kconfig | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig index a8ba7b96dcd1..782a909b3331 100644 --- a/arch/arm/mach-omap2/Kconfig +++ b/arch/arm/mach-omap2/Kconfig @@ -220,7 +220,6 @@ config MACH_OMAP3_TOUCHBOOK bool "OMAP3 Touch Book" depends on ARCH_OMAP3 default y - select BACKLIGHT_CLASS_DEVICE config MACH_OMAP_3430SDP bool "OMAP 3430 SDP board" -- cgit v1.2.3 From a075ccc6810dd2532d6bca548bd6e3b59105bd82 Mon Sep 17 00:00:00 2001 From: Felipe Contreras Date: Fri, 20 Jan 2012 05:38:31 -0800 Subject: ARM: OMAP2: fix regulator warnings warning: (MACH_OMAP_ZOOM2 && MACH_OMAP_ZOOM3 && MACH_OMAP_4430SDP && MACH_OMAP4_PANDA && TPS6105X) selects REGULATOR_FIXED_VOLTAGE which has unmet direct dependencies (REGULATOR) Signed-off-by: Felipe Contreras Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/Kconfig | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig index 782a909b3331..c7261082f00d 100644 --- a/arch/arm/mach-omap2/Kconfig +++ b/arch/arm/mach-omap2/Kconfig @@ -214,7 +214,7 @@ config MACH_OMAP3_PANDORA depends on ARCH_OMAP3 default y select OMAP_PACKAGE_CBB - select REGULATOR_FIXED_VOLTAGE + select REGULATOR_FIXED_VOLTAGE if REGULATOR config MACH_OMAP3_TOUCHBOOK bool "OMAP3 Touch Book" @@ -265,7 +265,7 @@ config MACH_OMAP_ZOOM2 select SERIAL_8250 select SERIAL_CORE_CONSOLE select SERIAL_8250_CONSOLE - select REGULATOR_FIXED_VOLTAGE + select REGULATOR_FIXED_VOLTAGE if REGULATOR config MACH_OMAP_ZOOM3 bool "OMAP3630 Zoom3 board" @@ -275,7 +275,7 @@ config MACH_OMAP_ZOOM3 select SERIAL_8250 select SERIAL_CORE_CONSOLE select SERIAL_8250_CONSOLE - select REGULATOR_FIXED_VOLTAGE + select REGULATOR_FIXED_VOLTAGE if REGULATOR config MACH_CM_T35 bool "CompuLab CM-T35/CM-T3730 modules" @@ -334,7 +334,7 @@ config MACH_OMAP_4430SDP depends on ARCH_OMAP4 select OMAP_PACKAGE_CBL select OMAP_PACKAGE_CBS - select REGULATOR_FIXED_VOLTAGE + select REGULATOR_FIXED_VOLTAGE if REGULATOR config MACH_OMAP4_PANDA bool "OMAP4 Panda Board" @@ -342,7 +342,7 @@ config MACH_OMAP4_PANDA depends on ARCH_OMAP4 select OMAP_PACKAGE_CBL select OMAP_PACKAGE_CBS - select REGULATOR_FIXED_VOLTAGE + select REGULATOR_FIXED_VOLTAGE if REGULATOR config OMAP3_EMU bool "OMAP3 debugging peripherals" -- cgit v1.2.3 From 7c655099b25c889c1268dba894fbc5d515097752 Mon Sep 17 00:00:00 2001 From: Bas van den Berg Date: Mon, 16 Jan 2012 07:46:02 +0100 Subject: ARM: davinci: DA850: remove non-existing pll1_sysclk4-7 clocks DA850: sysclk4-7 only exist for pll0. for pll1 sysclk1-3 exist. Remove the non-existing clocks. Signed-off-by: Bas van den Berg Signed-off-by: Sekhar Nori --- arch/arm/mach-davinci/da850.c | 32 -------------------------------- 1 file changed, 32 deletions(-) diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c index 0ed7fdb64efb..992c4c410185 100644 --- a/arch/arm/mach-davinci/da850.c +++ b/arch/arm/mach-davinci/da850.c @@ -153,34 +153,6 @@ static struct clk pll1_sysclk3 = { .div_reg = PLLDIV3, }; -static struct clk pll1_sysclk4 = { - .name = "pll1_sysclk4", - .parent = &pll1_clk, - .flags = CLK_PLL, - .div_reg = PLLDIV4, -}; - -static struct clk pll1_sysclk5 = { - .name = "pll1_sysclk5", - .parent = &pll1_clk, - .flags = CLK_PLL, - .div_reg = PLLDIV5, -}; - -static struct clk pll1_sysclk6 = { - .name = "pll0_sysclk6", - .parent = &pll0_clk, - .flags = CLK_PLL, - .div_reg = PLLDIV6, -}; - -static struct clk pll1_sysclk7 = { - .name = "pll1_sysclk7", - .parent = &pll1_clk, - .flags = CLK_PLL, - .div_reg = PLLDIV7, -}; - static struct clk i2c0_clk = { .name = "i2c0", .parent = &pll0_aux_clk, @@ -397,10 +369,6 @@ static struct clk_lookup da850_clks[] = { CLK(NULL, "pll1_aux", &pll1_aux_clk), CLK(NULL, "pll1_sysclk2", &pll1_sysclk2), CLK(NULL, "pll1_sysclk3", &pll1_sysclk3), - CLK(NULL, "pll1_sysclk4", &pll1_sysclk4), - CLK(NULL, "pll1_sysclk5", &pll1_sysclk5), - CLK(NULL, "pll1_sysclk6", &pll1_sysclk6), - CLK(NULL, "pll1_sysclk7", &pll1_sysclk7), CLK("i2c_davinci.1", NULL, &i2c0_clk), CLK(NULL, "timer0", &timerp64_0_clk), CLK("watchdog", NULL, &timerp64_1_clk), -- cgit v1.2.3 From b469d4329cf949043f9b93a6644f2c64015ef8cd Mon Sep 17 00:00:00 2001 From: Tiejun Chen Date: Wed, 11 Jan 2012 05:51:10 +0000 Subject: kmemleak: Only scan non-zero-size areas Kmemleak should only track valid scan areas with a non-zero size. Otherwise, such area may reside just at the end of an object and kmemleak would report "Adding scan area to unknown object". Signed-off-by: Tiejun Chen Signed-off-by: Catalin Marinas --- mm/kmemleak.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/kmemleak.c b/mm/kmemleak.c index c833addd94d7..f9f7310f0fdb 100644 --- a/mm/kmemleak.c +++ b/mm/kmemleak.c @@ -1036,7 +1036,7 @@ void __ref kmemleak_scan_area(const vo