diff options
Diffstat (limited to 'drivers')
93 files changed, 2847 insertions, 1327 deletions
diff --git a/drivers/Makefile b/drivers/Makefile index 24cd47014657..a6abd7a856c6 100644 --- a/drivers/Makefile +++ b/drivers/Makefile @@ -76,7 +76,7 @@ obj-$(CONFIG_DMA_SHARED_BUFFER) += dma-buf/ obj-$(CONFIG_NUBUS) += nubus/ obj-y += macintosh/ obj-$(CONFIG_IDE) += ide/ -obj-$(CONFIG_SCSI) += scsi/ +obj-y += scsi/ obj-y += nvme/ obj-$(CONFIG_ATA) += ata/ obj-$(CONFIG_TARGET_CORE) += target/ diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index aad1b01447de..8e270962b2f3 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -597,8 +597,9 @@ static int ata_get_identity(struct ata_port *ap, struct scsi_device *sdev, int ata_cmd_ioctl(struct scsi_device *scsidev, void __user *arg) { int rc = 0; + u8 sensebuf[SCSI_SENSE_BUFFERSIZE]; u8 scsi_cmd[MAX_COMMAND_SIZE]; - u8 args[4], *argbuf = NULL, *sensebuf = NULL; + u8 args[4], *argbuf = NULL; int argsize = 0; enum dma_data_direction data_dir; struct scsi_sense_hdr sshdr; @@ -610,10 +611,7 @@ int ata_cmd_ioctl(struct scsi_device *scsidev, void __user *arg) if (copy_from_user(args, arg, sizeof(args))) return -EFAULT; - sensebuf = kzalloc(SCSI_SENSE_BUFFERSIZE, GFP_NOIO); - if (!sensebuf) - return -ENOMEM; - + memset(sensebuf, 0, sizeof(sensebuf)); memset(scsi_cmd, 0, sizeof(scsi_cmd)); if (args[3]) { @@ -685,7 +683,6 @@ int ata_cmd_ioctl(struct scsi_device *scsidev, void __user *arg) && copy_to_user(arg + sizeof(args), argbuf, argsize)) rc = -EFAULT; error: - kfree(sensebuf); kfree(argbuf); return rc; } @@ -704,8 +701,9 @@ error: int ata_task_ioctl(struct scsi_device *scsidev, void __user *arg) { int rc = 0; + u8 sensebuf[SCSI_SENSE_BUFFERSIZE]; u8 scsi_cmd[MAX_COMMAND_SIZE]; - u8 args[7], *sensebuf = NULL; + u8 args[7]; struct scsi_sense_hdr sshdr; int cmd_result; @@ -715,10 +713,7 @@ int ata_task_ioctl(struct scsi_device *scsidev, void __user *arg) if (copy_from_user(args, arg, sizeof(args))) return -EFAULT; - sensebuf = kzalloc(SCSI_SENSE_BUFFERSIZE, GFP_NOIO); - if (!sensebuf) - return -ENOMEM; - + memset(sensebuf, 0, sizeof(sensebuf)); memset(scsi_cmd, 0, sizeof(scsi_cmd)); scsi_cmd[0] = ATA_16; scsi_cmd[1] = (3 << 1); /* Non-data */ @@ -769,7 +764,6 @@ int ata_task_ioctl(struct scsi_device *scsidev, void __user *arg) } error: - kfree(sensebuf); return rc; } diff --git a/drivers/block/DAC960.c b/drivers/block/DAC960.c index f6518067aa7d..f99e5c883368 100644 --- a/drivers/block/DAC960.c +++ b/drivers/block/DAC960.c @@ -21,6 +21,7 @@ #define DAC960_DriverDate "21 Aug 2007" +#include <linux/compiler.h> #include <linux/module.h> #include <linux/types.h> #include <linux/miscdevice.h> @@ -6426,7 +6427,7 @@ static bool DAC960_V2_ExecuteUserCommand(DAC960_Controller_T *Controller, return true; } -static int dac960_proc_show(struct seq_file *m, void *v) +static int __maybe_unused dac960_proc_show(struct seq_file *m, void *v) { unsigned char *StatusMessage = "OK\n"; int ControllerNumber; @@ -6446,14 +6447,16 @@ static int dac960_proc_show(struct seq_file *m, void *v) return 0; } -static int dac960_initial_status_proc_show(struct seq_file *m, void *v) +static int __maybe_unused dac960_initial_status_proc_show(struct seq_file *m, + void *v) { DAC960_Controller_T *Controller = (DAC960_Controller_T *)m->private; seq_printf(m, "%.*s", Controller->InitialStatusLength, Controller->CombinedStatusBuffer); return 0; } -static int dac960_current_status_proc_show(struct seq_file *m, void *v) +static int __maybe_unused dac960_current_status_proc_show(struct seq_file *m, + void *v) { DAC960_Controller_T *Controller = (DAC960_Controller_T *) m->private; unsigned char *StatusMessage = diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig index ad9b687a236a..d4913516823f 100644 --- a/drivers/block/Kconfig +++ b/drivers/block/Kconfig @@ -74,12 +74,12 @@ config AMIGA_Z2RAM config CDROM tristate + select BLK_SCSI_REQUEST config GDROM tristate "SEGA Dreamcast GD-ROM drive" depends on SH_DREAMCAST select CDROM - select BLK_SCSI_REQUEST # only for the generic cdrom code help A standard SEGA Dreamcast comes with a modified CD ROM drive called a "GD-ROM" by SEGA to signify it is capable of reading special disks diff --git a/drivers/block/Makefile b/drivers/block/Makefile index dc061158b403..8566b188368b 100644 --- a/drivers/block/Makefile +++ b/drivers/block/Makefile @@ -36,8 +36,11 @@ obj-$(CONFIG_BLK_DEV_RBD) += rbd.o obj-$(CONFIG_BLK_DEV_PCIESSD_MTIP32XX) += mtip32xx/ obj-$(CONFIG_BLK_DEV_RSXX) += rsxx/ -obj-$(CONFIG_BLK_DEV_NULL_BLK) += null_blk.o obj-$(CONFIG_ZRAM) += zram/ +obj-$(CONFIG_BLK_DEV_NULL_BLK) += null_blk.o +null_blk-objs := null_blk_main.o +null_blk-$(CONFIG_BLK_DEV_ZONED) += null_blk_zoned.o + skd-y := skd_main.o swim_mod-y := swim.o swim_asm.o diff --git a/drivers/block/aoe/aoecmd.c b/drivers/block/aoe/aoecmd.c index 096882e54095..136dc507d020 100644 --- a/drivers/block/aoe/aoecmd.c +++ b/drivers/block/aoe/aoecmd.c @@ -1137,6 +1137,7 @@ noskb: if (buf) break; } bvcpy(skb, f->buf->bio, f->iter, n); + /* fall through */ case ATA_CMD_PIO_WRITE: case ATA_CMD_PIO_WRITE_EXT: spin_lock_irq(&d->lock); diff --git a/drivers/block/aoe/aoedev.c b/drivers/block/aoe/aoedev.c index 697f735b07a4..41060e9cedf2 100644 --- a/drivers/block/aoe/aoedev.c +++ b/drivers/block/aoe/aoedev.c @@ -284,8 +284,8 @@ freedev(struct aoedev *d) e = t + d->ntargets; for (; t < e && *t; t++) freetgt(d, *t); - if (d->bufpool) - mempool_destroy(d->bufpool); + + mempool_destroy(d->bufpool); skbpoolfree(d); minor_free(d->sysminor); diff --git a/drivers/block/brd.c b/drivers/block/brd.c index bb976598ee43..df8103dd40ac 100644 --- a/drivers/block/brd.c +++ b/drivers/block/brd.c @@ -254,20 +254,20 @@ static void copy_from_brd(void *dst, struct brd_device *brd, * Process a single bvec of a bio. */ static int brd_do_bvec(struct brd_device *brd, struct page *page, - unsigned int len, unsigned int off, bool is_write, + unsigned int len, unsigned int off, unsigned int op, sector_t sector) { void *mem; int err = 0; - if (is_write) { + if (op_is_write(op)) { err = copy_to_brd_setup(brd, sector, len); if (err) goto out; } mem = kmap_atomic(page); - if (!is_write) { + if (!op_is_write(op)) { copy_from_brd(mem + off, brd, sector, len); flush_dcache_page(page); } else { @@ -296,7 +296,7 @@ static blk_qc_t brd_make_request(struct request_queue *q, struct bio *bio) int err; err = brd_do_bvec(brd, bvec.bv_page, len, bvec.bv_offset, - op_is_write(bio_op(bio)), sector); + bio_op(bio), sector); if (err) goto io_error; sector += len >> SECTOR_SHIFT; @@ -310,15 +310,15 @@ io_error: } static int brd_rw_page(struct block_device *bdev, sector_t sector, - struct page *page, bool is_write) + struct page *page, unsigned int op) { struct brd_device *brd = bdev->bd_disk->private_data; int err; if (PageTransHuge(page)) return -ENOTSUPP; - err = brd_do_bvec(brd, page, PAGE_SIZE, 0, is_write, sector); - page_endio(page, is_write, err); + err = brd_do_bvec(brd, page, PAGE_SIZE, 0, op, sector); + page_endio(page, op_is_write(op), err); return err; } diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index bc4ed2ed40a2..e35a234b0a8f 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -55,12 +55,10 @@ # define __protected_by(x) __attribute__((require_context(x,1,999,"rdwr"))) # define __protected_read_by(x) __attribute__((require_context(x,1,999,"read"))) # define __protected_write_by(x) __attribute__((require_context(x,1,999,"write"))) -# define __must_hold(x) __attribute__((context(x,1,1), require_context(x,1,999,"call"))) #else # define __protected_by(x) # define __protected_read_by(x) # define __protected_write_by(x) -# define __must_hold(x) #endif /* shared module parameters, defined in drbd_main.c */ diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index a80809bd3057..ef8212a4b73e 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -2103,14 +2103,10 @@ static void drbd_destroy_mempools(void) mempool_exit(&drbd_md_io_page_pool); mempool_exit(&drbd_ee_mempool); mempool_exit(&drbd_request_mempool); - if (drbd_ee_cache) - kmem_cache_destroy(drbd_ee_cache); - if (drbd_request_cache) - kmem_cache_destroy(drbd_request_cache); - if (drbd_bm_ext_cache) - kmem_cache_destroy(drbd_bm_ext_cache); - if (drbd_al_ext_cache) - kmem_cache_destroy(drbd_al_ext_cache); + kmem_cache_destroy(drbd_ee_cache); + kmem_cache_destroy(drbd_request_cache); + kmem_cache_destroy(drbd_bm_ext_cache); + kmem_cache_destroy(drbd_al_ext_cache); drbd_ee_cache = NULL; drbd_request_cache = NULL; diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index be9450f5ad1c..75f6b47169e6 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -2674,8 +2674,7 @@ bool drbd_rs_c_min_rate_throttle(struct drbd_device *device) if (c_min_rate == 0) return false; - curr_events = (int)part_stat_read(&disk->part0, sectors[0]) + - (int)part_stat_read(&disk->part0, sectors[1]) - + curr_events = (int)part_stat_read_accum(&disk->part0, sectors) - atomic_read(&device->rs_sect_ev); if (atomic_read(&device->ap_actlog_cnt) @@ -2790,6 +2789,7 @@ static int receive_DataRequest(struct drbd_connection *connection, struct packet then we would do something smarter here than reading the block... */ peer_req->flags |= EE_RS_THIN_REQ; + /* fall through */ case P_RS_DATA_REQUEST: peer_req->w.cb = w_e_end_rsdata_req; fault_type = DRBD_FAULT_RS_RD; @@ -2968,6 +2968,7 @@ static int drbd_asb_recover_0p(struct drbd_peer_device *peer_device) __must_hold /* Else fall through to one of the other strategies... */ drbd_warn(device, "Discard younger/older primary did not find a decision\n" "Using discard-least-changes instead\n"); + /* fall through */ case ASB_DISCARD_ZERO_CHG: if (ch_peer == 0 && ch_self == 0) { rv = test_bit(RESOLVE_CONFLICTS, &peer_device->connection->flags) @@ -2979,6 +2980,7 @@ static int drbd_asb_recover_0p(struct drbd_peer_device *peer_device) __must_hold } if (after_sb_0p == ASB_DISCARD_ZERO_CHG) break; + /* else: fall through */ case ASB_DISCARD_LEAST_CHG: if (ch_self < ch_peer) rv = -1; diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c index d146fedc38bb..19cac36e9737 100644 --- a/drivers/block/drbd/drbd_req.c +++ b/drivers/block/drbd/drbd_req.c @@ -38,7 +38,7 @@ static void _drbd_start_io_acct(struct drbd_device *device, struct drbd_request { struct request_queue *q = device->rq_queue; - generic_start_io_acct(q, bio_data_dir(req->master_bio), + generic_start_io_acct(q, bio_op(req->master_bio), req->i.size >> 9, &device->vdisk->part0); } @@ -47,7 +47,7 @@ static void _drbd_end_io_acct(struct drbd_device *device, struct drbd_request *r { struct request_queue *q = device->rq_queue; - generic_end_io_acct(q, bio_data_dir(req->master_bio), + generic_end_io_acct(q, bio_op(req->master_bio), &device->vdisk->part0, req->start_jif); } diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index 5e793dd7adfb..b8f77e83d456 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -1690,9 +1690,7 @@ void drbd_rs_controller_reset(struct drbd_device *device) atomic_set(&device->rs_sect_in, 0); atomic_set(&device->rs_sect_ev, 0); device->rs_in_flight = 0; - device->rs_last_events = - (int)part_stat_read(&disk->part0, sectors[0]) + - (int)part_stat_read(&disk->part0, sectors[1]); + device->rs_last_events = (int)part_stat_read_accum(&disk->part0, sectors); /* Updating the RCU protected object in place is necessary since this function gets called from atomic context. diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index 8871b5044d9e..48f622728ce6 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -1461,7 +1461,6 @@ static void setup_rw_floppy(void) int i; int r; int flags; - int dflags; unsigned long ready_date; void (*function)(void); @@ -1485,8 +1484,6 @@ static void setup_rw_floppy(void) if (fd_wait_for_completion(ready_date, function)) return; |