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2016-03-17IB/hfi1: Don't call cond_resched in atomic mode when sending packetsKaike Wan
This patch fixed the problem where the driver might reschedule in atomic mode when sending packets. This is due to the fact that the call to cond_resched() in hfi1_do_send() might occur in atomic mode and a check is required to avoid the warning message: "kernel: BUG: scheduling while atomic: swapper/2/0/0x10000100." Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Kaike Wan <kaike.wan@intel.com> Signed-off-by: Jubin John <jubin.john@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-03-17IB/hfi1: Add adaptive cacheless verbs copyDean Luick
The kernel memcpy is faster than a cacheless copy. However, if too much of the L3 cache is overwritten by one-time copies then overall bandwidth suffers. Implement an adaptive scheme where full page copies are tracked and if the number of unique entries are larger than a threshold, verbs will use a cacheless copy. Tracked entries are gradually cleaned, allowing memcpy to resume once the larger copies have stopped. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Jubin John <jubin.john@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-03-17IB/hfi1: Handle host handshake timeoutJubin John
Host handshake timeout can occur during the verify capability state. This is a LNI related failure and should be handled in the same way as other LNI failures. Reviewed-by: Dean Luick <dean.luick@intel.com> Reviewed-by: Easwar Hariharan <easwar.hariharan@intel.com> Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Jubin John <jubin.john@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-03-17IB/hfi1: Add ASIC flag view/clearDean Luick
Different OSes using parts of the same hardware may leave cross-device flags set. Export a debugfs file to view and clear these flags if needed. Reviewed-by: Mitko Haralanov <mitko.haralanov@intel.com> Reviewed-by: Easwar Hariharan <easwar.hariharan@intel.com> Signed-off-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Jubin John <jubin.john@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-03-17IB/hfi1: Hold i2c resource across debugfs open/closeDean Luick
External i2c firmware updates are done in multiple steps and cannot have other things done in between. For debugfs files, acquire the resource on open and release it on close. Reviewed-by: Mitko Haralanov <mitko.haralanov@intel.com> Reviewed-by: Easwar Hariharan <easwar.hariharan@intel.com> Signed-off-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Jubin John <jubin.john@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-03-17IB/hfi1: Reduce hardware mutex timeoutDean Luick
The hardware mutex is now held only long enough to set or clear flags. Reduce the timeout to something more reasonable. Reviewed-by: Mitko Haralanov <mitko.haralanov@intel.com> Reviewed-by: Easwar Hariharan <easwar.hariharan@intel.com> Signed-off-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Jubin John <jubin.john@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-03-17IB/hfi1: Remove unused HFI1_DO_INIT_ASIC flagDean Luick
The flag HFI1_DO_INIT_ASIC flag is no longer used. Remove the flag and the code that sets it. Reviewed-by: Mitko Haralanov <mitko.haralanov@intel.com> Reviewed-by: Easwar Hariharan <easwar.hariharan@intel.com> Signed-off-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Jubin John <jubin.john@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-03-17IB/hfi1: Change thermal init to use resource reservationDean Luick
Use the resource reservation system to flag that the ASIC thermal has been initialized. Reviewed-by: Mitko Haralanov <mitko.haralanov@intel.com> Reviewed-by: Easwar Hariharan <easwar.hariharan@intel.com> Signed-off-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Jubin John <jubin.john@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-03-17IB/hfi1: Change QSFP functions to use resource reservationDean Luick
Remove the mutex guarding each operation in favor the ASIC resource acquire/release. Push the resource acquire/release, above each operation call to allow exclusive access across multiple operations. Reviewed-by: Mitko Haralanov <mitko.haralanov@intel.com> Reviewed-by: Easwar Hariharan <easwar.hariharan@intel.com> Signed-off-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Jubin John <jubin.john@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-03-17IB/hfi1: Change SBus handling to use resource reservationDean Luick
The SBus resource includes SBUS, PCIE, and THERM registers. Change SBus handling to use the new ASIC resource reservation system. Reviewed-by: Mitko Haralanov <mitko.haralanov@intel.com> Reviewed-by: Easwar Hariharan <easwar.hariharan@intel.com> Signed-off-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Jubin John <jubin.john@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-03-17IB/hfi1: Change EPROM handling to use resource reservationDean Luick
Change EPROM handling to use the new ASIC resource reservation system. Reviewed-by: Mitko Haralanov <mitko.haralanov@intel.com> Reviewed-by: Easwar Hariharan <easwar.hariharan@intel.com> Signed-off-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Jubin John <jubin.john@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-03-17IB/hfi1: Add ASIC resource reservation functionsDean Luick
The ASIC block is a shared hardware resource between two devices on the chip. Add functions to acquire and release these resources in a way that is safe for both multiple users on the same OS and multiple users on different OSes, while holding the hardware mutex as little as possible. Reservations are noted in a scratch register in the shared region. There are two types of reservations: per-HFI dynamic and permanent. Reviewed-by: Mitko Haralanov <mitko.haralanov@intel.com> Reviewed-by: Easwar Hariharan <easwar.hariharan@intel.com> Signed-off-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Jubin John <jubin.john@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-03-17IB/hfi1: Add shared ASIC structureDean Luick
Create a shared structure to exist between devices that share the same ASIC. Reviewed-by: Mitko Haralanov <mitko.haralanov@intel.com> Reviewed-by: Easwar Hariharan <easwar.hariharan@intel.com> Signed-off-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Jubin John <jubin.john@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-03-17IB/hfi1: Remove ASIC block clearDean Luick
The ASIC block is shared between two HFIs. Individual devices should not initialize registers there. Retain the power-on values. Individual users set registers as needed with one exception. Clear sbus fast mode on "slow" calls. Reviewed-by: Mitko Haralanov <mitko.haralanov@intel.com> Reviewed-by: Easwar Hariharan <easwar.hariharan@intel.com> Signed-off-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Jubin John <jubin.john@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-03-17IB/hfi1: Replace kmalloc and memcpy with a kmemdupHarish Chegondi
This change was recommended by Coccinelle tool when I ran the command: -bash-4.2$ make coccicheck MODE=patch M=drivers/infiniband/hw/hfi1/ Reviewed-by: Jubin John <jubin.john@intel.com> Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Harish Chegondi <harish.chegondi@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-03-17IB/hfi1: Move constant to the right in bitwise operationsHarish Chegondi
Implement changes recommended by the Coccinelle tool to move constant to the right in bitwise operations -bash-4.2$ make coccicheck MODE=report M=drivers/infiniband/hw/hfi1/ drivers/infiniband/hw/hfi1/pio.c:765:4-16: Move constant to right. drivers/infiniband/hw/hfi1/rc.c:2503:19-29: Move constant to right. drivers/infiniband/hw/hfi1/chip.c:9813:11-22: Move constant to right. drivers/infiniband/hw/hfi1/chip.c:14468:29-40: Move constant to right. Reviewed-by: Jubin John <jubin.john@intel.com> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Harish Chegondi <harish.chegondi@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-03-17IB/hfi1: Add the break statement that was removed in an earlier patchHarish Chegondi
The break statement was unintentionally removed in this patch commit 41ca419abc0ca7ee65d765408cdc1a7fed2897a3 ("staging/rdma/hfi1: Remove hfi1 MR and hfi1 specific qp type") Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Harish Chegondi <harish.chegondi@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-03-17Merge branch 'linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto update from Herbert Xu: "Here is the crypto update for 4.6: API: - Convert remaining crypto_hash users to shash or ahash, also convert blkcipher/ablkcipher users to skcipher. - Remove crypto_hash interface. - Remove crypto_pcomp interface. - Add crypto engine for async cipher drivers. - Add akcipher documentation. - Add skcipher documentation. Algorithms: - Rename crypto/crc32 to avoid name clash with lib/crc32. - Fix bug in keywrap where we zero the wrong pointer. Drivers: - Support T5/M5, T7/M7 SPARC CPUs in n2 hwrng driver. - Add PIC32 hwrng driver. - Support BCM6368 in bcm63xx hwrng driver. - Pack structs for 32-bit compat users in qat. - Use crypto engine in omap-aes. - Add support for sama5d2x SoCs in atmel-sha. - Make atmel-sha available again. - Make sahara hashing available again. - Make ccp hashing available again. - Make sha1-mb available again. - Add support for multiple devices in ccp. - Improve DMA performance in caam. - Add hashing support to rockchip" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (116 commits) crypto: qat - remove redundant arbiter configuration crypto: ux500 - fix checks of error code returned by devm_ioremap_resource() crypto: atmel - fix checks of error code returned by devm_ioremap_resource() crypto: qat - Change the definition of icp_qat_uof_regtype hwrng: exynos - use __maybe_unused to hide pm functions crypto: ccp - Add abstraction for device-specific calls crypto: ccp - CCP versioning support crypto: ccp - Support for multiple CCPs crypto: ccp - Remove check for x86 family and model crypto: ccp - memset request context to zero during import lib/mpi: use "static inline" instead of "extern inline" lib/mpi: avoid assembler warning hwrng: bcm63xx - fix non device tree compatibility crypto: testmgr - allow rfc3686 aes-ctr variants in fips mode. crypto: qat - The AE id should be less than the maximal AE number lib/mpi: Endianness fix crypto: rockchip - add hash support for crypto engine in rk3288 crypto: xts - fix compile errors crypto: doc - add skcipher API documentation crypto: doc - update AEAD AD handling ...
2016-03-11staging: lustre: fix aligments in lnet selftestJames Simmons
Some aligment issues were not caught by checkpatch. We address them here. Some of the alignment issues caused greater than 80 character checkpatch issues. Some changes were done to just make the code more readable and to match our production code. Signed-off-by: James Simmons <jsimmons@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11staging: lustre: report minimum of two buffers for LNet selftest load testJames Simmons
The minimum number reserve buffer for lnet selftest load test is two not one. Signed-off-by: James Simmons <jsimmons@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11staging: lustre: test for proper errno code in lstcon_rpc_trans_abortJames Simmons
The error value returned will be -ETIMEDOUT not ETIMEDOUT. This fixes a typo that prevents us from handling the error case. Signed-off-by: James Simmons <jsimmons@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11staging: lustre: filter remaining extra spacing for lnet selftestJames Simmons
This patch is a result of a filter applied to the lnet selftest code to remove the last bits of hidden white spaces. Signed-off-by: James Simmons <jsimmons@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11staging: lustre: remove extra spacing when setting variable for lnet selftestJames Simmons
Remove any extra spacing for the lines of code setting variables to some value. Signed-off-by: James Simmons <jsimmons@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11staging: lustre: remove extra spacing of variable declartions for lnet selftestJames Simmons
Remove any extra spacing such as "int rc" to "int rc" to match the proper kernel style Signed-off-by: James Simmons <jsimmons@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11staging: lustre: fix spacing issues checkpatch reported in lnet selftestJames Simmons
Remove any extra spacing as reported by checkpatch. Signed-off-by: James Simmons <jsimmons@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11staging: lustre: remove returns in void function for lnet selftestJames Simmons
No reason to have returns at end of void function. Signed-off-by: James Simmons <jsimmons@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11staging: lustre: fix bogus lst errors for lnet selftestIsaac Huang
It should not be counted as errors if a test RPC has been stopped due to administrative actions, e.g. lst end_session from the remote test console. Signed-off-by: Isaac Huang <he.huang@intel.com> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4181 Reviewed-on: http://review.whamcloud.com/13279 Reviewed-by: Amir Shehata <amir.shehata@intel.com> Reviewed-by: Liang Zhen <liang.zhen@intel.com> Reviewed-by: Oleg Drokin <oleg.drokin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11staging: netlogic: Replacing pr_err with dev_err after the call to devm_kzallocG Pooja Shamili
The function devm_kzalloc has a first argument of type struct device *. This is the type of argument required by printing functions such as dev_info, dev_err, etc. Thus, functions like pr_info should not normally be used after a call to devm_kzalloc. Thus, all pr_err occurances are replaced with dev_err function calls Signed-off-by: G Pooja Shamili <poojashamili@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11staging: mt29f_spinand: Replacing pr_info with dev_info after the call to ↵G Pooja Shamili
devm_kzalloc The function devm_kzalloc has a first argument of type struct device *. This is the type of argument required by printing functions such as dev_info, dev_err, etc. Thus, functions like pr_info should not normally be used after a call to devm_kzalloc. Thus, all pr_info occurances are replaced with dev_info function calls. This was done using Coccinelle, the patch being: @@ expression E1,E2; expression list args; @@ E1 = devm_kzalloc(E2, ...); <... - pr_info( + dev_info(E2, args); ...> Signed-off-by: G Pooja Shamili <poojashamili@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11staging: android: ion: fix up file modeGreg Kroah-Hartman
An older accidentally changed this to executable, so fix it back up. Gotta love windows editors... Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11staging: ion: debugfs invalid gfp maskDerek Yerger
The current code attempts assignment of -1 to an unsigned type. Note that in a downstream function ion_page_pool_shrink this mask is only ever evaluated against __GFP_HIGHMEM (drivers/staging/android/ion/ion_page_pool.c, line 125). Signed-off-by: Derek Yerger <dy@drexel.edu> Reviewed-by: Laura Abbott <labbott@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11staging: rts5208: Replace pci_enable_device with pcim_enable_deviceAmitoj Kaur Chawla
Devm_ functions allocate memory that is automatically freed when a driver detaches. Replace pci_enable_device with pcim_enable_device. Remove unnecessary pci_disable_device and pci_release_regions from probe and remove functions in rts5208 driver since pcim_enable_device contains a call to pcim_release which contains calls to both pci_disable_device and pci_release_regions. Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11Staging: ieee80211: Place constant on right side of the test.Sandhya Bankar
Place constant on right side of the test. Signed-off-by: Sandhya Bankar <bankarsandhya512@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11staging: speakup: Replace del_timer with del_timer_syncAmitoj Kaur Chawla
Use del_timer_sync to ensure timer is stopped on all CPUs before the driver exists and the timer should not run when the module is being removed. Since the timer is not called from an interrupt context, this change is safe and will not cause deadlock. The Coccinelle semantic patch used to make this change is as follows: // <smpl> @r@ declarer name module_exit; identifier ex; @@ module_exit(ex); @@ identifier r.ex; @@ ex(...) { <... - del_timer + del_timer_sync (...) ...> } // </smpl> Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11staging: lowmemorykiller: fix 2 checks that checkpatch complainedSandeep Jain
Specifically: lowmemorykiller.c:53: CHECK: use a blank line after enum declarations lowmemorykiller.c:60: CHECK: use a blank line after enum declarations Signed-off-by: Sandeep Jain <sandeepjain.linux@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11staging: mt29f_spinand: Drop void pointer castJanani Ravichandran
Void pointers need not be cast to other pointer types. Semantic patch used: @r@ expression x; void *e; type T; identifier f; @@ ( *((T *)e) | ((T *)x) [...] | ((T *)x)->f | - (T *) e ) Signed-off-by: Janani Ravichandran <janani.rvchndrn@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11staging: rdma: hfi1: file_ops: Replace ALIGN with PAGE_ALIGNAmitoj Kaur Chawla
mm.h contains a helper function PAGE_ALIGN which aligns the pointer to the page boundary instead of using ALIGN(expression, PAGE_SIZE) This change was made with the help of the following Coccinelle semantic patch: //<smpl> @@ expression e; symbol PAGE_SIZE; @@ ( - ALIGN(e, PAGE_SIZE) + PAGE_ALIGN(e) | - IS_ALIGNED(e, PAGE_SIZE) + PAGE_ALIGNED(e) ) //</smpl> Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11staging: rdma: hfi1: driver: Replace IS_ALIGNED with PAGE_ALIGNEDAmitoj Kaur Chawla
mm.h contains a helper function PAGE_ALIGNED which tests whether an address is aligned to PAGE_SIZE instead of using IS_ALIGNED(expression, PAGE_SIZE) This change was made with the help of the following Coccinelle semantic patch: //<smpl> @@ expression e; symbol PAGE_SIZE; @@ ( - ALIGN(e, PAGE_SIZE) + PAGE_ALIGN(e) | - IS_ALIGNED(e, PAGE_SIZE) + PAGE_ALIGNED(e) ) //</smpl> Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11staging: rdma: hfi1: Replace ALIGN with PAGE_ALIGNAmitoj Kaur Chawla
mm.h contains a helper function PAGE_ALIGN which aligns the pointer to the page boundary instead of using ALIGN(expression, PAGE_SIZE) This change was made with the help of the following Coccinelle semantic patch: //<smpl> @@ expression e; symbol PAGE_SIZE; @@ ( - ALIGN(e, PAGE_SIZE) + PAGE_ALIGN(e) | - IS_ALIGNED(e, PAGE_SIZE) + PAGE_ALIGNED(e) ) //</smpl> Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11Staging: rdma: Use min macro instead of ternary operatorBhumika Goyal
This patch replaces ternary operator with macro min as it shorter and thus increases code readability. Macro min return the minimum of the two compared values. Made a semantic patch for changes: @@ type T; T x; T y; @@ ( - x < y ? x : y + min(x,y) | - x > y ? x : y + max(x,y) ) Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11staging: rdma: hfi1: user_sdma.c: Drop void pointer castJanani Ravichandran
Void pointers need not be cast to other pointer types. Semantic patch used: @r@ expression x; void *e; type T; identifier f; @@ ( *((T *)e) | ((T *)x) [...] | ((T *)x)->f | - (T *) e ) Signed-off-by: Janani Ravichandran <janani.rvchndrn@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11staging: rdma: hfi1: Remove unnecessary paranthesesBhaktipriya Shridhar
Removed parantheses on the right hand side of assignments as they are not needed. Coccinelle patch used: @@ expression a, b; @@ a = & -( b -) Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11staging: rdma: hfi1: Remove casts of pointer to same typeBhaktipriya Shridhar
Casting a pointer to a pointer of the same type is unnecessary, so remove these unnecessary casts. This was done with Coccinelle: @@ type T; T *ptr; @@ - (T *)ptr + ptr Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11staging: rdma: hfi1: Remove useless return variablesBhaktipriya Shridhar
This patch removes unnecessary return variables and compresses the return logic. The coccinelle script that finds and fixes this issue is: @@ type T; identifier i,f; constant C; @@ - T i; ...when != i when strict ( return -C; | - i = + return f(...); - return i; ) Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11staging: rdma: hfi1: Remove unnecessary pci_set_drvdata()Amitoj Kaur Chawla
Unnecessary pci_set_drvdata() has been removed since the driver core clears the driver data to NULL after device release or on probe failure. There is no need to manually clear the device driver data to NULL. The Coccinelle semantic patch used to make this change is as follows: //<smpl> @@ struct pci_dev *pci; @@ - pci_set_drvdata(pci, NULL); //</smpl> Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11staging: rdma: hfi1: Do not use | with a variable with value 0Janani Ravichandran
mr->lkey has a value equal to 0. There is no need to combine it with other things with | as for any value x, 0|x is always x. Semantic patch used: @@ expression x, e, e1; statement S; @@ if (x == 0) { ... when != x = e1 when != while(...) S when != for(...;...;...) S ( * x |= e | * x | e ) ... when any } Signed-off-by: Janani Ravichandran <janani.rvchndrn@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11staging: rdma: hfi1: Compress return logicBhaktipriya Shridhar
Simplified function return by merging assignment and return into one line. Found with Coccinelle. @@ expression e; local idexpression ret; @@ - ret = + return e; - return ret; @@ type T; identifier x; @@ - T x; ... when != x Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11staging: rdma: hfi1: Remove unnecessary kfreeAmitoj Kaur Chawla
Remove an unnecessary kfree since rcd->opstats's value must be NULL for the code to execute `bail` label. This fixes the following smatch warning: drivers/staging/rdma/hfi1/init.c:335 hfi1_create_ctxtdata() warn: calling kfree() when 'rcd->opstats' is always NULL. Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11staging: rdma: hfi1: Use setup_timerBhaktipriya Shridhar
The function setup_timer combines the initialization of a timer with the initialization of the timer's function and data fields. The multiline code for timer initialization is now replaced with function setup_timer. This was done with Coccinelle. @@ expression e1, e2, e3; type T; @@ - init_timer(&e1); ... ( - e1.function = e2; ... - e1.data = (T)e3; + setup_timer(&e1, e2, (T)e3); | - e1.data = (T)e3; ... - e1.function = e2; + setup_timer(&e1, e2, (T)e3); | - e1.function = e2; + setup_timer(&e1, e2, 0); ) Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11staging: lustre: lnet: o2iblnd: Use list_for_each_entry_safeBhaktipriya Shridhar
Doubly linked lists which are iterated using list_empty and list_entry macros have been replaced with list_for_each_entry_safe macro. This makes the iteration simpler and more readable. This patch replaces the while loop containing list_empty and list_entry with list_for_each_entry_safe. This was done with Coccinelle. @@ expression E1; identifier I1, I2; type T; iterator name list_for_each_entry_safe; @@ T *I1; + T *tmp; ... - while (list_empty(&E1) == 0) + list_for_each_entry_safe (I1, tmp, &E1, I2) { ...when != T *I1; - I1 = list_entry(E1.next, T, I2); ... } Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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