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path: root/drivers/scsi/arcmsr/arcmsr_hba.c (follow)
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2020-01-06remove ioremap_nocache and devm_ioremap_nocacheChristoph Hellwig1-1/+1
ioremap has provided non-cached semantics by default since the Linux 2.6 days, so remove the additional ioremap_nocache interface. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Arnd Bergmann <arnd@arndb.de>
2019-11-19scsi: arcmsr: fix indentation issuesColin Ian King1-3/+3
There are a few statements that are indented incorrectly, fix these. Link: https://lore.kernel.org/r/20191114180007.325856-1-colin.king@canonical.com Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-22scsi: arcmsr: Fix suspend/resume of ACB_ADAPTER_TYPE_B part 2Ching Huang1-1/+5
From Ching Huang <ching2048@areca.com.tw> For ACB_ADAPTER_TYPE_B controller, the read/write after hibernate and resume may sometimes result in 'isr get an illegal ccb command' in /var/log/messages. This patch fixes it. Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-22scsi: arcmsr: Use dma_alloc_coherent to replace dma_zalloc_coherentChing Huang1-3/+3
From Ching Huang <ching2048@areca.com.tw> dma_zalloc_coherent will be phased out. Use dma_alloc_coherent instead. Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-08scsi: arcmsr: Fix suspend/resume of ACB_ADAPTER_TYPE_BChing Huang1-1/+10
From Ching Huang <ching2048@areca.com.tw> Fix suspend/resume of ACB_ADAPTER_TYPE_B Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-08scsi: arcmsr: Separate 'set dma mask' as a functionChing Huang1-21/+30
From Ching Huang <ching2048@areca.com.tw> Separate 'set dma mask' as a function Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-08scsi: arcmsr: Add an option of set dma_mask_64 for ACB_ADAPTER_TYPE_AChing Huang1-0/+4
From Ching Huang <ching2048@areca.com.tw> Add an option of set dma_mask_64 for ACB_ADAPTER_TYPE_A Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-08scsi: arcmsr: Update ACB_ADAPTER_TYPE_D for >4GB ccb addressingChing Huang1-6/+18
From Ching Huang <ching2048@areca.com.tw> Update ACB_ADAPTER_TYPE_D for >4gb ccb addressing Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-08scsi: arcmsr: Update ACB_ADAPTER_TYPE_C for >4GB ccb addressingChing Huang1-12/+15
From Ching Huang <ching2048@areca.com.tw> Update ACB_ADAPTER_TYPE_C for >4GB ccb addressing Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-08scsi: arcmsr: Update ACB_ADAPTER_TYPE_B for >4GB ccb addressingChing Huang1-5/+17
From Ching Huang <ching2048@areca.com.tw> Update ACB_ADAPTER_TYPE_B for >4GB ccb addressing Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-08scsi: arcmsr: Update ACB_ADAPTER_TYPE_A for >4GB ccb addressingChing Huang1-5/+20
From Ching Huang <ching2048@areca.com.tw> Update ACB_ADAPTER_TYPE_A for >4GB ccb addressing Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-08scsi: arcmsr: Update arcmsr_alloc_ccb_pool for ccb buffer address above 4GBChing Huang1-5/+14
From Ching Huang <ching2048@areca.com.tw> Update arcmsr_alloc_ccb_pool for ccb buffer address above 4GB Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-08scsi: arcmsr: Merge arcmsr_alloc_io_queue to arcmsr_alloc_ccb_poolChing Huang1-50/+77
From Ching Huang <ching2048@areca.com.tw> Merge arcmsr_alloc_io_queue to arcmsr_alloc_ccb_pool Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-08scsi: arcmsr: Rename arcmsr_free_mu to arcmsr_free_io_queueChing Huang1-4/+4
From Ching Huang <ching2048@areca.com.tw> Rename arcmsr_free_mu to arcmsr_free_io_queue Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-08scsi: arcmsr: Rename acb structure member roundup_ccbsize to ioqueue_sizeChing Huang1-9/+9
From Ching Huang <ching2048@areca.com.tw> Rename acb structure member roundup_ccbsize to ioqueue_size Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-12-18scsi: flip the default on use_clusteringChristoph Hellwig1-1/+0
Most SCSI drivers want to enable "clustering", that is merging of segments so that they might span more than a single page. Remove the ENABLE_CLUSTERING define, and require drivers to explicitly set DISABLE_CLUSTERING to disable this feature. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-15scsi: arcmsr: use dma_set_maskChristoph Hellwig1-4/+4
The driver currently uses pci_set_dma_mask despite otherwise using the generic DMA API. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-16scsi: arcmsr: Remove set but not used variables 'id, lun'YueHaibing1-3/+0
Fixes gcc '-Wunused-but-set-variable' warning: drivers/scsi/arcmsr/arcmsr_hba.c: In function 'arcmsr_drain_donequeue': drivers/scsi/arcmsr/arcmsr_hba.c:1320:10: warning: variable 'lun' set but not used [-Wunused-but-set-variable] drivers/scsi/arcmsr/arcmsr_hba.c:1320:6: warning: variable 'id' set but not used [-Wunused-but-set-variable] Never used since introduction in commit ae52e7f09ff5 ("arcmsr: Support 1024 scatter-gather list entries and improve AP while FW trapped and behaviors of EHs"). Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-10scsi: arcmsr: clean up clang warning on extraneous parenthesesColin Ian King1-3/+3
There are extraneous parantheses that are causing clang to produce a warning so remove these. Clean up 3 clang warnings: equality comparison with extraneous parentheses [-Wparentheses-equality] Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11scsi: arcmsr: Spelling s/rebulid/rebuild/Geert Uytterhoeven1-10/+10
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-07-12scsi: arcmsr: Fix error of resuming from hibernation for adapter type EChing Huang1-0/+7
Fix error of resuming from hibernation for adapter type E. Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-03-21scsi: arcmsr: Sleep to avoid CPU stuck too long for waiting adapter readyChing Huang1-0/+10
Sleep to avoid CPU stuck too long for waiting adapter ready. Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-03-21scsi: arcmsr: Handle adapter removed due to thunderbolt cable disconnection.Ching Huang1-0/+80
Handle adapter removed due to thunderbolt cable disconnection. Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-01-22scsi: arcmsr: avoid do_gettimeofdayArnd Bergmann1-27/+10
The arcmsr uses its own implementation of time_to_tm(), along with do_gettimeofday() to read the current time. While the algorithm used here is fine in principle, it suffers from two problems: - it assigns the seconds portion of the timeval to a 32-bit unsigned integer that overflows in 2106 even on 64-bit architectures. - do_gettimeofday() returns a time_t that overflows in 2038 on all 32-bit systems. This changes the time retrieval function to ktime_get_real_seconds(), which returns a proper 64-bit value, and replaces the open-coded time_to_tm() algorithm with a call to the safe time64_to_tm(). I checked way all numbers are indexed and found that months are given in range 0..11 while the days are in range 1..31, same as 'struct tm', but the year value that the firmware expects starts in 2000 while 'struct tm' is based on year 1900, so it needs a small adjustment. [mkp: checkpatch tweaks] Fixes: b416c099472a ("scsi: arcmsr: Add a function to set date and time to firmware") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-12-20scsi: arcmsr: simplify arcmsr_request_device_map routineChing Huang1-135/+34
Simplify arcmsr_request_device_map routine. Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-12-20scsi: arcmsr: simplify all arcmsr_hbaX_get_config routine by call a new get_adapter_config functionChing Huang1-195/+48
Simplify all arcmsr_hbaX_get_config routine by call a new get_adapter_config function. Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-12-20scsi: arcmsr: simplify arcmsr_hbaE_get_config functionChing Huang1-15/+3
Simplify arcmsr_hbaE_get_config function. Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-12-20scsi: arcmsr: waiting for iop firmware ready before issue get_config command to iopChing Huang1-0/+2
Waiting for iop firmware ready before issue get_config command to iop for adapter type A and D. Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-12-20scsi: arcmsr: simplify arcmsr_hbaC_get_config functionChing Huang1-12/+3
Simplify arcmsr_hbaC_get_config function. Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-12-11scsi: arcmsr: remove redundant check for secs < 0Colin Ian King1-4/+0
The check for secs being less than zero is redundant for two reasons. Firstly, secs is unsigned so the check is always going to be false. Secondly, if secs was signed the proceeding calculation of secs is never going to be negative. Hence we can remove this redundant check and day and secs re-adjustment. Detected by static analysis with smatch: arcmsr_set_iop_datetime() warn: unsigned 'secs' is never less than zero. Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-12-06scsi: arcmsr: Fix command result for CHECK_CONDITIONChing Huang1-1/+2
Fix report command result error when CHECK_CONDITION. Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-12-06scsi: arcmsr: Add driver module parameter msix_enableChing Huang1-0/+7
Add module parameter msix_enable so user has the option of disabling MSI-X interrupts if there is a platform problem. Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-12-06scsi: arcmsr: Add driver module parameter msi_enableChing Huang1-3/+13
Add module parameter msi_enable so user has the option of disabling MSI interrupts if there is a platform problem. Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-12-06scsi: arcmsr: Fix grammarChing Huang1-1/+1
Fix grammar. Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-12-06scsi: arcmsr: Adjust whitespaceChing Huang1-5/+5
Adjust tabs and whitespace. Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-12-06scsi: arcmsr: Spin off duplicate codeChing Huang1-14/+13
Spin off duplicate code of timer init for message isr BH in arcmsr_probe and arcmsr_resume as a function arcmsr_init_get_devmap_timer. Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-12-06scsi: arcmsr: Fix clear doorbell queue on ACB_ADAPTER_TYPE_BChing Huang1-2/+11
Fix clear doorbell queue on ACB_ADAPTER_TYPE_B controller. Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-12-06scsi: arcmsr: Add a function to set date and time to firmwareChing Huang1-0/+127
Add a function arcmsr_set_iop_datetime and driver option set_date_time to set date and time to firmware. Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-12-06scsi: arcmsr: Add ACB_F_MSG_GET_CONFIG to acb->acb_flagsChing Huang1-5/+16
Add ACB_F_MSG_GET_CONFIG to acb->acb_flags for for message interrupt checking before schedule work for get device map. Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-12-06scsi: arcmsr: Add driver option cmd_per_lunChing Huang1-2/+8
Add driver option cmd_per_lun to set host->cmd_per_lun value by user. Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-12-06scsi: arcmsr: Replace constant ARCMSR_MAX_OUTSTANDING_CMDChing Huang1-3/+3
Replace constant ARCMSR_MAX_OUTSTANDING_CMD by variable acb->maxOutstanding that was determined by user. Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-12-06scsi: arcmsr: Add driver option host_can_queueChing Huang1-6/+12
Add driver option host_can_queue to set host->can_queue value by user. It's value expands up to 1024. Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-12-06scsi: arcmsr: replace constant ARCMSR_MAX_FREECCB_NUMChing Huang1-5/+8
Replace constant ARCMSR_MAX_FREECCB_NUM by variable acb->maxFreeCCB that was received from firmware. Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-12-06scsi: arcmsr: Add code for ACB_ADAPTER_TYPE_EChing Huang1-1/+527
Add code for ACB_ADAPTER_TYPE_E to support new adapter ARC-1884. Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-12-06scsi: arcmsr: simplify arcmsr_iop_init functionChing Huang1-184/+75
Simplify arcmsr_iop_init function. Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-12-06scsi: arcmsr: Redefine ACB_ADAPTER_TYPE_A, _B, _C, _DChing Huang1-2/+2
Redefine ACB_ADAPTER_TYPE_A, _B, _C, _D and subsequent changes. Signed-off-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-11-21treewide: setup_timer() -> timer_setup()Kees Cook1-7/+5
This converts all remaining cases of the old setup_timer() API into using timer_setup(), where the callback argument is the structure already holding the struct timer_list. These should have no behavioral changes, since they just change which pointer is passed into the callback with the same available pointers after conversion. It handles the following examples, in addition to some other variations. Casting from unsigned long: void my_callback(unsigned long data) { struct something *ptr = (struct something *)data; ... } ... setup_timer(&ptr->my_timer, my_callback, ptr); and forced object casts: void my_callback(struct something *ptr) { ... } ... setup_timer(&ptr->my_timer, my_callback, (unsigned long)ptr); become: void my_callback(struct timer_list *t) { struct something *ptr = from_timer(ptr, t, my_timer); ... } ... timer_setup(&ptr->my_timer, my_callback, 0); Direct function assignments: void my_callback(unsigned long data) { struct something *ptr = (struct something *)data; ... } ... ptr->my_timer.function = my_callback; have a temporary cast added, along with converting the args: void my_callback(struct timer_list *t) { struct something *ptr = from_timer(ptr, t, my_timer); ... } ... ptr->my_timer.function = (TIMER_FUNC_TYPE)my_callback; And finally, callbacks without a data assignment: void my_callback(unsigned long data) { ... } ... setup_timer(&ptr->my_timer, my_callback, 0); have their argument renamed to verify they're unused during conversion: void my_callback(struct timer_list *unused) { ... } ... timer_setup(&ptr->my_timer, my_callback, 0); The conversion is done with the following Coccinelle script: spatch --very-quiet --all-includes --include-headers \ -I ./arch/x86/include -I ./arch/x86/include/generated \ -I ./include -I ./arch/x86/include/uapi \ -I ./arch/x86/include/generated/uapi -I ./include/uapi \ -I ./include/generated/uapi --include ./include/linux/kconfig.h \ --dir . \ --cocci-file ~/src/data/timer_setup.cocci @fix_address_of@ expression e; @@ setup_timer( -&(e) +&e , ...) // Update any raw setup_timer() usages that have a NULL callback, but // would otherwise match change_timer_function_usage, since the latter // will update all function assignments done in the face of a NULL // function initialization in setup_timer(). @change_timer_function_usage_NULL@ expression _E; identifier _timer; type _cast_data; @@ ( -setup_timer(&_E->_timer, NULL, _E); +timer_setup(&_E->_timer, NULL, 0); | -setup_timer(&_E->_timer, NULL, (_cast_data)_E); +timer_setup(&_E->_timer, NULL, 0); | -setup_timer(&_E._timer, NULL, &_E); +timer_setup(&_E._timer, NULL, 0); | -setup_timer(&_E._timer, NULL, (_cast_data)&_E); +timer_setup(&_E._timer, NULL, 0); ) @change_timer_function_usage@ expression _E; identifier _timer; struct timer_list _stl; identifier _callback; type _cast_func, _cast_data; @@ ( -setup_timer(&_E->_timer, _callback, _E); +timer_setup(&_E->_timer, _callback, 0); | -setup_timer(&_E->_timer, &_callback, _E); +timer_setup(&_E->_timer, _callback, 0); | -setup_timer(&_E->_timer, _callback, (_cast_data)_E); +timer_setup(&_E->_timer, _callback, 0); | -setup_timer(&_E->_timer, &_callback, (_cast_data)_E); +timer_setup(&_E->_timer, _callback, 0); | -setup_timer(&_E->_timer, (_cast_func)_callback, _E); +timer_setup(&_E->_timer, _callback, 0); | -setup_timer(&_E->_timer, (_cast_func)&_callback, _E); +timer_setup(&_E->_timer, _callback, 0); | -setup_timer(&_E->_timer, (_cast_func)_callback, (_cast_data)_E); +timer_setup(&_E->_timer, _callback, 0); | -setup_timer(&_E->_timer, (_cast_func)&_callback, (_cast_data)_E); +timer_setup(&_E->_timer, _callback, 0); | -setup_timer(&_E._timer, _callback, (_cast_data)_E); +timer_setup(&_E._timer, _callback, 0); | -setup_timer(&_E._timer, _callback, (_cast_data)&_E); +timer_setup(&_E._timer, _callback, 0); | -setup_timer(&_E._timer, &_callback, (_cast_data)_E); +timer_setup(&_E._timer, _callback, 0); | -setup_timer(&_E._timer, &_callback, (_cast_data)&_E); +timer_setup(&_E._timer, _callback, 0); | -setup_timer(&_E._timer, (_cast_func)_callback, (_cast_data)_E); +timer_setup(&_E._timer, _callback, 0); | -setup_timer(&_E._timer, (_cast_func)_callback, (_cast_data)&_E); +timer_setup(&_E._timer, _callback, 0); | -setup_timer(&_E._timer, (_cast_func)&_callback, (_cast_data)_E); +timer_setup(&_E._timer, _callback, 0); | -setup_timer(&_E._timer, (_cast_func)&_callback, (_cast_data)&_E); +timer_setup(&_E._timer, _callback, 0); | _E->_timer@_stl.function = _callback; | _E->_timer@_stl.function = &_callback; | _E->_timer@_stl.function = (_cast_func)_callback; | _E->_timer@_stl.function = (_cast_func)&_callback; | _E._timer@_stl.function = _callback; | _E._timer@_stl.function = &_callback; | _E._timer@_stl.function = (_cast_func)_callback; | _E._timer@_stl.function = (_cast_func)&_callback; ) // callback(unsigned long arg) @change_callback_handle_cast depends on change_timer_function_usage@ identifier change_timer_function_usage._callback; identifier change_timer_function_usage._timer; type _origtype; identifier _origarg; type _handletype; identifier _handle; @@ void _callback( -_origtype _origarg +struct timer_list *t ) { ( ... when != _origarg _handletype *_handle = -(_handletype *)_origarg; +from_timer(_handle, t, _timer); ... when != _origarg | ... when != _origarg _handletype *_handle = -(void *)_origarg; +from_timer(_handle, t, _timer); ... when != _origarg | ... when != _origarg _handletype *_handle; ... when != _handle _handle = -(_handletype *)_origarg; +from_timer(_handle, t, _timer); ... when != _origarg | ... when != _origarg _handletype *_handle; ... when != _handle _handle = -(void *)_origarg; +from_timer(_handle, t, _timer); ... when != _origarg ) } // callback(unsigned long arg) without existing variable @change_callback_handle_cast_no_arg depends on change_timer_function_usage && !change_callback_handle_cast@ identifier change_timer_function_usage._callback; identifier change_timer_function_usage._timer; type _origtype; identifier _origarg; type _handletype; @@ void _callback( -_origtype _origarg +struct timer_list *t ) { + _handletype *_origarg = from_timer(_origarg, t, _timer); + ... when != _origarg - (_handletype *)_origarg + _origarg ... when != _origarg } // Avoid already converted callbacks. @match_callback_converted depends on change_timer_function_usage && !change_callback_handle_cast && !change_callback_handle_cast_no_arg@ identifier change_timer_function_usage._callback; identifier t; @@ void _callback(struct timer_list *t) { ... } // callback(struct something *handle) @change_callback_handle_arg depends on change_timer_function_usage && !match_callback_converted && !change_callback_handle_cast && !change_callback_handle_cast_no_arg@ identifier change_timer_function_usage._callback; identifier change_timer_function_usage._timer; type _handletype; identifier _handle; @@ void _callback( -_handletype *_handle +struct timer_list *t ) { + _handletype *_handle = from_timer(_handle, t, _timer); ... } // If change_callback_handle_arg ran on an empty function, remove // the added handler. @unchange_callback_handle_arg depends on change_timer_function_usage && change_callback_handle_arg@ identifier change_timer_function_usage._callback; identifier change_timer_function_usage._timer; type _handletype; identifier _handle; identifier t; @@ void _callback(struct timer_list *t) { - _handletype *_handle = from_timer(_handle, t, _timer); } // We only want to refactor the setup_timer() data argument if we've found // the matching callback. This undoes changes in change_timer_function_usage. @unchange_timer_function_usage depends on change_timer_function_usage && !change_callback_handle_cast && !change_callback_handle_cast_no_arg && !change_callback_handle_arg@ expression change_timer_function_usage._E; identifier change_timer_function_usage._timer; identifier change_timer_function_usage._callback; type change_timer_function_usage._cast_data; @@ ( -timer_setup(&_E->_timer, _callback, 0); +setup_timer(&_E->_timer, _callback, (_cast_data)_E); | -timer_setup(&_E._timer, _callback, 0); +setup_timer(&_E._timer, _callback, (_cast_data)&_E); ) // If we fixed a callback from a .function assignment, fix the // assignment cast now. @change_timer_function_assignment depends on change_timer_function_usage && (change_callback_handle_cast || change_callback_handle_cast_no_arg || change_callback_handle_arg)@ expression change_timer_function_usage._E; identifier change_timer_function_usage._timer; identifier change_timer_function_usage._callback; type _cast_func; typedef TIMER_FUNC_TYPE; @@ ( _E->_timer.function = -_callback +(TIMER_FUNC_TYPE)_callback ; | _E->_timer.function = -&_callback +(TIMER_FUNC_TYPE)_callback ; | _E->_timer.function = -(_cast_func)_callback; +(TIMER_FUNC_TYPE)_callback ; | _E->_timer.function = -(_cast_func)&_callback +(TIMER_FUNC_TYPE)_callback ; | _E._timer.function = -_callback +(TIMER_FUNC_TYPE)_callback ; | _E._timer.function = -&_callback; +(TIMER_FUNC_TYPE)_callback ; | _E._timer.function = -(_cast_func)_callback +(TIMER_FUNC_TYPE)_callback ; | _E._timer.function = -(_cast_func)&_callback +(TIMER_FUNC_TYPE)_callback ; ) // Sometimes timer functions are called directly. Replace matched args. @change_timer_function_calls depends on change_timer_function_usage && (change_callback_handle_cast || change_callback_handle_cast_no_arg || change_callback_handle_arg)@ expression _E; identifier change_timer_function_usage._timer; identifier change_timer_function_usage._callback; type _cast_data; @@ _callback( ( -(_cast_data)_E +&_E->_timer | -(_cast_data)&_E +&_E._timer | -_E +&_E->_timer ) ) // If a timer has been configured without a data argument, it can be // converted without regard to the callback argument, since it is unused. @match_timer_function_unused_data@ expression _E; identifier _timer; identifier _callback; @@ ( -setup_timer(&_E->_timer, _callback, 0); +timer_setup(&_E->_timer, _callback, 0); | -setup_timer(&_E->_timer, _callback, 0L); +timer_setup(&_E->_timer, _callback, 0); | -setup_timer(&_E->_timer, _callback, 0UL); +timer_setup(&_E->_timer, _callback, 0); | -setup_timer(&_E._timer, _callback, 0); +timer_setup(&_E._timer, _callback, 0); | -setup_timer(&_E._timer, _callback, 0L); +timer_setup(&_E._timer, _callback, 0); | -setup_timer(&_E._timer, _callback, 0UL); +timer_setup(&_E._timer, _callback, 0); | -setup_timer(&_timer, _callback, 0); +timer_setup(&_timer, _callback, 0); | -setup_timer(&_timer, _callback, 0L); +timer_setup(&_timer, _callback, 0); | -setup_timer(&_timer, _callback, 0UL); +timer_setup(&_timer, _callback, 0); | -setup_timer(_timer, _callback, 0); +timer_setup(_timer, _callback, 0); | -setup_timer(_timer, _callback, 0L); +timer_setup(_timer, _callback, 0); | -setup_timer(_timer, _callback, 0UL); +timer_setup(_timer, _callback, 0); ) @change_callback_unused_data depends on match_timer_function_unused_data@ identifier match_timer_function_unused_data._callback; type _origtype; identifier _origarg; @@ void _callback( -_origtype _origarg +struct timer_list *unused ) { ... when != _origarg } Signed-off-by: Kees Cook <keescook@chromium.org>
2017-11-21treewide: init_timer() -> setup_timer()Kees Cook1-6/+4
This mechanically converts all remaining cases of ancient open-coded timer setup with the old setup_timer() API, which is the first step in timer conversions. This has no behavioral changes, since it ultimately just changes the order of assignment to fields of struct timer_list when finding variations of: init_timer(&t); f.function = timer_callback; t.data = timer_callback_arg; to be converted into: setup_timer(&t, timer_callback, timer_callback_arg); The conversion is done with the following Coccinelle script, which is an improved version of scripts/cocci/api/setup_timer.cocci, in the following ways: - assignments-before-init_timer() cases - limit the .data case removal to the specific struct timer_list instance - handling calls by dereference (timer->field vs timer.field) spatch --very-quiet --all-includes --include-headers \ -I ./arch/x86/include -I ./arch/x86/include/generated \ -I ./include -I ./arch/x86/include/uapi \ -I ./arch/x86/include/generated/uapi -I ./include/uapi \ -I ./include/generated/uapi --include ./include/linux/kconfig.h \ --dir . \ --cocci-file ~/src/data/setup_timer.cocci @fix_address_of@ expression e; @@ init_timer( -&(e) +&e , ...) // Match the common cases first to avoid Coccinelle parsing loops with // "... when" clauses. @match_immediate_function_data_after_init_timer@ expression e, func, da; @@ -init_timer +setup_timer ( \(&e\|e\) +, func, da ); ( -\(e.function\|e->function\) = func; -\(e.data\|e->data\) = da; | -\(e.data\|e->data\) = da; -\(e.function\|e->function\) = func; ) @match_immediate_function_data_before_init_timer@ expression e, func, da; @@ ( -\(e.function\|e->function\) = func; -\(e.data\|e->data\) = da; | -\(e.data\|e->data\) = da; -\(e.function\|e->function\) = func; ) -init_timer +setup_timer ( \(&e\|e\) +, func, da ); @match_function_and_data_after_init_timer@ expression e, e2, e3, e4, e5, func, da; @@ -init_timer +setup_timer ( \(&e\|e\) +, func, da ); ... when != func = e2 when != da = e3 ( -e.function = func; ... when != da = e4 -e.data = da; | -e->function = func; ... when != da = e4 -e->data = da; | -e.data = da; ... when != func = e5 -e.function = func; | -e->data = da; ... when != func = e5 -e->function = func; ) @match_function_and_data_before_init_timer@ expression e, e2, e3, e4, e5, func, da; @@ ( -e.function = func; ... when != da = e4 -e.data = da; | -e->function = func; ... when != da = e4 -e->data = da; | -e.data = da; ... when != func = e5 -e.function = func; | -e->data = da; ... when != func = e5 -e->function = func; ) ... when != func = e2 when != da = e3 -init_timer +setup_timer ( \(&e\|e\) +, func, da ); @r1 exists@ expression t; identifier f; position p; @@ f(...) { ... when any init_timer@p(\(&t\|t\)) ... when any } @r2 exists@ expression r1.t; identifier g != r1.f; expression e8; @@ g(...) { ... when any \(t.data\|t->data\) = e8 ... when any } // It is dangerous to use setup_timer if data field is initialized // in another function. @script:python depends on r2@ p << r1.p; @@ cocci.include_match(False) @r3@ expression r1.t, func, e7; position r1.p; @@ ( -init_timer@p(&t); +setup_timer(&t, func, 0UL); ... when != func = e7 -t.function = func; | -t.function = func; ... when != func = e7 -init_timer@p(&t); +setup_timer(&t, func, 0UL); | -init_timer@p(t); +setup_timer(t, func, 0UL); ... when != func = e7 -t->function = func; | -t->function = func; ... when != func = e7 -init_timer@p(t); +setup_timer(t, func, 0UL); ) Signed-off-by: Kees Cook <keescook@chromium.org>
2016-12-24Replace <asm/uaccess.h> with <linux/uaccess.h> globallyLinus Torvalds1-1/+1
This was entirely automated, using the script by Al: PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*<asm/uaccess.h>' sed -i -e "s!$PATT!#include <linux/uaccess.h>!" \ $(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h) to do the replacement at the end of the merge window. Requested-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-11-08scsi: arcmsr: Use pci_alloc_irq_vectorsChristoph Hellwig1-50/+32
Switch the arcmsr driver to use pci_alloc_irq_vectors. We need to two calls to pci_alloc_irq_vectors as arcmsr only supports multiple MSI-X vectors, but not multiple MSI vectors. Otherwise this cleans up a lot of cruft and allows to use a common request_irq loop for irq types, which happens to only iterate over a single line in the non MSI-X case. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Ching Huang <ching2048@areca.com.tw> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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