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* ide: mark expected switch fall-throughsGustavo A. R. Silva2018-08-131-0/+1
| | | | | | | | In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* treewide: kmalloc() -> kmalloc_array()Kees Cook2018-06-121-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The kmalloc() function has a 2-factor argument form, kmalloc_array(). This patch replaces cases of: kmalloc(a * b, gfp) with: kmalloc_array(a * b, gfp) as well as handling cases of: kmalloc(a * b * c, gfp) with: kmalloc(array3_size(a, b, c), gfp) as it's slightly less ugly than: kmalloc_array(array_size(a, b), c, gfp) This does, however, attempt to ignore constant size factors like: kmalloc(4 * 1024, gfp) though any constants defined via macros get caught up in the conversion. Any factors with a sizeof() of "unsigned char", "char", and "u8" were dropped, since they're redundant. The tools/ directory was manually excluded, since it has its own implementation of kmalloc(). The Coccinelle script used for this was: // Fix redundant parens around sizeof(). @@ type TYPE; expression THING, E; @@ ( kmalloc( - (sizeof(TYPE)) * E + sizeof(TYPE) * E , ...) | kmalloc( - (sizeof(THING)) * E + sizeof(THING) * E , ...) ) // Drop single-byte sizes and redundant parens. @@ expression COUNT; typedef u8; typedef __u8; @@ ( kmalloc( - sizeof(u8) * (COUNT) + COUNT , ...) | kmalloc( - sizeof(__u8) * (COUNT) + COUNT , ...) | kmalloc( - sizeof(char) * (COUNT) + COUNT , ...) | kmalloc( - sizeof(unsigned char) * (COUNT) + COUNT , ...) | kmalloc( - sizeof(u8) * COUNT + COUNT , ...) | kmalloc( - sizeof(__u8) * COUNT + COUNT , ...) | kmalloc( - sizeof(char) * COUNT + COUNT , ...) | kmalloc( - sizeof(unsigned char) * COUNT + COUNT , ...) ) // 2-factor product with sizeof(type/expression) and identifier or constant. @@ type TYPE; expression THING; identifier COUNT_ID; constant COUNT_CONST; @@ ( - kmalloc + kmalloc_array ( - sizeof(TYPE) * (COUNT_ID) + COUNT_ID, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * COUNT_ID + COUNT_ID, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * (COUNT_CONST) + COUNT_CONST, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * COUNT_CONST + COUNT_CONST, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * (COUNT_ID) + COUNT_ID, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * COUNT_ID + COUNT_ID, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * (COUNT_CONST) + COUNT_CONST, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * COUNT_CONST + COUNT_CONST, sizeof(THING) , ...) ) // 2-factor product, only identifiers. @@ identifier SIZE, COUNT; @@ - kmalloc + kmalloc_array ( - SIZE * COUNT + COUNT, SIZE , ...) // 3-factor product with 1 sizeof(type) or sizeof(expression), with // redundant parens removed. @@ expression THING; identifier STRIDE, COUNT; type TYPE; @@ ( kmalloc( - sizeof(TYPE) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kmalloc( - sizeof(TYPE) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kmalloc( - sizeof(TYPE) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kmalloc( - sizeof(TYPE) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kmalloc( - sizeof(THING) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kmalloc( - sizeof(THING) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kmalloc( - sizeof(THING) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kmalloc( - sizeof(THING) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) ) // 3-factor product with 2 sizeof(variable), with redundant parens removed. @@ expression THING1, THING2; identifier COUNT; type TYPE1, TYPE2; @@ ( kmalloc( - sizeof(TYPE1) * sizeof(TYPE2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kmalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kmalloc( - sizeof(THING1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kmalloc( - sizeof(THING1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kmalloc( - sizeof(TYPE1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) | kmalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) ) // 3-factor product, only identifiers, with redundant parens removed. @@ identifier STRIDE, SIZE, COUNT; @@ ( kmalloc( - (COUNT) * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - COUNT * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - COUNT * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - (COUNT) * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - COUNT * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - (COUNT) * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - (COUNT) * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - COUNT * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) ) // Any remaining multi-factor products, first at least 3-factor products, // when they're not all constants... @@ expression E1, E2, E3; constant C1, C2, C3; @@ ( kmalloc(C1 * C2 * C3, ...) | kmalloc( - (E1) * E2 * E3 + array3_size(E1, E2, E3) , ...) | kmalloc( - (E1) * (E2) * E3 + array3_size(E1, E2, E3) , ...) | kmalloc( - (E1) * (E2) * (E3) + array3_size(E1, E2, E3) , ...) | kmalloc( - E1 * E2 * E3 + array3_size(E1, E2, E3) , ...) ) // And then all remaining 2 factors products when they're not all constants, // keeping sizeof() as the second factor argument. @@ expression THING, E1, E2; type TYPE; constant C1, C2, C3; @@ ( kmalloc(sizeof(THING) * C2, ...) | kmalloc(sizeof(TYPE) * C2, ...) | kmalloc(C1 * C2 * C3, ...) | kmalloc(C1 * C2, ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * (E2) + E2, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * E2 + E2, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * (E2) + E2, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * E2 + E2, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - (E1) * E2 + E1, E2 , ...) | - kmalloc + kmalloc_array ( - (E1) * (E2) + E1, E2 , ...) | - kmalloc + kmalloc_array ( - E1 * E2 + E1, E2 , ...) ) Signed-off-by: Kees Cook <keescook@chromium.org>
* ide: remove the PCI_DMA_BUS_IS_PHYS checkChristoph Hellwig2018-05-071-2/+1
| | | | | | | | | | We now have ways to deal with drainage in the block layer, and libata has been using it for ages. We also want to get rid of PCI_DMA_BUS_IS_PHYS now, so just reduce the PCI transfer size for ide - anyone who cares for performance on PCI controllers should have switched to libata long ago. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jens Axboe <axboe@kernel.dk>
* ide: kill ide_toggle_bounceChristoph Hellwig2018-05-071-3/+0
| | | | | | | | | | | | ide_toggle_bounce did select various strange block bounce limits, including not bouncing at all as soon as an iommu is present in the system. Given that the dma_map routines now handle any required bounce buffering except for ISA DMA, and the ide code already must handle either ISA DMA or highmem at least for iommu equipped systems we can get rid of the block layer bounce limit setting entirely. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jens Axboe <axboe@kernel.dk>
* block: Use blk_queue_flag_*() in drivers instead of queue_flag_*()Bart Van Assche2018-03-081-1/+1
| | | | | | | | | | | | | | | | | | | | | | | This patch has been generated as follows: for verb in set_unlocked clear_unlocked set clear; do replace-in-files queue_flag_${verb} blk_queue_flag_${verb%_unlocked} \ $(git grep -lw queue_flag_${verb} drivers block/bsg*) done Except for protecting all queue flag changes with the queue lock this patch does not change any functionality. Cc: Mike Snitzer <snitzer@redhat.com> Cc: Shaohua Li <shli@fb.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.de> Cc: Ming Lei <ming.lei@redhat.com> Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Acked-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
* block: Add 'lock' as third argument to blk_alloc_queue_node()Bart Van Assche2018-02-281-1/+1
| | | | | | | | | | | | This patch does not change any functionality. Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Philipp Reisner <philipp.reisner@linbit.com> Cc: Ulf Hansson <ulf.hansson@linaro.org> Cc: Kees Cook <keescook@chromium.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
* genhd: Rename get_disk() to get_disk_and_module()Jan Kara2018-02-261-1/+1
| | | | | | | | | Rename get_disk() to get_disk_and_module() to make sure what the function does. It's not a great name but at least it is now clear that put_disk() is not it's counterpart. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Jens Axboe <axboe@kernel.dk>
* Merge branch 'timers-core-for-linus' of ↵Linus Torvalds2017-11-131-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer updates from Thomas Gleixner: "Yet another big pile of changes: - More year 2038 work from Arnd slowly reaching the point where we need to think about the syscalls themself. - A new timer function which allows to conditionally (re)arm a timer only when it's either not running or the new expiry time is sooner than the armed expiry time. This allows to use a single timer for multiple timeout requirements w/o caring about the first expiry time at the call site. - A new NMI safe accessor to clock real time for the printk timestamp work. Can be used by tracing, perf as well if required. - A large number of timer setup conversions from Kees which got collected here because either maintainers requested so or they simply got ignored. As Kees pointed out already there are a few trivial merge conflicts and some redundant commits which was unavoidable due to the size of this conversion effort. - Avoid a redundant iteration in the timer wheel softirq processing. - Provide a mechanism to treat RTC implementations depending on their hardware properties, i.e. don't inflict the write at the 0.5 seconds boundary which originates from the PC CMOS RTC to all RTCs. No functional change as drivers need to be updated separately. - The usual small updates to core code clocksource drivers. Nothing really exciting" * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (111 commits) timers: Add a function to start/reduce a timer pstore: Use ktime_get_real_fast_ns() instead of __getnstimeofday() timer: Prepare to change all DEFINE_TIMER() callbacks netfilter: ipvs: Convert timers to use timer_setup() scsi: qla2xxx: Convert timers to use timer_setup() block/aoe: discover_timer: Convert timers to use timer_setup() ide: Convert timers to use timer_setup() drbd: Convert timers to use timer_setup() mailbox: Convert timers to use timer_setup() crypto: Convert timers to use timer_setup() drivers/pcmcia: omap1: Fix error in automated timer conversion ARM: footbridge: Fix typo in timer conversion drivers/sgi-xp: Convert timers to use timer_setup() drivers/pcmcia: Convert timers to use timer_setup() drivers/memstick: Convert timers to use timer_setup() drivers/macintosh: Convert timers to use timer_setup() hwrng/xgene-rng: Convert timers to use timer_setup() auxdisplay: Convert timers to use timer_setup() sparc/led: Convert timers to use timer_setup() mips: ip22/32: Convert timers to use timer_setup() ...
| * ide: Convert timers to use timer_setup()Kees Cook2017-11-061-1/+1
| | | | | | | | | | | | | | | | | | | | In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. Cc: "David S. Miller" <davem@davemloft.net> Cc: linux-ide@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org>
* | ide: free hwif->portdev on hwif_init() failureBartlomiej Zolnierkiewicz2017-10-031-0/+1
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Recent pci_assign_irq() changes uncovered a problem with missing freeing of ide_port class instance on hwif_init() failure in ide_host_register(): ide0: disabled, no IRQ ide0: failed to initialize IDE interface ide0: disabling port cmd64x 0000:00:02.0: IDE controller (0x1095:0x0646 rev 0x07) CMD64x_IDE 0000:00:02.0: BAR 0: can't reserve [io 0x8050-0x8057] cmd64x 0000:00:02.0: can't reserve resources CMD64x_IDE: probe of 0000:00:02.0 failed with error -16 ide_generic: please use "probe_mask=0x3f" module parameter for probing all legacy ISA IDE ports ------------[ cut here ]------------ WARNING: CPU: 0 PID: 1 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x94/0xd0 sysfs: cannot create duplicate filename '/class/ide_port/ide0' ... Trace: [<fffffc00003308a0>] __warn+0x160/0x190 [<fffffc000048c9f4>] sysfs_warn_dup+0x94/0xd0 [<fffffc0000330928>] warn_slowpath_fmt+0x58/0x70 [<fffffc000048c9f4>] sysfs_warn_dup+0x94/0xd0 [<fffffc0000486d40>] kernfs_path_from_node+0x30/0x60 [<fffffc00004874ac>] kernfs_put+0x16c/0x2c0 [<fffffc00004874ac>] kernfs_put+0x16c/0x2c0 [<fffffc000048d010>] sysfs_do_create_link_sd.isra.2+0x100/0x120 [<fffffc00005b9d64>] device_add+0x2a4/0x7c0 [<fffffc00005ba5cc>] device_create_groups_vargs+0x14c/0x170 [<fffffc00005ba518>] device_create_groups_vargs+0x98/0x170 [<fffffc00005ba690>] device_create+0x50/0x70 [<fffffc00005df36c>] ide_host_register+0x48c/0xa00 [<fffffc00005df330>] ide_host_register+0x450/0xa00 [<fffffc00005ba2a0>] device_register+0x20/0x50 [<fffffc00005df330>] ide_host_register+0x450/0xa00 [<fffffc00005df944>] ide_host_add+0x64/0xe0 [<fffffc000079b41c>] kobject_uevent_env+0x16c/0x710 [<fffffc0000310288>] do_one_initcall+0x68/0x260 [<fffffc00007b13bc>] kernel_init+0x1c/0x1a0 [<fffffc00007b13a0>] kernel_init+0x0/0x1a0 [<fffffc0000311868>] ret_from_kernel_thread+0x18/0x20 [<fffffc00007b13a0>] kernel_init+0x0/0x1a0 ---[ end trace 24a70433c3e4d374 ]--- ide0: disabling port Fix the problem by adding missing code to ide_host_register(). Fixes: 30fdfb929e82 ("PCI: Add a call to pci_assign_irq() in pci_device_probe()") Fixes: 0e4c2eeb758a ("alpha/PCI: Replace pci_fixup_irqs() call with host bridge IRQ mapping hooks") Link: http://lkml.kernel.org/r/32ec730f-c1b0-5584-cd35-f8a809122b96@roeck-us.net Reported-by: Guenter Roeck <linux@roeck-us.net> Tested-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> [bhelgaas: add Fixes:] Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com>
* block: Change argument type of scsi_req_init()Bart Van Assche2017-06-201-1/+1
| | | | | | | | | | | Since scsi_req_init() works on a struct scsi_request, change the argument type into struct scsi_request *. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
* block: Make most scsi_req_init() calls implicitBart Van Assche2017-06-201-3/+3
| | | | | | | | | | | | | | | | | | Instead of explicitly calling scsi_req_init() after blk_get_request(), call that function from inside blk_get_request(). Add an .initialize_rq_fn() callback function to the block drivers that need it. Merge the IDE .init_rq_fn() function into .initialize_rq_fn() because it is too small to keep it as a separate function. Keep the scsi_req_init() call in ide_prep_sense() because it follows a blk_rq_init() call. References: commit 82ed4db499b8 ("block: split scsi_request out of struct request") Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.com> Cc: Omar Sandoval <osandov@fb.com> Cc: Nicholas Bellinger <nab@linux-iscsi.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
* block: Introduce queue flag QUEUE_FLAG_SCSI_PASSTHROUGHBart Van Assche2017-06-011-0/+1
| | | | | | | | | | | | | | | From the context where a SCSI command is submitted it is not always possible to figure out whether or not the queue the command is submitted to has struct scsi_request as the first member of its private data. Hence introduce the flag QUEUE_FLAG_SCSI_PASSTHROUGH. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Cc: Omar Sandoval <osandov@fb.com> Cc: Don Brace <don.brace@microsemi.com> Signed-off-by: Jens Axboe <axboe@fb.com>
* ide: use setup_timerGeliang Tang2017-05-081-3/+1
| | | | | | | Use setup_timer() instead of init_timer() to simplify the code. Signed-off-by: Geliang Tang <geliangtang@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* block: split scsi_request out of struct requestChristoph Hellwig2017-01-271-5/+31
| | | | | | | | | | And require all drivers that want to support BLOCK_PC to allocate it as the first thing of their private data. To support this the legacy IDE and BSG code is switched to set cmd_size on their queues to let the block layer allocate the additional space. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
* Replace <asm/uaccess.h> with <linux/uaccess.h> globallyLinus Torvalds2016-12-241-1/+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>
* ide,ata: Rename ATA_IDX to ATA_SENSEHannes Reinecke2015-03-271-1/+1
| | | | | | | ATA-8 defines bit 1 as 'ATA_SENSE', not 'ATA_IDX'. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Tejun Heo <tj@kernel.org>
* m68k/atari - ide: do not register interrupt if host->get_lock is setMichael Schmitz2014-03-041-3/+5
| | | | | | | | | | | | | | | | | | | On m68k, host->get_lock is used to both lock and register the interrupt that the IDE host shares with other device drivers. Registering the IDE interrupt handler in ide-probe.c results in duplicating the interrupt registered (once via host->get lock, and also via init_irq()), and may result in IDE accepting interrupts even when another driver has locked the interrupt hardware. This opens the whole locking scheme up to races. host->get_lock is set on m68k only, so other drivers' behaviour is not changed. Signed-off-by: Michael Schmitz <schmitz@debian.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: David S. Miller <davem@davemloft.net> Cc: linux-ide@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
* drivers: avoid format string in dev_set_nameKees Cook2013-07-031-2/+2
| | | | | | | | | | | Calling dev_set_name with a single paramter causes it to be handled as a format string. Many callers are passing potentially dynamic string content, so use "%s" in those cases to avoid any potential accidents, including wrappers like device_create*() and bdi_register(). Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ide: Fix ordering of procfs registry.Wolfram Sang2010-09-131-9/+3
| | | | | | | | | | | | | | We must ensure that ide_proc_port_register_devices() occurs on an interface before ide_proc_register_driver() executes for that interfaces drives. Therefore defer the registry of the driver device objects backed by ide_bus_type until after ide_proc_port_register_devices() has run and thus all of the drive->proc procfs directory pointers have been setup. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* Revert "ide: skip probe if there are no devices on the port (v2)"David S. Miller2010-03-281-9/+3
| | | | | | | | | | This reverts commit a20b2a44eca52818ef52a94959480b7e6ea2f528. As requested by David Fries. This makes CDROMs which are slave drives on a ribbon without a master disappear and causes other similar kinds of badness. Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-next-2.6Linus Torvalds2010-03-041-0/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-next-2.6: (49 commits) drivers/ide: Fix continuation line formats ide: fixed section mismatch warning in cmd640.c ide: ide_timing_compute() fixup ide: make ide_get_best_pio_mode() static via82cxxx: use ->pio_mode value to determine pair device speed tx493xide: use ->pio_mode value to determine pair device speed siimage: use ->pio_mode value to determine pair device speed palm_bk3710: use ->pio_mode value to determine pair device speed it821x: use ->pio_mode value to determine pair device speed cs5536: use ->pio_mode value to determine pair device speed cs5535: use ->pio_mode value to determine pair device speed cmd64x: fix handling of address setup timings amd74xx: use ->pio_mode value to determine pair device speed alim15x3: fix handling of UDMA enable bit alim15x3: fix handling of DMA timings alim15x3: fix handling of command timings alim15x3: fix handling of address setup timings ide-timings: use ->pio_mode value to determine fastest PIO speed ide: change ->set_dma_mode method parameters ide: change ->set_pio_mode method parameters ...
| * ide: add drive->pio_mode fieldBartlomiej Zolnierkiewicz2010-01-191-0/+2
| | | | | | | | | | | | | | | | | | | | | | Add pio_mode field to ide_drive_t matching pio_mode field used in struct ata_device. The validity of the field is restricted to ->set_pio_mode method only currently in IDE subsystem. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | block: Consolidate phys_segment and hw_segment limitsMartin K. Petersen2010-02-261-2/+1
| | | | | | | | | | | | | | | | | | Except for SCSI no device drivers distinguish between physical and hardware segment limits. Consolidate the two into a single segment limit. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* | block: Rename blk_queue_max_sectors to blk_queue_max_hw_sectorsMartin K. Petersen2010-02-261-1/+1
|/ | | | | | | | | | | | | The block layer calling convention is blk_queue_<limit name>. blk_queue_max_sectors predates this practice, leading to some confusion. Rename the function to appropriately reflect that its intended use is to set max_hw_sectors. Also introduce a temporary wrapper for backwards compability. This can be removed after the merge window is closed. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* Revert "ide: try to use PIO Mode 0 during probe if possible"David S. Miller2009-11-061-9/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 6029336426a2b43e4bc6f4a84be8789a047d139e. Ok, we really do need to revert this, even with Bart's sis5513.c fix in there. The problem is that several driver's ->set_pio_mode() method depends upon the drive->media type being set properly. Most of them use this to enable prefetching, which can only be done for disk media. But the commit being reverted here calls ->set_pio_mode() before it's setup. Actually it considers everything disk because that is the default media type set by ide_port_init_devices_data(). The set of drivers that depend upon the media type in their ->set_pio_method() are: drivers/ide/alim15x3.c drivers/ide/it8172.c drivers/ide/it8213.c drivers/ide/pdc202xx_old.c drivers/ide/piix.c drivers/ide/qd65xx.c drivers/ide/sis5513.c drivers/ide/slc90e66.c And it is possible that we could fix this by guarding the prefetching and other media dependent setting changes with a test on IDE_PFLAG_PROBING in hwif->port_flags, that's simply too risky for 2.6.32-rcX and -stable. Signed-off-by: David S. Miller <davem@davemloft.net>
* Revert "Revert "ide: try to use PIO Mode 0 during probe if possible""Bartlomiej Zolnierkiewicz2009-10-071-0/+9
| | | | | | | | | | | | This reverts commit 24df31acaff8465d797f0006437b45ad0f2a5cb1. The root cause of reported system hangs was (now fixed) sis5513 bug and not "ide: try to use PIO Mode 0 during probe if possible" change (commit 6029336426a2b43e4bc6f4a84be8789a047d139e) so the revert was incorrect (it simply replaced one regression with the other one). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Revert "ide: try to use PIO Mode 0 during probe if possible"David S. Miller2009-10-041-9/+0
| | | | | | | | | | This reverts commit 6029336426a2b43e4bc6f4a84be8789a047d139e. Based upon a report by David Fries, wherein his system hangs on bootup with sis5513 controller, right after the CDROM is registered by ide-cd.c and the TOC is first read. Signed-off-by: David S. Miller <davem@davemloft.net>
* trivial: remove unnecessary semicolonsJoe Perches2009-09-211-1/+1
| | | | | Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* ide: allow ide_dev_read_id() to be called from the IRQ contextBartlomiej Zolnierkiewicz2009-08-071-10/+21
| | | | | | | | | | | | | | | | * Un-static __ide_wait_stat(). * Allow ide_dev_read_id() helper to be called from the IRQ context by adding irq_ctx flag and using mdelay()/__ide_wait_stat() when needed. * Switch ide_driveid_update() to set irq_ctx flag. This change is needed for the consecutive patch which fixes races in handling of user-space SET XFER commands but for improved bisectability and clarity it is better to do it in a separate patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ide: fix handling of unexpected IRQs vs request_irq()Bartlomiej Zolnierkiewicz2009-06-241-3/+20
| | | | | | | | | | | | | | | | Add ide_host_enable_irqs() helper and use it in ide_host_register() before registering ports. Then remove no longer needed IRQ unmasking from in init_irq(). This should fix the problem with "screaming" shared IRQ on the first port (after request_irq() call while we have the unexpected IRQ pending on the second port) which was uncovered by my rework of the serialized interfaces support. Reported-by: Frans Pop <elendil@planet.nl> Tested-by: Frans Pop <elendil@planet.nl> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'for-2.6.31' of ↵Linus Torvalds2009-06-201-2/+15
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6 * 'for-2.6.31' of git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: (34 commits) ide-cd: prevent null pointer deref via cdrom_newpc_intr ide: BUG() on unknown requests ide: filter out invalid DMA xfer mode changes in HDIO_DRIVE_CMD ioctl handler ide: do not access ide_drive_t 'drive_data' field directly sl82c105: implement test_irq() method siimage: implement test_irq() method pdc202xx_old: implement test_irq() method (take 2) cmd64x: implement test_irq() method cmd640: implement test_irq() method ide: move ack_intr() method into 'struct ide_port_ops' (take 2) ide: move IRQ clearing from ack_intr() method to clear_irq() method (take 2) siimage: use ide_dma_test_irq() (take 2) cmd64x: implement clear_irq() method (take 2) ide: call clear_irq() method in ide_timer_expiry() sgiioc4: coding style cleanup ide: don't enable IORDY at a probe time ide: IORDY handling fixes ata: add ata_id_pio_need_iordy() helper (v2) ide-tape: fix build issue ide: unify interrupt reason checking ...
| * ide: move ack_intr() method into 'struct ide_port_ops' (take 2)Sergei Shtylyov2009-06-151-1/+0
| | | | | | | | | | | | | | | | Move the ack_intr() method into 'struct ide_port_ops', also renaming it to test_irq() while at it... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide: don't enable IORDY at a probe timeBartlomiej Zolnierkiewicz2009-06-151-1/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Add 'unsigned long port_flags' field to ide_hwif_t. * Add IDE_PFLAG_PROBING port flag and keep it set during probing. * Fix ide_pio_need_iordy() to not enable IORDY at a probe time (IORDY may lead to controller lock up on certain controllers if the port is not occupied). Loosely based on the recent libata's fix by Tejun, thanks to Alan for the hint that IDE may also need it. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* | ide: remove driver_data direct access of struct deviceGreg Kroah-Hartman2009-06-151-2/+2
|/ | | | | | | | | | | | | In the near future, the driver core is going to not allow direct access to the driver_data pointer in struct device. Instead, the functions dev_get_drvdata() and dev_set_drvdata() should be used. These functions have been around since the beginning, so are backwards compatible with all older kernel versions. Cc: linux-ide@vger.kernel.org Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* ide: fix PowerMac bootup oopsHugh Dickins2009-06-101-26/+21
| | | | | | | | | | | | | | | | | | | | | PowerMac bootup with CONFIG_IDE=y oopses in ide_pio_cycle_time(): because "ide: try to use PIO Mode 0 during probe if possible" causes pmac_ide_set_pio_mode() to be called before drive->id has been set. Bart points out other places which now need drive->id set earlier, so follow his advice to allocate it in ide_port_alloc_devices() (using kzalloc_node, without error message, as when allocating drive) and memset it for reuse in ide_port_init_devices_data(). Fixed in passing: ide_host_alloc() was missing ide_port_free_devices() from an error path. Signed-off-by: Hugh Dickins <hugh.dickins@tiscali.co.uk> Cc: Joao Ramos <joao.ramos@inov.pt> Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: skip probe if there are no devices on the port (v2)Bartlomiej Zolnierkiewicz2009-06-081-3/+9
| | | | | | | | | | In ide_probe_port() skip probe if ide_port_wait_ready() returns -ENODEV and print error message instead of debug one if it returns -EBUSY. v2: Fix the default 'rc' value. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: respect quirk_drives[] list on all controllersBartlomiej Zolnierkiewicz2009-06-071-0/+2
| | | | | | | | | | | * Add ide_check_nien_quirk_list() helper to the core code and then use it in ide_port_tune_devices(). * Remove no longer needed ->quirkproc methods from hpt366.c and pdc202xx_{new,old}.c. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Merge branch 'for-linus' into for-nextBartlomiej Zolnierkiewicz2009-05-221-3/+6
|\
| * ide: report timeouts in ide_busy_sleep()Bartlomiej Zolnierkiewicz2009-05-221-3/+6
| | | | | | | | | | | | | | * change 'hwif' argument to 'drive' * report an error on timeout Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* | ide: remove hw_regs_t typedefBartlomiej Zolnierkiewicz2009-05-171-5/+5
| | | | | | | | | | | | | | | | | | Remove hw_regs_t typedef and rename struct hw_regs_s to struct ide_hw. There should be no functional changes caused by this patch. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* | ide: pass number of ports to ide_host_{alloc,add}() (v2)Bartlomiej Zolnierkiewicz2009-05-171-4/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Pass number of ports to ide_host_{alloc,add}() and then update all users accordingly. v2: - drop no longer needed NULL initializers in buddha.c, cmd640.c and gayle.c (noticed by Sergei) There should be no functional changes caused by this patch. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* | ide: remove chipset field from hw_regs_tBartlomiej Zolnierkiewicz2009-05-171-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Convert host drivers that still use hw_regs_t's chipset field to use the one in struct ide_port_info instead. * Move special handling of ide_pci chipset type from ide_hw_configure() to ide_init_port(). * Remove chipset field from hw_regs_t. While at it: - remove stale comment in delkin_cb.c There should be no functional changes caused by this patch. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* | ide: replace special_t typedef by IDE_SFLAG_* flagsBartlomiej Zolnierkiewicz2009-05-171-3/+3
| | | | | | | | | | | | | | | | | | | | | | Replace: - special_t typedef by IDE_SFLAG_* flags - 'special_t special' ide_drive_t's field by 'u8 special_flags' one There should be no functional changes caused by this patch. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* | ide: try to use PIO Mode 0 during probe if possibleJoao Ramos2009-05-171-0/+9
|/ | | | | | | | | | Initially set PIO Mode 0 for all host drivers that have a 'set_pio_mode' method before the IDE core figures out the most suited PIO mode for the attached device. Signed-off-by: Joao Ramos <joao.ramos@inov.pt> Cc: Sergei Shtylyov <sshtylyov@ru.montavista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: refactor tf_read() methodSergei Shtylyov2009-04-081-6/+3
| | | | | | | | | | | | | | Simplify tf_read() method, making it deal only with 'struct ide_taskfile' and the validity flags that the upper layer passes, and factoring out the code that deals with the high order bytes into ide_tf_readback() to be called from the only two functions interested, ide_complete_cmd() and ide_dump_sector(). This should stop the needless code duplication in this method and so make it about twice smaller than it was; along with simplifying the setup for the method call, this should save both time and space... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: refactor tf_load() methodSergei Shtylyov2009-04-081-5/+3
| | | | | | | | | | | | | Simplify tf_load() method, making it deal only with 'struct ide_taskfile' and the validity flags that the upper layer passes, and moving the code that deals with the high order bytes into the only function interested, do_rw_taskfile(). This should stop the needless code duplication in this method and so make it about twice smaller than it was; along with simplifying the setup for the method call, this should save both time and space... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: replace IDE_TFLAG_* flags by IDE_VALID_*Sergei Shtylyov2009-04-081-2/+2
| | | | | | | | | | | Replace IDE_TFLAG_{IN|OUT}_* flags meaning to the taskfile register validity on input/output by the IDE_VALID_* flags and introduce 4 symmetric 8-bit register validity indicator subfields, 'valid.{input/output}.{tf|hob}', into the 'struct ide_cmd' instead of using the 'tf_flags' field for that purpose (this field can then be turned from 32-bit into 8-bit one). Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: Fix host drivers that need IRQF_SHAREDGeert Uytterhoeven2009-04-081-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 255115fb35f80735c21a1cbe9809e9795a3af26e ("ide: allow host drivers to specify IRQ flags") added irq_flags fields to struct ide_port_info and struct ide_host. Drivers can now set ide_port_info.irq_flags = IRQF_SHARED, while init_irq() passes ide_host.irq_flags to request_irq(). Unfortunately ide_host.irq_flags is never set, causing (on ARAnyM): | Uniform Multi-Platform E-IDE driver | ide: Falcon IDE controller | Probing IDE interface ide0... | hda: Sarge m68k, ATA DISK drive | init_irq: sa = 0 | ide0: disabled, unable to get IRQ 15 | ide0: failed to initialize IDE interface | ide0: disabling port Solve this by copying ide_port_info.irq_flags to ide_host.irq_flags in ide_host_alloc(). This bug probably affects the following IDE host drivers: - buddha - delkin_cb - falconide - gayle - ide-cs - macide - q40ide - scc_pata - sgiioc4 Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: inline SELECT_DRIVE()Sergei Shtylyov2009-03-311-7/+8
| | | | | | | | Since SELECT_DRIVE() has boiled down to a mere dev_select() method call, it now makes sense to just inline it... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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