kernel/linux.git/arch/m68k/atari/stdma.c, branch v6.19.11

m68k: atari: Document data parameter of stdma_try_lock()

2023-10-06T08:03:02+00:00

When building with W=1: arch/m68k/atari/stdma.c:69: warning: Function parameter or member 'data' not described in 'stdma_try_lock' Fix this by documenting the data parameter. Signed-off-by: Geert Uytterhoeven Acked-by: Arnd Bergmann Link: https://lore.kernel.org/r/a69dd3ab0a224e40ce5ce7b30981e2d7a0285a83.1694613528.git.geert@linux-m68k.org

block: remove genhd.h

2022-02-02T14:49:59+00:00

There is no good reason to keep genhd.h separate from the main blkdev.h header that includes it. So fold the contents of genhd.h into blkdev.h and remove genhd.h entirely. Signed-off-by: Christoph Hellwig Reviewed-by: Chaitanya Kulkarni Reviewed-by: Martin K. Petersen Link: https://lore.kernel.org/r/20220124093913.742411-4-hch@lst.de Signed-off-by: Jens Axboe

m68k/atari: Remove obsolete IRQ_TYPE_*

2015-01-15T12:44:51+00:00

IRQ_TYPE_SLOW, IRQ_TYPE_FAST, and IRQ_TYPE_PRIO are no longer used by the Atari platform interrupt code since commit 734085651c9b80aa ("[PATCH] m68k: convert atari irq code") in v2.6.18-rc1, so drop them. Note that their values have been reused for different purposes (IRQ_TYPE_NONE, IRQ_TYPE_EDGE_RISING, and IRQ_TYPE_EDGE_FALLING) since commit 6a6de9ef5850d063 ("[PATCH] genirq: core") in v2.6.18-rc1. Signed-off-by: Geert Uytterhoeven

atari_scsi: Fix atari_scsi deadlocks on Falcon

2014-11-20T08:11:13+00:00

Don't disable irqs when waiting for the ST DMA "lock"; its release may require an interrupt. Introduce stdma_try_lock() for use in soft irq context. atari_scsi now tells the SCSI mid-layer to defer queueing a command if the ST DMA lock is not available, as per Michael's patch: http://marc.info/?l=linux-m68k&m=139095335824863&w=2 The falcon_got_lock variable is race prone: we can't disable IRQs while waiting to acquire the lock, so after acquiring it there must be some interval during which falcon_got_lock remains false. Introduce stdma_is_locked_by() to replace falcon_got_lock. The falcon_got_lock tests in the EH handlers are incorrect these days. It can happen that an EH handler is called after a command completes normally. Remove these checks along with falcon_got_lock. Also remove the complicated and racy fairness wait queues. If fairness is an issue (when SCSI competes with IDE for the ST DMA interrupt), the solution is likely to be a lower value for host->can_queue. Signed-off-by: Finn Thain Reviewed-by: Hannes Reinecke Tested-by: Michael Schmitz Acked-by: Geert Uytterhoeven Signed-off-by: Christoph Hellwig

m68k/atari: Do not use "/" in interrupt names

2011-05-19T16:19:10+00:00

It may trigger a warning in fs/proc/generic.c:__xlate_proc_name() when trying to add an entry for the interrupt handler to sysfs. Signed-off-by: Geert Uytterhoeven

m68k: atari core - Kill warn_unused_result warnings

2009-01-12T19:56:36+00:00

warning: ignoring return value of 'request_irq', declared with attribute warn_unused_result Signed-off-by: Geert Uytterhoeven

m68k: kill arch/m68k/atari/atari_ksyms.c

2008-02-05T17:44:24+00:00

EXPORT_SYMBOL's belong to the actual code. Signed-off-by: Adrian Bunk Signed-off-by: Geert Uytterhoeven Cc: Roman Zippel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] Scheduled removal of SA_xxx interrupt flags fixups

2007-02-14T16:09:54+00:00

The obsolete SA_xxx interrupt flags have been used despite the scheduled removal. Fixup the remaining users. Signed-off-by: Thomas Gleixner Acked-by: Ingo Molnar Cc: "Luck, Tony" Cc: Roman Zippel Cc: Geert Uytterhoeven Cc: Jeff Garzik Cc: Wim Van Sebroeck Cc: Roland Dreier Cc: Alessandro Zummo Cc: James Bottomley Cc: Greg KH Cc: Dave Airlie Cc: James Simmons Cc: "Antonino A. Daplas" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] m68k/Atari: 2.6.18 Atari IDE interrupt needs SA_SHIRQ

2006-12-09T17:41:18+00:00

Atari IDE: The interrupt needs SA_SHIRQ now to get registered. Signed-off-by: Michael Schmitz Signed-off-by: Geert Uytterhoeven Signed-off-by: Linus Torvalds

IRQ: Use the new typedef for interrupt handler function pointers

2006-10-09T11:19:47+00:00

Use the new typedef for interrupt handler function pointers rather than actually spelling out the full thing each time. This was scripted with the following small shell script: #!/bin/sh egrep -nHrl -e 'irqreturn_t[ ]*[(][*]' $* | while read i do echo $i perl -pi -e 's/irqreturn_t\s*[(]\s*[*]\s*([_a-zA-Z0-9]*)\s*[)]\s*[(]\s*int\s*,\s*void\s*[*]\s*[)]/irq_handler_t \1/g' $i || exit $? done Signed-Off-By: David Howells