linux/drivers/ssb
Will Deacon fb24ea52f7 drivers: Remove explicit invocations of mmiowb()
mmiowb() is now implied by spin_unlock() on architectures that require
it, so there is no reason to call it from driver code. This patch was
generated using coccinelle:

	@mmiowb@
	@@
	- mmiowb();

and invoked as:

$ for d in drivers include/linux/qed sound; do \
spatch --include-headers --sp-file mmiowb.cocci --dir $d --in-place; done

NOTE: mmiowb() has only ever guaranteed ordering in conjunction with
spin_unlock(). However, pairing each mmiowb() removal in this patch with
the corresponding call to spin_unlock() is not at all trivial, so there
is a small chance that this change may regress any drivers incorrectly
relying on mmiowb() to order MMIO writes between CPUs using lock-free
synchronisation. If you've ended up bisecting to this commit, you can
reintroduce the mmiowb() calls using wmb() instead, which should restore
the old behaviour on all architectures other than some esoteric ia64
systems.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-04-08 12:01:02 +01:00
..
b43_pci_bridge.c ssb: Remove home-grown printk wrappers 2018-08-09 18:45:50 +03:00
bridge_pcmcia_80211.c ssb: Remove home-grown printk wrappers 2018-08-09 18:45:50 +03:00
driver_chipcommon_pmu.c ssb: Remove SSB_WARN_ON, SSB_BUG_ON and SSB_DEBUG 2018-08-09 18:47:47 +03:00
driver_chipcommon_sflash.c ssb: Remove home-grown printk wrappers 2018-08-09 18:45:50 +03:00
driver_chipcommon.c ssb: chipcommon: fix fall-through annotation 2018-10-05 11:37:20 +03:00
driver_extif.c ssb: Remove home-grown printk wrappers 2018-08-09 18:45:50 +03:00
driver_gige.c ssb: driver_gige: use true and false for boolean values 2018-08-09 18:15:46 +03:00
driver_gpio.c ssb: Remove SSB_WARN_ON, SSB_BUG_ON and SSB_DEBUG 2018-08-09 18:47:47 +03:00
driver_mipscore.c ssb: Remove home-grown printk wrappers 2018-08-09 18:45:50 +03:00
driver_pcicore.c ssb: Remove SSB_WARN_ON, SSB_BUG_ON and SSB_DEBUG 2018-08-09 18:47:47 +03:00
embedded.c ssb: Remove SSB_WARN_ON, SSB_BUG_ON and SSB_DEBUG 2018-08-09 18:47:47 +03:00
host_soc.c ssb: Remove SSB_WARN_ON, SSB_BUG_ON and SSB_DEBUG 2018-08-09 18:47:47 +03:00
Kconfig ssb: Remove SSB_WARN_ON, SSB_BUG_ON and SSB_DEBUG 2018-08-09 18:47:47 +03:00
main.c ssb: Remove SSB_WARN_ON, SSB_BUG_ON and SSB_DEBUG 2018-08-09 18:47:47 +03:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pci.c drivers: Remove explicit invocations of mmiowb() 2019-04-08 12:01:02 +01:00
pcihost_wrapper.c SSB / B44: fix WOL for BCM4401 2014-12-04 11:32:46 -05:00
pcmcia.c drivers: Remove explicit invocations of mmiowb() 2019-04-08 12:01:02 +01:00
scan.c ssb: Remove SSB_WARN_ON, SSB_BUG_ON and SSB_DEBUG 2018-08-09 18:47:47 +03:00
sdio.c ssb: Remove SSB_WARN_ON, SSB_BUG_ON and SSB_DEBUG 2018-08-09 18:47:47 +03:00
sprom.c ssb: Remove home-grown printk wrappers 2018-08-09 18:45:50 +03:00
ssb_private.h ssb: Remove SSB_WARN_ON, SSB_BUG_ON and SSB_DEBUG 2018-08-09 18:47:47 +03:00