linux_dsm_epyc7002/drivers/net/ethernet/intel/igb
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
..
e1000_82575.c igb: e1000_82575: Mark expected switch fall-through 2018-08-07 17:54:20 -07:00
e1000_82575.h net: intel: Cleanup the copyright/license headers 2018-04-27 14:00:04 -04:00
e1000_defines.h igb: Change RXPBSIZE size when setting Qav mode 2018-12-20 11:45:10 -08:00
e1000_hw.h net: intel: Cleanup the copyright/license headers 2018-04-27 14:00:04 -04:00
e1000_i210.c igb: fix uninitialized variables 2018-11-28 08:27:47 -08:00
e1000_i210.h net: intel: Cleanup the copyright/license headers 2018-04-27 14:00:04 -04:00
e1000_mac.c net: intel: Cleanup the copyright/license headers 2018-04-27 14:00:04 -04:00
e1000_mac.h net: intel: Cleanup the copyright/license headers 2018-04-27 14:00:04 -04:00
e1000_mbx.c net: intel: Cleanup the copyright/license headers 2018-04-27 14:00:04 -04:00
e1000_mbx.h net: intel: Cleanup the copyright/license headers 2018-04-27 14:00:04 -04:00
e1000_nvm.c net: intel: Cleanup the copyright/license headers 2018-04-27 14:00:04 -04:00
e1000_nvm.h net: intel: Cleanup the copyright/license headers 2018-04-27 14:00:04 -04:00
e1000_phy.c igb: e1000_phy: Mark expected switch fall-through 2018-08-07 17:54:20 -07:00
e1000_phy.h net: intel: Cleanup the copyright/license headers 2018-04-27 14:00:04 -04:00
e1000_regs.h net: intel: Cleanup the copyright/license headers 2018-04-27 14:00:04 -04:00
igb_ethtool.c Revert "igb: reduce CPU0 latency when updating statistics" 2019-01-15 13:33:44 -08:00
igb_hwmon.c net: intel: Cleanup the copyright/license headers 2018-04-27 14:00:04 -04:00
igb_main.c drivers: Remove explicit invocations of mmiowb() 2019-04-08 12:01:02 +01:00
igb_ptp.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-11-11 17:57:54 -08:00
igb.h Revert "igb: reduce CPU0 latency when updating statistics" 2019-01-15 13:33:44 -08:00
Makefile net: intel: Cleanup the copyright/license headers 2018-04-27 14:00:04 -04:00