]> git.baikalelectronics.ru Git - kernel.git/commit
bnx2x: Eliminate duplicate barriers on weakly-ordered archs
authorSinan Kaya <okaya@codeaurora.org>
Sun, 25 Mar 2018 14:39:18 +0000 (10:39 -0400)
committerDavid S. Miller <davem@davemloft.net>
Mon, 26 Mar 2018 16:47:55 +0000 (12:47 -0400)
commit47383e4e9699ef74ecb736a643b70a1776d024dc
tree5f7d9a0dba0a4879a03776e8f41890d4feb6bf23
parent9647100fe70301c0d2029dd35ee01e8e07b424cf
bnx2x: Eliminate duplicate barriers on weakly-ordered archs

Code includes wmb() followed by writel(). writel() already has a
barrier on some architectures like arm64.

This ends up CPU observing two barriers back to back before executing
the register write.

Since code already has an explicit barrier call, changing writel() to
writel_relaxed().

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c