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bnx2x: Eliminate duplicate barriers on weakly-ordered archs

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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>
This commit is contained in:
Sinan Kaya 2018-03-25 10:39:18 -04:00 • committed by David S. Miller
commit 7f883c774e
6 changed files with 17 additions and 11 deletions
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