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authorSinan Kaya <[email protected]>2018-03-25 10:39:16 -0400
committerDavid S. Miller <[email protected]>2018-03-26 12:47:55 -0400
commitf9442ac498a86b1b0ec383a332be2635fbb1ed98 (patch)
tree265762dc52f5a1e0bc31bba3e34df3c4dcea04e6 /tools/perf/scripts/python
parent3c95c567322e1dfaa7e0348171181aaf63aa6049 (diff)
qlcnic: 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 <[email protected]> Acked-by: Manish Chopra <[email protected]> Signed-off-by: David S. Miller <[email protected]>
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