Sinan Kaya 6d2e1a8d5e net: ena: Eliminate duplicate barriers on weakly-ordered archs ... Code includes barrier() 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. Create a new wrapper function with relaxed write operator. Use the new wrapper when a write is following a barrier(). Since code already has an explicit barrier call, changing writel() to writel_relaxed() and adding mmiowb() for ordering protection. Signed-off-by: Sinan Kaya <okaya@codeaurora.org> Signed-off-by: David S. Miller <davem@davemloft.net>		2018-03-26 12:47:56 -04:00
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ena	net: ena: Eliminate duplicate barriers on weakly-ordered archs	2018-03-26 12:47:56 -04:00
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