r8169: don't read interrupt mask register in interrupt handler

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After the original patch network starts to crash on heavy load.
It's not fully clear why this additional register read has such side
effects, but removing it fixes the issue.

Thanks also to Alex for his contribution and hints.

[0] https://marc.info/?t=155268170400002&r=1&w=2

Fixes: e782410ed2 ("r8169: improve spurious interrupt detection")
Reported-by: VDR User <user.vdr@gmail.com>
Tested-by: VDR User <user.vdr@gmail.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Heiner Kallweit 2019-03-21 21:23:14 +01:00 • committed by David S. Miller

parent 5f543a54ee

commit c8248c6c1a

1 changed files with 4 additions and 2 deletions

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drivers/net/ethernet/realtek/r8169.c

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