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| author | Julien Ducourthial <jducourt@free.fr> | 2012-05-09 00:00:06 +0200 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2012-06-10 14:42:05 +0100 |
| commit | a549123336c6afafcf2fd2eea7248a8c9ac3385f (patch) | |
| tree | bf1e9bc96965a91c01433d840947977934ccb1cc /net/core/dev.c | |
| parent | ba3d9c0eb1ed88c156e49eadcb1e9ec22cfc2fed (diff) | |
| download | kernel_samsung_smdk4412-a549123336c6afafcf2fd2eea7248a8c9ac3385f.zip kernel_samsung_smdk4412-a549123336c6afafcf2fd2eea7248a8c9ac3385f.tar.gz kernel_samsung_smdk4412-a549123336c6afafcf2fd2eea7248a8c9ac3385f.tar.bz2 | |
r8169: fix unsigned int wraparound with TSO
[ Upstream commit 477206a018f902895bfcd069dd820bfe94c187b1 ]
The r8169 may get stuck or show bad behaviour after activating TSO :
the net_device is not stopped when it has no more TX descriptors.
This problem comes from TX_BUFS_AVAIL which may reach -1 when all
transmit descriptors are in use. The patch simply tries to keep positive
values.
Tested with 8111d(onboard) on a D510MO, and with 8111e(onboard) on a
Zotac 890GXITX.
Signed-off-by: Julien Ducourthial <jducourt@free.fr>
Acked-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'net/core/dev.c')
0 files changed, 0 insertions, 0 deletions