Re: [net 2/3] net: do not do gso for CHECKSUM_UNNECESSARY in netif_needs_gso

On Sat, 2012-03-17 at 02:08 -0700, Jeff Kirsher wrote:

From: Yi Zou <redacted>

This is related to fixing the bug of dropping FCoE frames when disabling tx ip
checksum by 'ethtool -K ethx tx off'. The FCoE protocol stack driver would
use CHECKSUM_UNNECESSARY on tx path instead of CHECKSUM_PARTIAL (as indicated in
the 2/2 of this series). To do so, netif_needs_gso() has to be changed here to
not do gso for both CHECKSUM_PARTIAL and CHECKSUM_UNNECESSARY.

[...]

This should also be documented as valid in include/linux/skbuff.h,
though I don't think the fix should be held up for that.

Ben.

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Ben Hutchings, Staff Engineer, Solarflare
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