net: netpoll: Initialize UDP checksum field before checksumming

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commit f1fce08e63 ("netpoll: Eliminate redundant assignment") removed
the initialization of the UDP checksum, which was wrong and broke
netpoll IPv6 transmission due to bad checksumming.

udph->check needs to be set before calling csum_ipv6_magic().

Fixes: f1fce08e63 ("netpoll: Eliminate redundant assignment")
Signed-off-by: Breno Leitao <leitao@debian.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250620-netpoll_fix-v1-1-f9f0b82bc059@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Breno Leitao 2025-06-20 11:48:55 -07:00 • committed by Jakub Kicinski

parent 95b6759a81

commit f599020702

1 changed files with 1 additions and 1 deletions

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net/core/netpoll.c

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