CVS commit: src/sys/dev/pci

["Maxime Villard" <maxv%netbsd.org@localhost>]

Module Name:    src
Committed By:   maxv
Date:           Fri Jun  1 09:34:39 UTC 2018

Modified Files:
        src/sys/dev/pci: if_age.c if_alc.c if_ena.c

Log Message:
Fix M_PKTHDR use in if_alc, if_age and if_ena.

if_alc and if_age always put in _rxhead a M_PKTHDR-flagged mbuf, so the
flag must always be present. Instead of manually adding the flag, add a
KASSERT to ensure it is already there. If it weren't, there would be
memory corruptions.

Same in if_ena, but this one does not compile so we don't really care.

Also, use m_remove_pkthdr to remove the flag, instead of doing it
manually. This ensures the tags get freed (even though these drivers
don't seem to be using mtags).


To generate a diff of this commit:
cvs rdiff -u -r1.51 -r1.52 src/sys/dev/pci/if_age.c
cvs rdiff -u -r1.25 -r1.26 src/sys/dev/pci/if_alc.c
cvs rdiff -u -r1.2 -r1.3 src/sys/dev/pci/if_ena.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.