David Ahern 7ab127c8e1 tools/accounting/getdelays.c: fix netlink attribute length ... commit 4054ab64e29bb05b3dfe758fff3c38a74ba753bb upstream. A recent change to the netlink code: 6e237d099f ("netlink: Relax attr validation for fixed length types") logs a warning when programs send messages with invalid attributes (e.g., wrong length for a u32). Yafang reported this error message for tools/accounting/getdelays.c. send_cmd() is wrongly adding 1 to the attribute length. As noted in include/uapi/linux/netlink.h nla_len should be NLA_HDRLEN + payload length, so drop the +1. Fixes: 9e06d3f9f6 ("per task delay accounting taskstats interface: documentation fix") Reported-by: Yafang Shao <laoar.shao@gmail.com> Signed-off-by: David Ahern <dsahern@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Tested-by: Yafang Shao <laoar.shao@gmail.com> Cc: Johannes Berg <johannes@sipsolutions.net> Cc: Shailabh Nagar <nagar@watson.ibm.com> Cc: <stable@vger.kernel.org> Link: http://lkml.kernel.org/r/20200327173111.63922-1-dsahern@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-04-13 10:45:10 +02:00
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getdelays.c	tools/accounting/getdelays.c: fix netlink attribute length	2020-04-13 10:45:10 +02:00
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