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| author |   Ido Schimmel <idosch@nvidia.com> | 2021-03-24 21:43:32 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2021-03-24 16:44:31 -0700 |
| commit | e43accba9b071dcd106b5e7643b1b106a158cbb1 (patch) | |
| tree | bfd68e49ca183c170010f136150f3d163ecc11e9 /include | |
| parent | math: Export mul_u64_u64_div_u64 (diff) | |
| download | linux-dev-e43accba9b071dcd106b5e7643b1b106a158cbb1.tar.xz linux-dev-e43accba9b071dcd106b5e7643b1b106a158cbb1.zip | |
psample: Fix user API breakage
Cited commit added a new attribute before the existing group reference
count attribute, thereby changing its value and breaking existing
applications on new kernels.
Before:
# psample -l
libpsample ERROR psample_group_foreach: failed to recv message: Operation not supported
After:
# psample -l
Group Num Refcount Group Seq
1 1 0
Fix by restoring the value of the old attribute and remove the
misleading comments from the enumerator to avoid future bugs.
Cc: stable@vger.kernel.org
Fixes: d8bed686ab96 ("net: psample: Add tunnel support")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reported-by: Adiel Bidani <adielb@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/uapi/linux/psample.h | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/include/uapi/linux/psample.h b/include/uapi/linux/psample.h index aea26ab1431c..bff5032c98df 100644 --- a/include/uapi/linux/psample.h +++ b/include/uapi/linux/psample.h @@ -3,7 +3,6 @@ #define __UAPI_PSAMPLE_H enum { - /* sampled packet metadata */ PSAMPLE_ATTR_IIFINDEX, PSAMPLE_ATTR_OIFINDEX, PSAMPLE_ATTR_ORIGSIZE, @@ -11,10 +10,8 @@ enum { PSAMPLE_ATTR_GROUP_SEQ, PSAMPLE_ATTR_SAMPLE_RATE, PSAMPLE_ATTR_DATA, - PSAMPLE_ATTR_TUNNEL, - - /* commands attributes */ PSAMPLE_ATTR_GROUP_REFCOUNT, + PSAMPLE_ATTR_TUNNEL, __PSAMPLE_ATTR_MAX }; |