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virtchnl: Fix layout of RSS structures 

[ Upstream commit 22f8b5df88 ]

Remove padding from RSS structures. Previous layout
could lead to unwanted compiler optimizations
in loops when iterating over key and lut arrays.

Fixes: 65ece6de01 ("virtchnl: Add missing explicit padding to structures")
Signed-off-by: Norbert Ciosek <norbertx.ciosek@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Norbert Ciosek 2021-01-28 10:17:02 -08:00 committed by Greg Kroah-Hartman
parent 95d58bf5ed
commit d4d4c6a4ca
1 changed files with 0 additions and 2 deletions
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2
include/linux/avf/virtchnl.h
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@ -476,7 +476,6 @@ struct virtchnl_rss_key {
u16 vsi_id;
u16 key_len;
u8 key[1]; /* RSS hash key, packed bytes */
u8 pad[1];
};
VIRTCHNL_CHECK_STRUCT_LEN(6, virtchnl_rss_key);
@ -485,7 +484,6 @@ struct virtchnl_rss_lut {
u16 vsi_id;
u16 lut_entries;
u8 lut[1]; /* RSS lookup table */
u8 pad[1];
};
VIRTCHNL_CHECK_STRUCT_LEN(6, virtchnl_rss_lut);