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ethtool: rss: fix falsely ignoring indir table updates

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rss_set_prep_indir() compares the new indirection table against the
current one to determine whether any update is needed. The memcmp
call passes data->indir_size as the length argument, but indir_size
is the number of u32 entries, not the byte count.

Fixes: c0ae03588b ("ethtool: rss: initial RSS_SET (indirection table handling)")
Link: https://patch.msgid.link/20260522230647.1705600-4-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski
2026-05-22 16:06:44 -07:00
parent 3e6c6e9782
commit 8d60141a32
1 changed files with 1 additions and 1 deletions
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net/ethtool/rss.c
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@@ -686,7 +686,7 @@ rss_set_prep_indir(struct net_device *dev, struct genl_info *info,
ethtool_rxfh_indir_default(i, num_rx_rings);
}
*mod |= memcmp(rxfh->indir, data->indir_table, data->indir_size);
*mod |= memcmp(rxfh->indir, data->indir_table, alloc_size);
return user_size;