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authorDaniel Zahka <daniel.zahka@gmail.com>2024-10-03 09:23:10 -0700
committerJakub Kicinski <kuba@kernel.org>2024-10-04 12:34:13 -0700
commit5c2ab978f9c90384198000a032d10382f44c3530 (patch)
tree5502d5e4c587c57ac959f0f55e82927a6d9e3342
parent00110c5eeb7c0a429e39dad2986753dd295e2568 (diff)
ethtool: rss: fix rss key initialization warning
This warning is emitted when a driver does not default populate an rss key when one is not provided from userspace. Some devices do not support individual rss keys per context. For these devices, it is ok to leave the key zeroed out in ethtool_rxfh_context. Do not warn on zeroed key when ethtool_ops.rxfh_per_ctx_key == 0. Signed-off-by: Daniel Zahka <daniel.zahka@gmail.com> Link: https://patch.msgid.link/20241003162310.1310576-1-daniel.zahka@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-rw-r--r--net/ethtool/ioctl.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ethtool/ioctl.c b/net/ethtool/ioctl.c
index 65cfe76dafbe..04b34dc6b369 100644
--- a/net/ethtool/ioctl.c
+++ b/net/ethtool/ioctl.c
@@ -1505,6 +1505,7 @@ static noinline_for_stack int ethtool_set_rxfh(struct net_device *dev,
extack);
/* Make sure driver populates defaults */
WARN_ON_ONCE(!ret && !rxfh_dev.key &&
+ ops->rxfh_per_ctx_key &&
!memchr_inv(ethtool_rxfh_context_key(ctx),
0, ctx->key_size));
} else if (rxfh_dev.rss_delete) {