diff mbox series

[net,4/5] net/mlx5e: Correctly report errors for ethtool rx flows

Message ID 20240808144107.2095424-5-tariqt@nvidia.com (mailing list archive)
State Accepted
Commit cbc796be1779c4dbc9a482c7233995e2a8b6bfb3
Delegated to: Netdev Maintainers
Headers show
Series mlx5 misc fixes 2024-08-08 | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag present in non-next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 29 this patch: 29
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers warning 1 maintainers not CCed: linux-rdma@vger.kernel.org
netdev/build_clang success Errors and warnings before: 29 this patch: 29
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success Fixes tag looks correct
netdev/build_allmodconfig_warn success Errors and warnings before: 29 this patch: 29
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 8 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0
netdev/contest success net-next-2024-08-09--09-00 (tests: 705)

Commit Message

Tariq Toukan Aug. 8, 2024, 2:41 p.m. UTC 
From: Cosmin Ratiu <cratiu@nvidia.com>

Previously, an ethtool rx flow with no attrs would not be added to the
NIC as it has no rules to configure the hw with, but it would be
reported as successful to the caller (return code 0). This is confusing
for the user as ethtool then reports "Added rule $num", but no rule was
actually added.

This change corrects that by instead reporting these wrong rules as
-EINVAL.

Fixes: b29c61dac3a2 ("net/mlx5e: Ethtool steering flow validation refactoring")
Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com>
Reviewed-by: Saeed Mahameed <saeedm@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c
index 3eccdadc0357..773624bb2c5d 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c
@@ -734,7 +734,7 @@  mlx5e_ethtool_flow_replace(struct mlx5e_priv *priv,
 	if (num_tuples <= 0) {
 		netdev_warn(priv->netdev, "%s: flow is not valid %d\n",
 			    __func__, num_tuples);
-		return num_tuples;
+		return num_tuples < 0 ? num_tuples : -EINVAL;
 	}
 
 	eth_ft = get_flow_table(priv, fs, num_tuples);