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sfc: ensure an extack msg from efx_tc_flower_replace_foreign EOPNOTSUPPs

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There were a few places where no extack error message was set, or the
 extack was not forwarded to callees, potentially resulting in a return
 of -EOPNOTSUPP with no additional information.
Make sure to populate the error message in these cases.  In practice
 this does us no good as TC indirect block callbacks don't come with an
 extack to fill in; but maybe they will someday and when debugging it's
 possible to provide a fake extack and emit its message to the console.

Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com>
Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Edward Cree 2023-10-02 16:44:43 +01:00 committed by David S. Miller
parent 937a0feab4
commit f96622fd3a
1 changed files with 4 additions and 2 deletions
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6
drivers/net/ethernet/sfc/tc.c
View file

@ -1580,7 +1580,7 @@ static int efx_tc_flower_replace_foreign(struct efx_nic *efx,
/* Parse match */
memset(&match, 0, sizeof(match));
rc = efx_tc_flower_parse_match(efx, fr, &match, NULL);
rc = efx_tc_flower_parse_match(efx, fr, &match, extack);
if (rc)
return rc;
/* The rule as given to us doesn't specify a source netdevice.
@ -1629,6 +1629,7 @@ static int efx_tc_flower_replace_foreign(struct efx_nic *efx,
if (match.mask.ct_state_est && !match.value.ct_state_est) {
if (match.value.tcp_syn_fin_rst) {
/* Can't offload this combination */
NL_SET_ERR_MSG_MOD(extack, "TCP flags and -est conflict for offload");
rc = -EOPNOTSUPP;
goto release;
}
@ -1655,7 +1656,7 @@ static int efx_tc_flower_replace_foreign(struct efx_nic *efx,
goto release;
}
rc = efx_mae_match_check_caps(efx, &match.mask, NULL);
rc = efx_mae_match_check_caps(efx, &match.mask, extack);
if (rc)
goto release;
@ -1743,6 +1744,7 @@ static int efx_tc_flower_replace_foreign(struct efx_nic *efx,
goto release;
}
if (!efx_tc_flower_action_order_ok(act, EFX_TC_AO_COUNT)) {
NL_SET_ERR_MSG_MOD(extack, "Count action violates action order (can't happen)");
rc = -EOPNOTSUPP;
goto release;
}