If a NIXLF is not attached to a PF/VF device then
nix_get_nixlf function fails and returns proper error
code. But npc_get_default_entry_action does not check it
and uses garbage value in subsequent calls. Fix this
by cheking the return value of nix_get_nixlf.
Fixes: 967db3529eca ("octeontx2-af: add support for multicast/promisc packet replication feature")
Signed-off-by: Subbaraya Sundeep <[email protected]>
---
v3 changes:
Added version history
v2 changes:
CCed AF driver maintainers and original author of patch
drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c
index 16cfc80..f658058 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c
@@ -389,7 +389,13 @@ static u64 npc_get_default_entry_action(struct rvu *rvu, struct npc_mcam *mcam,
int bank, nixlf, index;
/* get ucast entry rule entry index */
- nix_get_nixlf(rvu, pf_func, &nixlf, NULL);
+ if (nix_get_nixlf(rvu, pf_func, &nixlf, NULL)) {
+ dev_err(rvu->dev, "%s: nixlf not attached to pcifunc:0x%x\n",
+ __func__, pf_func);
+ /* Action 0 is drop */
+ return 0;
+ }
+
index = npc_get_nixlf_mcam_index(mcam, pf_func, nixlf,
NIXLF_UCAST_ENTRY);
bank = npc_get_bank(mcam, index);
--
2.7.4
Hello:
This patch was applied to netdev/net.git (main)
by David S. Miller <[email protected]>:
On Wed, 29 Nov 2023 11:11:48 +0530 you wrote:
> If a NIXLF is not attached to a PF/VF device then
> nix_get_nixlf function fails and returns proper error
> code. But npc_get_default_entry_action does not check it
> and uses garbage value in subsequent calls. Fix this
> by cheking the return value of nix_get_nixlf.
>
> Fixes: 967db3529eca ("octeontx2-af: add support for multicast/promisc packet replication feature")
> Signed-off-by: Subbaraya Sundeep <[email protected]>
>
> [...]
Here is the summary with links:
- [v3,net] octeontx2-af: Check return value of nix_get_nixlf before using nixlf
https://git.kernel.org/netdev/net/c/830139e7b691
You are awesome, thank you!
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