On 7/6/21 1:14 PM, Sasha Levin wrote:
From: gushengxian gushengxian@yulong.com
[ Upstream commit 9ea3e52c5bc8bb4a084938dc1e3160643438927a ]
"action" should not be NULL when it is referenced.
Signed-off-by: gushengxian 13145886936@163.com Signed-off-by: gushengxian gushengxian@yulong.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org
include/net/flow_offload.h | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/include/net/flow_offload.h b/include/net/flow_offload.h index dc5c1e69cd9f..69c9eabf8325 100644 --- a/include/net/flow_offload.h +++ b/include/net/flow_offload.h @@ -319,12 +319,14 @@ flow_action_mixed_hw_stats_check(const struct flow_action *action, if (flow_offload_has_one_action(action)) return true;
- flow_action_for_each(i, action_entry, action) {
if (i && action_entry->hw_stats != last_hw_stats) {NL_SET_ERR_MSG_MOD(extack, "Mixing HW stats types for actions is not supported");return false;
- if (action) {
flow_action_for_each(i, action_entry, action) {if (i && action_entry->hw_stats != last_hw_stats) {NL_SET_ERR_MSG_MOD(extack, "Mixing HW stats types for actions is not supported");return false;}last_hw_stats = action_entry->hw_stats;
last_hw_stats = action_entry->hw_stats;}
This patch makes no sense really.
If action is NULL, a crash would happen earlier anyway in
if (flow_offload_has_one_action(action)) return true;
Also, I wonder why it has been backported to stable version, there was no Fixes: tag in the submission.