[v1] examples/ip_pipeline: fix build issue with GCC 13

Message ID 20230502135045.3541570-1-jerinj@marvell.com (mailing list archive)
State Accepted, archived
Delegated to: David Marchand
Headers
Series [v1] examples/ip_pipeline: fix build issue with GCC 13 |

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/loongarch-compilation success Compilation OK
ci/loongarch-unit-testing success Unit Testing PASS
ci/Intel-compilation success Compilation OK
ci/iol-mellanox-Performance success Performance Testing PASS
ci/iol-broadcom-Performance success Performance Testing PASS
ci/iol-intel-Performance success Performance Testing PASS
ci/iol-intel-Functional success Functional Testing PASS
ci/iol-abi-testing success Testing PASS
ci/intel-Testing success Testing PASS
ci/iol-aarch64-unit-testing success Testing PASS
ci/iol-unit-testing success Testing PASS
ci/iol-x86_64-compile-testing success Testing PASS
ci/iol-aarch64-compile-testing success Testing PASS
ci/iol-testing success Testing PASS
ci/iol-x86_64-unit-testing success Testing PASS
ci/intel-Functional success Functional PASS
ci/iol-broadcom-Functional fail Functional Testing issues

Commit Message

Jerin Jacob Kollanukkaran May 2, 2023, 1:50 p.m. UTC
  From: Jerin Jacob <jerinj@marvell.com>

Fix the following build issue by initializing req to NULL for
the local variable.

In function 'thread_msg_handle', inlined from 'thread_main' at
../examples/ip_pipeline/thread.c:3130:6:
../examples/ip_pipeline/thread.c:535:20: warning: 'req' may be used
uninitialized [-Wmaybe-uninitialized]
  535 |                 if (req == NULL)
      |                    ^
../examples/ip_pipeline/thread.c: In function 'thread_main':
../examples/ip_pipeline/thread.c:433:32: note: 'req' was declared here
  433 |         struct thread_msg_req *req;

Bugzilla ID: 1220
Fixes: a8bd581de397 ("examples/ip_pipeline: add thread runtime")
Cc: stable@dpdk.org

Signed-off-by: Jerin Jacob <jerinj@marvell.com>
---
 examples/ip_pipeline/thread.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
  

Comments

Cristian Dumitrescu May 2, 2023, 2:54 p.m. UTC | #1
> -----Original Message-----
> From: jerinj@marvell.com <jerinj@marvell.com>
> Sent: Tuesday, May 2, 2023 2:51 PM
> To: dev@dpdk.org; Dumitrescu, Cristian <cristian.dumitrescu@intel.com>;
> Singh, Jasvinder <jasvinder.singh@intel.com>
> Cc: thomas@monjalon.net; david.marchand@redhat.com;
> ferruh.yigit@xilinx.com; stephen@networkplumber.org; Jerin Jacob
> <jerinj@marvell.com>; stable@dpdk.org
> Subject: [dpdk-dev] [PATCH v1] examples/ip_pipeline: fix build issue with GCC 13
> 
> From: Jerin Jacob <jerinj@marvell.com>
> 
> Fix the following build issue by initializing req to NULL for
> the local variable.
> 
> In function 'thread_msg_handle', inlined from 'thread_main' at
> ../examples/ip_pipeline/thread.c:3130:6:
> ../examples/ip_pipeline/thread.c:535:20: warning: 'req' may be used
> uninitialized [-Wmaybe-uninitialized]
>   535 |                 if (req == NULL)
>       |                    ^
> ../examples/ip_pipeline/thread.c: In function 'thread_main':
> ../examples/ip_pipeline/thread.c:433:32: note: 'req' was declared here
>   433 |         struct thread_msg_req *req;
> 
> Bugzilla ID: 1220
> Fixes: a8bd581de397 ("examples/ip_pipeline: add thread runtime")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Jerin Jacob <jerinj@marvell.com>
> ---
Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
  
Gao, DaxueX May 11, 2023, 6:51 a.m. UTC | #2
> -----Original Message-----
> From: jerinj@marvell.com <jerinj@marvell.com>
> Sent: 2023年5月2日 21:51
> To: dev@dpdk.org; Dumitrescu, Cristian <cristian.dumitrescu@intel.com>;
> Singh, Jasvinder <jasvinder.singh@intel.com>
> Cc: thomas@monjalon.net; david.marchand@redhat.com;
> ferruh.yigit@xilinx.com; stephen@networkplumber.org; Jerin Jacob
> <jerinj@marvell.com>; stable@dpdk.org
> Subject: [dpdk-dev] [PATCH v1] examples/ip_pipeline: fix build issue with GCC 13
> 
> From: Jerin Jacob <jerinj@marvell.com>
> 
> Fix the following build issue by initializing req to NULL for the local variable.
> 
> In function 'thread_msg_handle', inlined from 'thread_main' at
> ../examples/ip_pipeline/thread.c:3130:6:
> ../examples/ip_pipeline/thread.c:535:20: warning: 'req' may be used
> uninitialized [-Wmaybe-uninitialized]
>   535 |                 if (req == NULL)
>       |                    ^
> ../examples/ip_pipeline/thread.c: In function 'thread_main':
> ../examples/ip_pipeline/thread.c:433:32: note: 'req' was declared here
>   433 |         struct thread_msg_req *req;
> 
> Bugzilla ID: 1220
> Fixes: a8bd581de397 ("examples/ip_pipeline: add thread runtime")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Jerin Jacob <jerinj@marvell.com>
Tested-by: Daxue Gao <daxuex.gao@intel.com>
  
David Marchand May 11, 2023, 7:01 a.m. UTC | #3
On Tue, May 2, 2023 at 3:51 PM <jerinj@marvell.com> wrote:
>
> From: Jerin Jacob <jerinj@marvell.com>
>
> Fix the following build issue by initializing req to NULL for
> the local variable.
>
> In function 'thread_msg_handle', inlined from 'thread_main' at
> ../examples/ip_pipeline/thread.c:3130:6:
> ../examples/ip_pipeline/thread.c:535:20: warning: 'req' may be used
> uninitialized [-Wmaybe-uninitialized]
>   535 |                 if (req == NULL)
>       |                    ^
> ../examples/ip_pipeline/thread.c: In function 'thread_main':
> ../examples/ip_pipeline/thread.c:433:32: note: 'req' was declared here
>   433 |         struct thread_msg_req *req;
>
> Bugzilla ID: 1220
> Fixes: a8bd581de397 ("examples/ip_pipeline: add thread runtime")
> Cc: stable@dpdk.org
>
> Signed-off-by: Jerin Jacob <jerinj@marvell.com>
Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
Tested-by: Ali Alnubani <alialnu@nvidia.com>
Tested-by: Daxue Gao <daxuex.gao@intel.com>

Applied, thanks.
  

Patch

diff --git a/examples/ip_pipeline/thread.c b/examples/ip_pipeline/thread.c
index 82d5f87c38..9817657ca9 100644
--- a/examples/ip_pipeline/thread.c
+++ b/examples/ip_pipeline/thread.c
@@ -430,7 +430,7 @@  thread_pipeline_disable(uint32_t thread_id,
 static inline struct thread_msg_req *
 thread_msg_recv(struct rte_ring *msgq_req)
 {
-	struct thread_msg_req *req;
+	struct thread_msg_req *req = NULL;
 
 	int status = rte_ring_sc_dequeue(msgq_req, (void **) &req);