[dpdk-dev] [PATCH v1] examples/ip_pipeline: fix build issue with GCC 13

[Ali Alnubani]

> -----Original Message-----
> From: jerinj at marvell.com <jerinj at marvell.com>
> Sent: Tuesday, May 2, 2023 4:49 PM
> To: dev at dpdk.org
> Cc: NBU-Contact-Thomas Monjalon (EXTERNAL) <thomas at monjalon.net>;
> david.marchand at redhat.com; ferruh.yigit at xilinx.com;
> stephen at networkplumber.org; Jerin Jacob <jerinj at marvell.com>;
> stable at dpdk.org
> Subject: [dpdk-dev] [PATCH v1] examples/ip_pipeline: fix build issue with
> GCC 13
> 
> From: Jerin Jacob <jerinj at 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 at dpdk.org
> 
> Signed-off-by: Jerin Jacob <jerinj at marvell.com>
> ---

Resolves the warning I see in Bugzilla 1220, thanks.

Now I see a failure in another example app:
"""
examples/ntb/ntb_fwd.c:945:23: error: 'rte_rawdev_xstats_get' accessing 8 bytes in a region of size 0 [-Werror=stringop-overflow=]
"""
Will open a separate issue for that.

Tested-by: Ali Alnubani <alialnu at nvidia.com>