[dpdk-dev,v3] examples/qos_sched: fix core limit for lower num of lcore

Message ID 1500451990-31199-1-git-send-email-hemant.agrawal@nxp.com (mailing list archive)
State Accepted, archived
Headers

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/Intel-compilation success Compilation OK

Commit Message

Hemant Agrawal July 19, 2017, 8:13 a.m. UTC
  APP_MAX_LCORES is hardcoded as 64.
This will cause build err when RTE_MAX_LCORE is less then 64.

"args.c:127:22: error: iteration 8 invokes undefined behavior
	[-Werror=aggressive-loop-optimizations]
   if (cfg->lcore_role[i] == ROLE_RTE)
       ~~~~~~~~~~~~~~~^~~
args.c:126:2: note: within this loop
  for (i = 0; i < APP_MAX_LCORE; i++) {"

Fixes: d52b5e735aa3 ("examples/qos_sched: fix lcore limit")
Cc: stable@dpdk.org

Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
---
v3: fix as per review comment of Thomas

 examples/qos_sched/main.h | 5 +++++
 1 file changed, 5 insertions(+)
  

Comments

Thomas Monjalon July 21, 2017, 2:38 p.m. UTC | #1
19/07/2017 11:13, Hemant Agrawal:
> APP_MAX_LCORES is hardcoded as 64.
> This will cause build err when RTE_MAX_LCORE is less then 64.
> 
> "args.c:127:22: error: iteration 8 invokes undefined behavior
> 	[-Werror=aggressive-loop-optimizations]
>    if (cfg->lcore_role[i] == ROLE_RTE)
>        ~~~~~~~~~~~~~~~^~~
> args.c:126:2: note: within this loop
>   for (i = 0; i < APP_MAX_LCORE; i++) {"
> 
> Fixes: d52b5e735aa3 ("examples/qos_sched: fix lcore limit")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
> ---
> v3: fix as per review comment of Thomas

Applied, thanks
  

Patch

diff --git a/examples/qos_sched/main.h b/examples/qos_sched/main.h
index c7490c6..8d02e1a 100644
--- a/examples/qos_sched/main.h
+++ b/examples/qos_sched/main.h
@@ -69,8 +69,13 @@  extern "C" {
 #define BURST_TX_DRAIN_US 100
 
 #ifndef APP_MAX_LCORE
+#if (RTE_MAX_LCORE > 64)
 #define APP_MAX_LCORE 64
+#else
+#define APP_MAX_LCORE RTE_MAX_LCORE
+#endif
 #endif
+
 #define MAX_DATA_STREAMS (APP_MAX_LCORE/2)
 #define MAX_SCHED_SUBPORTS		8
 #define MAX_SCHED_PIPES		4096