[dpdk-stv] [PATCH 0/1] Fix the pointer 'ctx1' uninitialized error with gcc4.5.1

[dpdk-stv] [PATCH 0/1] Fix the pointer 'ctx1' uninitialized error with gcc4.5.1

[Min Cao]

Description: This patch is aimed to fix the the pointer 'ctx1' uninitialized error with gcc4.5.1 as described below.
Download dpdk source code from http://dpdk.org, and compile the source code(commit cc333208d5658fea642098b665cd429e6cda54a9).
It has the following compilation error on fedora14 with gcc4.5.1 while it is fine on Fedorak20 with gcc4.8.2:
"dpdk/lib/librte_kvargs/rte_kvargs.c:51:14: error: 'ctx1' may be used uninitialized in this function"
According to the latest DPDK OS Building Test Report(commit:cc333208d5658fea642098b665cd429e6cda54a9, the master branch from http://dpdk.org), 
this error also occurs on SUSE11SP2_64 with gcc4.5.1, SUSE11SP3_32 with gcc4.5.1 and SUSE11SP3_64 with gcc4.3.4. 
Initializing the pointer can solve this problem.

Signed-off-by: Cao Min <min.cao-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Acked-by: Liu, Jijiang <jijiang.liu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Tested-by: Waterman Cao <waterman.cao-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>

Zhan Zhaochen (1):
 Fix the pointer 'ctx1' uninitialized error with gcc 4.5.1

 lib/librte_kvargs/rte_kvargs.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

-- 
1.7.3.1

[dpdk-stv] [PATCH 1/1] Fix the pointer 'ctx1' uninitialized error with gcc 4.5.1

[Min Cao]

Discription: This patch is aimed to fix the the pointer 'ctx1' uninitialized error with gcc4.5.1 as described below:
"dpdk/lib/librte_kvargs/rte_kvargs.c:51:14: error: 'ctx1' may be used uninitialized in this function"

Signed-off-by: Cao Min <min.cao-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Acked-by: Liu, Jijiang <jijiang.liu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Tested-by: Waterman Cao <waterman.cao-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
---
 lib/librte_kvargs/rte_kvargs.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/lib/librte_kvargs/rte_kvargs.c b/lib/librte_kvargs/rte_kvargs.c
index a7586a3..8bc1e46 100644
--- a/lib/librte_kvargs/rte_kvargs.c
+++ b/lib/librte_kvargs/rte_kvargs.c
@@ -48,7 +48,9 @@ static int
 rte_kvargs_tokenize(struct rte_kvargs *kvlist, const char *params)
 {
 	unsigned i;
-	char *str, *ctx1, *ctx2;
+	char *str;
+	char *ctx1 = NULL;
+	char *ctx2 = NULL;
 
 	/* Copy the const char *params to a modifiable string
 	 * to pass to rte_strsplit
-- 
1.7.3.1

Re: [dpdk-stv] [PATCH 1/1] Fix the pointer 'ctx1' uninitialized error with gcc 4.5.1

[Thomas Monjalon]

2014-06-16 11:22, Min Cao:
> Discription: This patch is aimed to fix the the pointer 'ctx1' uninitialized
> error with gcc4.5.1 as described below:
> "dpdk/lib/librte_kvargs/rte_kvargs.c:51:14: error: 'ctx1' may be used
> uninitialized in this function"
> 
> Signed-off-by: Cao Min <min.cao-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
> Acked-by: Liu, Jijiang <jijiang.liu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
> Tested-by: Waterman Cao <waterman.cao-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>

Applied for version 1.7.0.

Thanks
-- 
Thomas

[dpdk-stv] [PATCH 0/1] Fix the pointer 'ctx1' uninitialized error with gcc4.5.1

[min.cao-ral2JQCrhuEAvxtiuMwx3w]

Description: This patch is aimed to fix the the pointer 'ctx1' uninitialized error with gcc4.5.1 as described below.
Download dpdk source code from http://dpdk.org, and compile the source code(commit cc333208d5658fea642098b665cd429e6cda54a9).
It has the following compilation error on fedora14 with gcc4.5.1 while it is fine on Fedorak20 with gcc4.8.2:
"dpdk/lib/librte_kvargs/rte_kvargs.c:51:14: error: 'ctx1' may be used uninitialized in this function"
According to the latest DPDK OS Building Test Report(commit:cc333208d5658fea642098b665cd429e6cda54a9, the master branch from http://dpdk.org), 
this error also occurs on SUSE11SP2_64 with gcc4.5.1, SUSE11SP3_32 with gcc4.5.1 and SUSE11SP3_64 with gcc4.3.4. 
Initializing the pointer can solve this problem.

Signed-off-by: Zhan Zhaochen <zhaochen.zhan-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Acked-by: Liu, Jijiang <jijiang.liu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Tested-by: Waterman Cao <waterman.cao-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>

Zhan Zhaochen (1):
 Fix the pointer 'ctx1' uninitialized error with gcc 4.5.1

 lib/librte_kvargs/rte_kvargs.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

-- 
1.7.3.1

[dpdk-stv] [PATCH 1/1] Fix the pointer 'ctx1' uninitialized error with gcc 4.5.1

[min.cao-ral2JQCrhuEAvxtiuMwx3w]

Discription: This patch is aimed to fix the the pointer 'ctx1' uninitialized error with gcc4.5.1 as described below:
"dpdk/lib/librte_kvargs/rte_kvargs.c:51:14: error: 'ctx1' may be used uninitialized in this function"

Signed-off-by: Zhan Zhaochen <zhaochen.zhan-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Acked-by: Liu, Jijiang <jijiang.liu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Tested-by: Waterman Cao <waterman.cao-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
---
 lib/librte_kvargs/rte_kvargs.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/lib/librte_kvargs/rte_kvargs.c b/lib/librte_kvargs/rte_kvargs.c
index a7586a3..8bc1e46 100644
--- a/lib/librte_kvargs/rte_kvargs.c
+++ b/lib/librte_kvargs/rte_kvargs.c
@@ -48,7 +48,9 @@ static int
 rte_kvargs_tokenize(struct rte_kvargs *kvlist, const char *params)
 {
 	unsigned i;
-	char *str, *ctx1, *ctx2;
+	char *str;
+	char *ctx1 = NULL;
+	char *ctx2 = NULL;
 
 	/* Copy the const char *params to a modifiable string
 	 * to pass to rte_strsplit
-- 
1.7.3.1