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[-next] tls: rx: Fix unsigned comparison with less than zero

Message ID 20220728011025.10865-1-yang.lee@linux.alibaba.com (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series [-next] tls: rx: Fix unsigned comparison with less than zero | expand

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Context Check Description
netdev/tree_selection success Guessed tree name to be net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/subject_prefix warning Target tree name not specified in the subject
netdev/cover_letter success Single patches do not need cover letters
netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers warning 1 maintainers not CCed: edumazet@google.com
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 9 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Yang Li July 28, 2022, 1:10 a.m. UTC
The return from the call to tls_rx_msg_size() is int, it can be
a negative error code, however this is being assigned to an
unsigned long variable 'sz', so making 'sz' an int.

Eliminate the following coccicheck warning:
./net/tls/tls_strp.c:211:6-8: WARNING: Unsigned expression compared with zero: sz < 0

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
---
 net/tls/tls_strp.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Comments

Jakub Kicinski July 28, 2022, 2:05 a.m. UTC | #1
On Thu, 28 Jul 2022 09:10:25 +0800 Yang Li wrote:
>  	struct tls_strparser *strp = (struct tls_strparser *)desc->arg.data;
> -	size_t sz, len, chunk;
> +	int sz;
> +	size_t len, chunk;
>  	struct sk_buff *skb;
>  	skb_frag_t *frag;

Thanks for the fix, please keep the sorting of the variable lines from
longest to shortest. "int sz;" should be the last variable declaration
line and "size_t len, chunk;" goes after the skb.
diff mbox series

Patch

diff --git a/net/tls/tls_strp.c b/net/tls/tls_strp.c
index b945288c312e..193e328294be 100644
--- a/net/tls/tls_strp.c
+++ b/net/tls/tls_strp.c
@@ -187,7 +187,8 @@  static int tls_strp_copyin(read_descriptor_t *desc, struct sk_buff *in_skb,
 			   unsigned int offset, size_t in_len)
 {
 	struct tls_strparser *strp = (struct tls_strparser *)desc->arg.data;
-	size_t sz, len, chunk;
+	int sz;
+	size_t len, chunk;
 	struct sk_buff *skb;
 	skb_frag_t *frag;