Running 'cppcheck' static code analyzer (see cppcheck(1))
on 'vmcore-dmesg/vmcore-dmesg.c' shows the following
shifting error:
$ cppcheck --enable=all vmcore-dmesg/vmcore-dmesg.c
Checking vmcore-dmesg/vmcore-dmesg.c ...
[vmcore-dmesg/vmcore-dmesg.c:17]: (error) Shifting signed 32-bit value by 31 bits is undefined behaviour
Fix the same via this patch.
Cc: Lianbo Jiang <lijiang@xxxxxxxxxx>
Cc: Simon Horman <horms@xxxxxxxxxxxx>
Signed-off-by: Bhupesh Sharma <bhsharma@xxxxxxxxxx>
---
vmcore-dmesg/vmcore-dmesg.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/vmcore-dmesg/vmcore-dmesg.c b/vmcore-dmesg/vmcore-dmesg.c
index 81c2a58..122e536 100644
--- a/vmcore-dmesg/vmcore-dmesg.c
+++ b/vmcore-dmesg/vmcore-dmesg.c
@@ -6,7 +6,7 @@ typedef Elf32_Nhdr Elf_Nhdr;
extern const char *fname;
/* stole this macro from kernel printk.c */
-#define LOG_BUF_LEN_MAX (uint32_t)(1 << 31)
+#define LOG_BUF_LEN_MAX (uint32_t)(1U << 31)
static void write_to_stdout(char *buf, unsigned int nr)
{
--
2.17.1
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