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From a46c686f615a86933134c0924c3391ba598a02b8 Mon Sep 17 00:00:00 2001
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From: Bhupesh Sharma <bhsharma@redhat.com>
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Date: Tue, 10 Sep 2019 15:51:49 +0530
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Subject: [PATCH 5/5] vmcore-dmesg/vmcore-dmesg.c: Fix shifting error reported
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by cppcheck
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Running 'cppcheck' static code analyzer (see cppcheck(1))
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on 'vmcore-dmesg/vmcore-dmesg.c' shows the following
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shifting error:
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$ cppcheck --enable=all vmcore-dmesg/vmcore-dmesg.c
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Checking vmcore-dmesg/vmcore-dmesg.c ...
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[vmcore-dmesg/vmcore-dmesg.c:17]: (error) Shifting signed 32-bit value by 31 bits is undefined behaviour
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Fix the same via this patch.
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Signed-off-by: Bhupesh Sharma <bhsharma@redhat.com>
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Signed-off-by: Simon Horman <horms@verge.net.au>
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---
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vmcore-dmesg/vmcore-dmesg.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/vmcore-dmesg/vmcore-dmesg.c b/vmcore-dmesg/vmcore-dmesg.c
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index 81c2a58c9d86..122e53672e01 100644
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--- a/vmcore-dmesg/vmcore-dmesg.c
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+++ b/vmcore-dmesg/vmcore-dmesg.c
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@@ -6,7 +6,7 @@ typedef Elf32_Nhdr Elf_Nhdr;
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extern const char *fname;
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/* stole this macro from kernel printk.c */
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-#define LOG_BUF_LEN_MAX (uint32_t)(1 << 31)
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+#define LOG_BUF_LEN_MAX (uint32_t)(1U << 31)
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static void write_to_stdout(char *buf, unsigned int nr)
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{
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--
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2.17.1
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