sysctl: remove redundant assignment to first
Variable first is set to '0', but this value is never read as it is not used later on, hence it is a redundant assignment and can be removed. Clean up the following clang-analyzer warning: kernel/sysctl.c:1562:4: warning: Value stored to 'first' is never read [clang-analyzer-deadcode.DeadStores]. Link: https://lkml.kernel.org/r/1620469990-22182-1-git-send-email-jiapeng.chong@linux.alibaba.com Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Reported-by: Abaci Robot <abaci@linux.alibaba.com> Acked-by: Luis Chamberlain <mcgrof@kernel.org> Cc: Kees Cook <keescook@chromium.org> Cc: Iurii Zaikin <yzaikin@google.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Andrii Nakryiko <andrii@kernel.org> Cc: Martin KaFai Lau <kafai@fb.com> Cc: Song Liu <songliubraving@fb.com> Cc: Yonghong Song <yhs@fb.com> Cc: John Fastabend <john.fastabend@gmail.com> Cc: KP Singh <kpsingh@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -1494,7 +1494,6 @@ int proc_do_large_bitmap(struct ctl_table *table, int write,
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void *buffer, size_t *lenp, loff_t *ppos)
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{
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int err = 0;
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bool first = 1;
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size_t left = *lenp;
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unsigned long bitmap_len = table->maxlen;
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unsigned long *bitmap = *(unsigned long **) table->data;
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@ -1579,12 +1578,12 @@ int proc_do_large_bitmap(struct ctl_table *table, int write,
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}
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bitmap_set(tmp_bitmap, val_a, val_b - val_a + 1);
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first = 0;
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proc_skip_char(&p, &left, '\n');
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}
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left += skipped;
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} else {
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unsigned long bit_a, bit_b = 0;
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bool first = 1;
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while (left) {
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bit_a = find_next_bit(bitmap, bitmap_len, bit_b);
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