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Compiling the kernel with gcc12.3 W=2 results in shadowing warnings:
warning: declaration of '__pptr' shadows a previous local [-Wshadow]
const struct { type x; } __packed *__pptr = (typeof(__pptr))(ptr);
note: in definition of macro '__put_unaligned_t'
__pptr->x = (val);
note: in expansion of macro '__get_unaligned_t'
__put_unaligned_t(type, __get_unaligned_t(type, src), dst);
__get_unaligned_t() and __put_unaligned_t() use a local variable named
'__pptr', which can lead to variable shadowing when these macros are used in
the same scope. This results in a -Wshadow warning during compilation.
To address this issue, rename the local variables within the macros to
ensure uniqueness.
Signed-off-by: Peng Jiang <jiang.peng9@zte.com.cn>
Signed-off-by: Shao Mingyin <shao.mingyin@zte.com.cn>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250324191230477zpGtgIRSH4mEHdtxGtgx9@zte.com.cn
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| .. | ||
| align.h | ||
| bits.h | ||
| cache.h | ||
| clocksource.h | ||
| const.h | ||
| datapage.h | ||
| getrandom.h | ||
| gettime.h | ||
| helpers.h | ||
| jiffies.h | ||
| ktime.h | ||
| limits.h | ||
| math64.h | ||
| page.h | ||
| processor.h | ||
| time.h | ||
| time32.h | ||
| time64.h | ||
| unaligned.h | ||
| vsyscall.h | ||