mirror of https://gitee.com/openkylin/linux.git
34186b48d2
gcc warns that accessing a pointer based on a numeric constant may
be an offset into a NULL pointer, and would therefore has zero
accessible bytes:
arch/arm/common/sharpsl_param.c: In function ‘sharpsl_save_param’:
arch/arm/common/sharpsl_param.c:43:9: error: ‘memcpy’ reading 64 bytes from a region of size 0 [-Werror=stringop-overread]
43 | memcpy(&sharpsl_param, param_start(PARAM_BASE), sizeof(struct sharpsl_param_info));
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In this particular case, the warning is bogus since this is the actual
pointer, not an offset on a NULL pointer. Add a local variable to shut
up the warning and hope it doesn't come back.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Daniel Mack <daniel@zonque.org>
Cc: Daniel Mack <daniel@zonque.org>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Linus Walleij <linus.walleij@linaro.org>
Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99578
Link: https://lore.kernel.org/r/20210927145332.2784005-1-arnd@kernel.org'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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|---|---|---|
| .. | ||
| Kconfig | ||
| Makefile | ||
| bL_switcher.c | ||
| bL_switcher_dummy_if.c | ||
| dmabounce.c | ||
| firmware.c | ||
| krait-l2-accessors.c | ||
| locomo.c | ||
| mcpm_entry.c | ||
| mcpm_head.S | ||
| mcpm_platsmp.c | ||
| sa1111.c | ||
| scoop.c | ||
| secure_cntvoff.S | ||
| sharpsl_param.c | ||
| vlock.S | ||
| vlock.h | ||