[PATCH] qemu: dfu: Correct memset call in set_dfu_alt_info

When building with clang, we see: board/emulation/common/qemu_dfu.c:51:24: warning: 'memset' call operates on objects of type 'char' while the size is based on a different type 'char *' [-Wsizeof-pointer-memaccess]
As we're calling memset with the length set to the size of the pointer and not the size of the buffer. Correct this with a call of the size of the buffer itself.
Signed-off-by: Tom Rini trini@konsulko.com --- Cc: Tuomas Tynkkynen tuomas.tynkkynen@iki.fi Cc: Sughosh Ganu sughosh.ganu@linaro.org Cc: Simon Glass sjg@chromium.org --- board/emulation/common/qemu_dfu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/board/emulation/common/qemu_dfu.c b/board/emulation/common/qemu_dfu.c index 332d659c1f7c..7e7d84f6c00f 100644 --- a/board/emulation/common/qemu_dfu.c +++ b/board/emulation/common/qemu_dfu.c @@ -48,7 +48,7 @@ void set_dfu_alt_info(char *interface, char *devstr) env_get("dfu_alt_info")) return;
- memset(buf, 0, sizeof(buf)); + memset(buf, 0, DFU_ALT_BUF_LEN);
/* * Currently dfu_alt_info is needed on Qemu ARM64 for

On Fri, 7 Apr 2023 at 01:58, Tom Rini trini@konsulko.com wrote:
When building with clang, we see: board/emulation/common/qemu_dfu.c:51:24: warning: 'memset' call operates on objects of type 'char' while the size is based on a different type 'char *' [-Wsizeof-pointer-memaccess]
As we're calling memset with the length set to the size of the pointer and not the size of the buffer. Correct this with a call of the size of the buffer itself.
Signed-off-by: Tom Rini trini@konsulko.com
Cc: Tuomas Tynkkynen tuomas.tynkkynen@iki.fi Cc: Sughosh Ganu sughosh.ganu@linaro.org Cc: Simon Glass sjg@chromium.org
board/emulation/common/qemu_dfu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
Reviewed-by: Simon Glass sjg@chromium.org

On Thu, 6 Apr 2023 at 19:28, Tom Rini trini@konsulko.com wrote:
When building with clang, we see: board/emulation/common/qemu_dfu.c:51:24: warning: 'memset' call operates on objects of type 'char' while the size is based on a different type 'char *' [-Wsizeof-pointer-memaccess]
As we're calling memset with the length set to the size of the pointer and not the size of the buffer. Correct this with a call of the size of the buffer itself.
Signed-off-by: Tom Rini trini@konsulko.com
Acked-by: Sughosh Ganu sughosh.ganu@linaro.org
-sughosh
Cc: Tuomas Tynkkynen tuomas.tynkkynen@iki.fi Cc: Sughosh Ganu sughosh.ganu@linaro.org Cc: Simon Glass sjg@chromium.org
board/emulation/common/qemu_dfu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/board/emulation/common/qemu_dfu.c b/board/emulation/common/qemu_dfu.c index 332d659c1f7c..7e7d84f6c00f 100644 --- a/board/emulation/common/qemu_dfu.c +++ b/board/emulation/common/qemu_dfu.c @@ -48,7 +48,7 @@ void set_dfu_alt_info(char *interface, char *devstr) env_get("dfu_alt_info")) return;
memset(buf, 0, sizeof(buf));
memset(buf, 0, DFU_ALT_BUF_LEN); /* * Currently dfu_alt_info is needed on Qemu ARM64 for
-- 2.34.1

On Thu, Apr 06, 2023 at 09:58:40AM -0400, Tom Rini wrote:
When building with clang, we see: board/emulation/common/qemu_dfu.c:51:24: warning: 'memset' call operates on objects of type 'char' while the size is based on a different type 'char *' [-Wsizeof-pointer-memaccess]
As we're calling memset with the length set to the size of the pointer and not the size of the buffer. Correct this with a call of the size of the buffer itself.
Signed-off-by: Tom Rini trini@konsulko.com Reviewed-by: Simon Glass sjg@chromium.org Acked-by: Sughosh Ganu sughosh.ganu@linaro.org
Applied to u-boot/master, thanks!
participants (3)
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Simon Glass
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Sughosh Ganu
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Tom Rini