Messages in this thread Patch in this message | | | From | Su Hui <> | Subject | [PATCH 2/2] ACPI: OSL: add __printf format attribute to acpi_os_vprintf | Date | Thu, 31 Aug 2023 15:34:56 +0800 |
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With gcc and W=1 option to compile kernel, warning happends:
drivers/acpi/osl.c:156:2: error: function ‘acpi_os_vprintf’ might be a candidate for ‘gnu_printf’ format attribute [-Werror=suggest-attribute=format].
Allow the compiler to recognize and check format strings is safer.
Signed-off-by: Su Hui <suhui@nfschina.com> --- drivers/acpi/osl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index f725813d0cce..357f1325485d 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -149,7 +149,7 @@ void acpi_os_printf(const char *fmt, ...) } EXPORT_SYMBOL(acpi_os_printf); -void acpi_os_vprintf(const char *fmt, va_list args) +void __printf(1, 0) acpi_os_vprintf(const char *fmt, va_list args) { static char buffer[512]; -- 2.30.2
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