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acpi-build: Fix compiler warning (missing gnu_printf format attribute)

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gcc 4.8.2 reports this warning when extra warnings are enabled (-Wextra):

  CC    m68k-softmmu/hw/m68k/mcf5206.o
hw/i386/acpi-build.c: In function ‘build_append_nameseg’:
hw/i386/acpi-build.c:294:5: error:
 function might be possible candidate for ‘gnu_printf’ format attribute [-Werror=suggest-attribute=format]
     g_string_vprintf(s, format, args);
     ^

When this warning is fixed, there is a new compiler warning:

  CC    i386-softmmu/hw/i386/acpi-build.o
hw/i386/acpi-build.c: In function ‘build_append_notify’:
hw/i386/acpi-build.c:632:5: error:
 format not a string literal and no format arguments [-Werror=format-security]
     build_append_nameseg(method, name);
     ^

This is fixed here, too.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This commit is contained in:
Stefan Weil 2013-11-17 19:00:22 +01:00 committed by Michael Tokarev
parent b2e2395f13
commit 867d898ccf
1 changed files with 3 additions and 2 deletions
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5
hw/i386/acpi-build.c
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@ -285,7 +285,8 @@ static inline void build_append_array(GArray *array, GArray *val)
g_array_append_vals(array, val->data, val->len);
}
static void build_append_nameseg(GArray *array, const char *format, ...)
static void GCC_FMT_ATTR(2, 3)
build_append_nameseg(GArray *array, const char *format, ...)
{
/* It would be nicer to use g_string_vprintf but it's only there in 2.22 */
char s[] = "XXXX";
@ -630,7 +631,7 @@ build_append_notify(GArray *device, const char *name,
GArray *method = build_alloc_array();
uint8_t op = 0x14; /* MethodOp */
build_append_nameseg(method, name);
build_append_nameseg(method, "%s", name);
build_append_byte(method, 0x02); /* MethodFlags: ArgCount */
for (i = skip; i < count; i++) {
GArray *target = build_alloc_array();