[PATCH] powerpc: udbg_printf() formatting attribute

This patch allows the compiler to catch any printf-like mismatches for
udbg_printf().  After some brute force building I've only found issues
with my own code and lparcfg.c It could break some developers, but
IMHO that would be goodness.

Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c
index 2cbde86..c02deaa 100644 (file)
--- a/arch/powerpc/kernel/lparcfg.c
+++ b/arch/powerpc/kernel/lparcfg.c
@@ -521,10 +521,10 @@ static ssize_t lparcfg_write(struct file *file, const char __user * buf,
 
        current_weight = (resource >> 5 * 8) & 0xFF;
 
-       pr_debug("%s: current_entitled = %lu, current_weight = %lu\n",
+       pr_debug("%s: current_entitled = %lu, current_weight = %u\n",
                 __FUNCTION__, current_entitled, current_weight);
 
-       pr_debug("%s: new_entitled = %lu, new_weight = %lu\n",
+       pr_debug("%s: new_entitled = %lu, new_weight = %u\n",
                 __FUNCTION__, *new_entitled_ptr, *new_weight_ptr);
 
        retval = plpar_hcall_norets(H_SET_PPP, *new_entitled_ptr,

diff --git a/include/asm-powerpc/udbg.h b/include/asm-powerpc/udbg.h
index 5c4236c..19a1517 100644 (file)
--- a/include/asm-powerpc/udbg.h
+++ b/include/asm-powerpc/udbg.h
@@ -23,7 +23,8 @@ extern int udbg_write(const char *s, int n);
 extern int udbg_read(char *buf, int buflen);
 
 extern void register_early_udbg_console(void);
-extern void udbg_printf(const char *fmt, ...);
+extern void udbg_printf(const char *fmt, ...)
+       __attribute__ ((format (printf, 1, 2)));
 extern void udbg_progress(char *s, unsigned short hex);
 
 extern void udbg_init_uart(void __iomem *comport, unsigned int speed,