2003-01-23 14:47:12

by Arnd Bergmann

Subject: [patch] gcc-3.3 warns about 2.5.59 EXPORT_SYMBOL

When building linux-2.5.59 with gcc-3.3 (on s390, if that matters),
I get a warning like "warning: `__ksymtab___foo' defined but
not used" each time that EXPORT_SYMBOL is used.
The patch below fixes this.

Arnd <><

--- ./include/linux/module.h 17 Jan 2003 13:46:37 -0000 1.15
+++ ./include/linux/module.h 23 Jan 2003 14:53:06 -0000
@@ -145,7 +145,7 @@
__attribute__((section("__ksymtab_strings"))) \
= MODULE_SYMBOL_PREFIX #sym; \
static const struct kernel_symbol __ksymtab_##sym \
- __attribute__((section("__ksymtab"))) \
+ __attribute__((section("__ksymtab"),unused)) \
= { (unsigned long)&sym, __kstrtab_##sym }

#define EXPORT_SYMBOL_NOVERS(sym) EXPORT_SYMBOL(sym)
@@ -155,7 +155,7 @@
__attribute__((section("__ksymtab_strings"))) \
= MODULE_SYMBOL_PREFIX #sym; \
static const struct kernel_symbol __ksymtab_##sym \
- __attribute__((section("__gpl_ksymtab"))) \
+ __attribute__((section("__gpl_ksymtab"),unused)) \
= { (unsigned long)&sym, __kstrtab_##sym }

struct module_ref