Commit 4b026ca3 authored by Arnd Bergmann's avatar Arnd Bergmann Committed by Russell King (Oracle)
Browse files

ARM: 9302/1: traps: hide unused functions on NOMMU 



A couple of functions in this file are only used on MMU-enabled
builds, and never even declared otherwise, causing these build
warnings:

arch/arm/kernel/traps.c:759:6: error: no previous prototype for '__pte_error' [-Werror=missing-prototypes]
arch/arm/kernel/traps.c:764:6: error: no previous prototype for '__pmd_error' [-Werror=missing-prototypes]
arch/arm/kernel/traps.c:769:6: error: no previous prototype for '__pgd_error' [-Werror=missing-prototypes]

Protect these in an #ifdef to avoid the warnings and save a little
bit of .text space.

Reviewed-by: default avatarKees Cook <keescook@chromium.org>
Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarRussell King (Oracle) <rmk+kernel@armlinux.org.uk>
parent a9f8f2b2

arch/arm/kernel/traps.c

+2 −0
Original line number Diff line number Diff line
@@ -756,6 +756,7 @@ void __readwrite_bug(const char *fn) 
}

EXPORT_SYMBOL(__readwrite_bug);



#ifdef CONFIG_MMU

void __pte_error(const char *file, int line, pte_t pte)

{

	pr_err("%s:%d: bad pte %08llx.\n", file, line, (long long)pte_val(pte));
@@ -770,6 +771,7 @@ void __pgd_error(const char *file, int line, pgd_t pgd) 
{

	pr_err("%s:%d: bad pgd %08llx.\n", file, line, (long long)pgd_val(pgd));

}

#endif



asmlinkage void __div0(void)

{