Re: [2.6 patch] add -Werror-implicit-function-declaration to CFLAGS

[Adrian Bunk <bunk@stusta.de>]

On Fri, Jul 07, 2006 at 08:42:18AM +0200, Sam Ravnborg wrote:
>...
> make -C /home/sam/kernel/kbuild.git O=/home/sam/kernel/osparc
>   Using /home/sam/kernel/kbuild.git as source for kernel
>   GEN     /home/sam/kernel/osparc/Makefile
>   CHK     include/linux/version.h
>   CHK     include/linux/utsrelease.h
>   CHK     include/linux/compile.h
>   CC      arch/sparc/mm/init.o
> In file included from include2/asm/tlb.h:22,
>                  from /home/sam/kernel/kbuild.git/arch/sparc/mm/init.c:32:
> /home/sam/kernel/kbuild.git/include/asm-generic/tlb.h: In function `tlb_flush_mmu':
> /home/sam/kernel/kbuild.git/include/asm-generic/tlb.h:76: error: implicit declaration of function `release_pages'
> /home/sam/kernel/kbuild.git/include/asm-generic/tlb.h: In function `tlb_remove_page':
> /home/sam/kernel/kbuild.git/include/asm-generic/tlb.h:105: error: implicit declaration of function `page_cache_release'
> make[3]: *** [arch/sparc/mm/init.o] Error 1
> make[2]: *** [arch/sparc/mm] Error 2
> make[1]: *** [_all] Error 2
> make: *** [all] Error 2
>...

OK, I tried starting with this one.

The problem is that in the CONFIG_SWAP=n case, linux/swap.h uses these 
functions.

These implicit declarations are bugs that should be fixed.

I tried adding an #include <linux/pagemap.h> to linux/swap.h, but this 
broke things faster than I could fix them.

Does anyone know our header mess good enough for being able to help me 
with this issue?

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed