On Sat, Jun 02, 2007 at 03:57:12PM +0200, Adrian Bunk wrote:
> I'm getting the following compile error in 2.6.22-rc3-mm1 with
> CONFIG_X86_CMPXCHG=n (with -Werror-implicit-function-declaration -
> otherwise it would be a link error):
>
> <-- snip -->
>
> ...
> CC drivers/xen/grant-table.o
> /home/bunk/linux/kernel-2.6/linux-2.6.22-rc3-mm1/drivers/xen/grant-table.c: In function ‘gnttab_end_foreign_access_ref’:
> /home/bunk/linux/kernel-2.6/linux-2.6.22-rc3-mm1/drivers/xen/grant-table.c:203: error: implicit declaration of function ‘sync_cmpxchg’
> make[3]: *** [drivers/xen/grant-table.o] Error 1
>
> <-- snip -->
>
> Adding a dependency of XEN on X86_CMPXCHG should not be a problem and
> not prevent any reasonable real-life usage.
>
> But what worries me is that a seemingly architecture independent
> driver uses a function only available in some configurations.
Still present as of 2.6.22-rc6-mm1.
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
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