On 03/06/2014 03:43 AM, Stephen Rothwell wrote:
> Hi John,
>
> After merging the wireless-next tree, today's linux-next build
> (arm multi_v7_defconfig) failed like this:
>
> drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c: In function
> 'brcmf_sdio_intr_rstatus':
> drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c:2464:3: error:
> implicit declaration of function 'atomic_set_mask'
> [-Werror=implicit-function-declaration]
>
> Caused by commit c98db0bec72a ("brcmfmac: Use atomic functions for
> intstatus update"). Arm does not seem to provide
> atomic_set_mask()?
>
> I reverted that commit for today.
That is fine. The kbuild robot also found issue with this function on
other archs. I must say I am surprised as this code fragment in
asm-generic/atomic.h suggests it is needed for SMP to work (?):
20 #ifdef CONFIG_SMP
21 /* Force people to define core atomics */
22 # if !defined(atomic_add_return) || !defined(atomic_sub_return) || \
23 !defined(atomic_clear_mask) || !defined(atomic_set_mask)
24 # error "SMP requires a little arch-specific magic"
25 # endif
26 #endif
Maybe this requirement is no longer valid. Anyway. I will sent revert
patch and replacement to John.
Thanks,
Arend
--
To unsubscribe from this list: send the line "unsubscribe linux-next" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
