Hi Tejun, After merging the slabh tree, today's linux-next build (x86_64 allmodconfig) failed like this: sound/usb/helper.c: In function 'snd_usb_ctl_msg': sound/usb/helper.c:97: error: implicit declaration of function 'kfree' Caused by commit d103d3b3e8512312b5254950035366d4422a479a ("percpu: don't implicitly include slab.h from percpu.h") from the slabh tree interacting with commit e5779998bf8b70e48a6cc208c8b61b33bd6117ea ("ALSA: usb-audio: refactor code") from the sound tree. I applied the following merge fixup patch which should be applied to the sound tree (see Documentation/SubmitChecklist Rule #1 :-)). From: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> Date: Mon, 29 Mar 2010 16:58:16 +1100 Subject: [PATCH] sound: usb helper: use of kfree requires the include of slab.h Signed-off-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> --- sound/usb/helper.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/sound/usb/helper.c b/sound/usb/helper.c index ba7dba4..d48d6f8 100644 --- a/sound/usb/helper.c +++ b/sound/usb/helper.c @@ -16,6 +16,7 @@ */ #include <linux/init.h> +#include <linux/slab.h> #include <linux/usb.h> #include "usbaudio.h" -- 1.7.0.3 -- Cheers, Stephen Rothwell sfr@xxxxxxxxxxxxxxxx http://www.canb.auug.org.au/~sfr/ -- 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