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SubjectRe: [PATCH] bluetooth: btmrvl_main: Replace GFP_ATOMIC with GFP_KERNEL in btmrvl_send_sync_cmd
Hi Jia-Ju,

> After checking all possible call chains to btmrvl_send_sync_cmd(),
> my tool finds that this function is never called in atomic context,
> namely never in an interrupt handler or holding a spinlock.
> And it calls wait_event_interruptible_timeout() after bt_skb_alloc(),
> so it indicates that btmrvl_send_sync_cmd()
> can call function which can sleep.
> Thus GFP_ATOMIC is not necessary, and it can be replaced with GFP_KERNEL.
> This is found by a static analysis tool named DCNS written by myself.
> Signed-off-by: Jia-Ju Bai <>
> ---
> drivers/bluetooth/btmrvl_main.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)

patch has been applied to bluetooth-next tree.



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