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Diffstat (limited to 'drivers/base/firmware_class.c')
| -rw-r--r-- | drivers/base/firmware_class.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c index 7d3a83bb1318..a47266ccfc60 100644 --- a/drivers/base/firmware_class.c +++ b/drivers/base/firmware_class.c @@ -846,9 +846,13 @@ static void request_firmware_work_func(struct work_struct *work) * * Caller must hold the reference count of @device. * - * Asynchronous variant of request_firmware() for user contexts where - * it is not possible to sleep for long time. It can't be called - * in atomic contexts. + * Asynchronous variant of request_firmware() for user contexts: + * - sleep for as small periods as possible since it may + * increase kernel boot time of built-in device drivers + * requesting firmware in their ->probe() methods, if + * @gfp is GFP_KERNEL. + * + * - can't sleep at all if @gfp is GFP_ATOMIC. **/ int request_firmware_nowait( |