ALSA: hdsp - Add a comment about external firmwares for hdsp

When the hdsp driver is built in kernel, the corresponding firmware
files have to be built into the kernel as well (otherwise the boot
will hang up for fairly long time), but there is no way to control
it in Kconfig yet, unfortunately.  Instead, show a comment for user
just to make sure.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 3 insertions, 0 deletions

diff --git a/sound/pci/Kconfig b/sound/pci/Kconfig
index 93422e3a3f0c..7478971cd21d 100644
--- a/sound/pci/Kconfig
+++ b/sound/pci/Kconfig
@@ -532,6 +532,9 @@ config SND_HDSP
           To compile this driver as a module, choose M here: the module
           will be called snd-hdsp.
 
+comment "Don't forget to add built-in firmwares for HDSP driver"
+        depends on SND_HDSP=y
+
 config SND_HDSPM
         tristate "RME Hammerfall DSP MADI"
         select SND_HWDEP