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| author | Takashi Iwai <tiwai@suse.de> | 2008-11-28 15:17:06 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2008-11-28 15:22:02 +0100 |
| commit | ff7a3267368634e368ebaac68d5e3abf129edd1d (patch) | |
| tree | 588571dbc3f6017c6fa26990f5349ca5f63c1f98 /sound/pci/hda/hda_codec.h | |
| parent | 645f10c1ac7f733b224eaf97634edf9b20e2370e (diff) | |
| download | op-kernel-dev-ff7a3267368634e368ebaac68d5e3abf129edd1d.zip op-kernel-dev-ff7a3267368634e368ebaac68d5e3abf129edd1d.tar.gz | |
ALSA: hda - Don't export symbols when built-in kernel
The global functions in hda_codec.c and other core parts are only
for HD-audio codec and controller drivers. When the HD-audio driver
is built in kernel, all stuff have to be statically linked, thus
we don't need any exports.
This patch introduces a conditional macro to do export only
when needed.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda/hda_codec.h')
| -rw-r--r-- | sound/pci/hda/hda_codec.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h index 586ea08..6612d0f 100644 --- a/sound/pci/hda/hda_codec.h +++ b/sound/pci/hda/hda_codec.h @@ -905,4 +905,19 @@ static inline void snd_hda_power_down(struct hda_codec *codec) {} #define snd_hda_codec_needs_resume(codec) 1 #endif +/* + * Codec modularization + */ + +/* Export symbols only for communication with codec drivers; + * When built in kernel, all HD-audio drivers are supposed to be statically + * linked to the kernel. Thus, the symbols don't have to (or shouldn't) be + * exported unless it's built as a module. + */ +#ifdef MODULE +#define EXPORT_SYMBOL_HDA(sym) EXPORT_SYMBOL_GPL(sym) +#else +#define EXPORT_SYMBOL_HDA(sym) +#endif + #endif /* __SOUND_HDA_CODEC_H */ |
