[PATCH 1/2] ALSA: cs46xx: mark snd_cs46xx_download_image as static

[PATCH 1/2] ALSA: cs46xx: mark snd_cs46xx_download_image as static

[Arnd Bergmann]

From: Arnd Bergmann <arnd@arndb.de>

snd_cs46xx_download_image() was originally called from dsp_spos.c, but
is now local to cs46xx_lib.c. Mark it as 'static' to avoid a warning
about it lacking a declaration, and '__maybe_unused' to avoid a warning
about it being unused when CONFIG_SND_CS46XX_NEW_DSP is disabled:

sound/pci/cs46xx/cs46xx_lib.c:534:5: error: no previous prototype for 'snd_cs46xx_download_image'

Fixes: 89f157d9e6bf ("[ALSA] cs46xx - Fix PM resume")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 sound/pci/cs46xx/cs46xx_lib.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/pci/cs46xx/cs46xx_lib.c b/sound/pci/cs46xx/cs46xx_lib.c
index 62f45847b351..7d882b33d45e 100644
--- a/sound/pci/cs46xx/cs46xx_lib.c
+++ b/sound/pci/cs46xx/cs46xx_lib.c
@@ -531,7 +531,7 @@ static int load_firmware(struct snd_cs46xx *chip)
 	return err;
 }
 
-int snd_cs46xx_download_image(struct snd_cs46xx *chip)
+static __maybe_unused int snd_cs46xx_download_image(struct snd_cs46xx *chip)
 {
 	int idx, err;
 	unsigned int offset = 0;
-- 
2.39.2

[PATCH 2/2] ALSA: oss: avoid missing-prototype warnings

[Arnd Bergmann]

From: Arnd Bergmann <arnd@arndb.de>

Two functions are defined and used in pcm_oss.c but also optionally
used from io.c, with an optional prototype. If CONFIG_SND_PCM_OSS_PLUGINS
is disabled, this causes a warning as the functions are not static
and have no prototype:

sound/core/oss/pcm_oss.c:1235:19: error: no previous prototype for 'snd_pcm_oss_write3' [-Werror=missing-prototypes]
sound/core/oss/pcm_oss.c:1266:19: error: no previous prototype for 'snd_pcm_oss_read3' [-Werror=missing-prototypes]

Avoid this by making the prototypes unconditional.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 sound/core/oss/pcm_plugin.h | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/sound/core/oss/pcm_plugin.h b/sound/core/oss/pcm_plugin.h
index 46e273bd4a78..50a6b50f5db4 100644
--- a/sound/core/oss/pcm_plugin.h
+++ b/sound/core/oss/pcm_plugin.h
@@ -141,6 +141,14 @@ int snd_pcm_area_copy(const struct snd_pcm_channel_area *src_channel,
 
 void *snd_pcm_plug_buf_alloc(struct snd_pcm_substream *plug, snd_pcm_uframes_t size);
 void snd_pcm_plug_buf_unlock(struct snd_pcm_substream *plug, void *ptr);
+#else
+
+static inline snd_pcm_sframes_t snd_pcm_plug_client_size(struct snd_pcm_substream *handle, snd_pcm_uframes_t drv_size) { return drv_size; }
+static inline snd_pcm_sframes_t snd_pcm_plug_slave_size(struct snd_pcm_substream *handle, snd_pcm_uframes_t clt_size) { return clt_size; }
+static inline int snd_pcm_plug_slave_format(int format, const struct snd_mask *format_mask) { return format; }
+
+#endif
+
 snd_pcm_sframes_t snd_pcm_oss_write3(struct snd_pcm_substream *substream,
 				     const char *ptr, snd_pcm_uframes_t size,
 				     int in_kernel);
@@ -151,14 +159,6 @@ snd_pcm_sframes_t snd_pcm_oss_writev3(struct snd_pcm_substream *substream,
 snd_pcm_sframes_t snd_pcm_oss_readv3(struct snd_pcm_substream *substream,
 				     void **bufs, snd_pcm_uframes_t frames);
 
-#else
-
-static inline snd_pcm_sframes_t snd_pcm_plug_client_size(struct snd_pcm_substream *handle, snd_pcm_uframes_t drv_size) { return drv_size; }
-static inline snd_pcm_sframes_t snd_pcm_plug_slave_size(struct snd_pcm_substream *handle, snd_pcm_uframes_t clt_size) { return clt_size; }
-static inline int snd_pcm_plug_slave_format(int format, const struct snd_mask *format_mask) { return format; }
-
-#endif
-
 #ifdef PLUGIN_DEBUG
 #define pdprintf(fmt, args...) printk(KERN_DEBUG "plugin: " fmt, ##args)
 #else
-- 
2.39.2

Re: [PATCH 1/2] ALSA: cs46xx: mark snd_cs46xx_download_image as static

[Takashi Iwai]

On Tue, 16 May 2023 21:50:41 +0200,
Arnd Bergmann wrote:
> 
> From: Arnd Bergmann <arnd@arndb.de>
> 
> snd_cs46xx_download_image() was originally called from dsp_spos.c, but
> is now local to cs46xx_lib.c. Mark it as 'static' to avoid a warning
> about it lacking a declaration, and '__maybe_unused' to avoid a warning
> about it being unused when CONFIG_SND_CS46XX_NEW_DSP is disabled:
> 
> sound/pci/cs46xx/cs46xx_lib.c:534:5: error: no previous prototype for 'snd_cs46xx_download_image'
> 
> Fixes: 89f157d9e6bf ("[ALSA] cs46xx - Fix PM resume")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Thanks, applied now.


Takashi

Re: [PATCH 2/2] ALSA: oss: avoid missing-prototype warnings

[Takashi Iwai]

On Tue, 16 May 2023 21:50:42 +0200,
Arnd Bergmann wrote:
> 
> From: Arnd Bergmann <arnd@arndb.de>
> 
> Two functions are defined and used in pcm_oss.c but also optionally
> used from io.c, with an optional prototype. If CONFIG_SND_PCM_OSS_PLUGINS
> is disabled, this causes a warning as the functions are not static
> and have no prototype:
> 
> sound/core/oss/pcm_oss.c:1235:19: error: no previous prototype for 'snd_pcm_oss_write3' [-Werror=missing-prototypes]
> sound/core/oss/pcm_oss.c:1266:19: error: no previous prototype for 'snd_pcm_oss_read3' [-Werror=missing-prototypes]
> 
> Avoid this by making the prototypes unconditional.
> 
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Thanks, applied now.


Takashi