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ALSA: firewire-motu: mark trace helpers as __maybe_unused

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Two functions were introduced for the purpose of tracing but cause warnings
when tracing is disabled:

sound/firewire/motu/amdtp-motu.c:284:13: error: 'copy_message' defined but not used [-Werror=unused-function]
 static void copy_message(u64 *frames, __be32 *buffer, unsigned int data_blocks,
sound/firewire/motu/amdtp-motu.c:271:13: error: 'copy_sph' defined but not used [-Werror=unused-function]
 static void copy_sph(u32 *frames, __be32 *buffer, unsigned int data_blocks,

Marking them as __maybe_unused will do the right thing here.

Fixes: 17909c1b30 ("ALSA: firewire-motu: add tracepoints for SPH in IEC 61883-1 fashion")
Fixes: c6b0b9e65f ("ALSA: firewire-motu: add tracepoints for messages for unique protocol")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Arnd Bergmann 2017-04-19 19:51:29 +02:00 committed by Takashi Iwai
parent 5cd5b1bdfb
commit fa8323bf49
1 changed files with 6 additions and 4 deletions
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10
sound/firewire/motu/amdtp-motu.c
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@ -268,8 +268,9 @@ static void read_midi_messages(struct amdtp_stream *s, __be32 *buffer,
}
/* For tracepoints. */
static void copy_sph(u32 *frames, __be32 *buffer, unsigned int data_blocks,
unsigned int data_block_quadlets)
static void __maybe_unused copy_sph(u32 *frames, __be32 *buffer,
unsigned int data_blocks,
unsigned int data_block_quadlets)
{
unsigned int i;
@ -281,8 +282,9 @@ static void copy_sph(u32 *frames, __be32 *buffer, unsigned int data_blocks,
}
/* For tracepoints. */
static void copy_message(u64 *frames, __be32 *buffer, unsigned int data_blocks,
unsigned int data_block_quadlets)
static void __maybe_unused copy_message(u64 *frames, __be32 *buffer,
unsigned int data_blocks,
unsigned int data_block_quadlets)
{
unsigned int i;