ALSA: pci: Constify snd_pcm_hardware definitions

Most of snd_pcm_hardware definitions are just copied to another object
as-is, hence we can define them as const for further optimization.

There should be no functional changes by this patch.

Link: https://lore.kernel.org/r/20200103081714.9560-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/pci/ali5451/ali5451.c b/sound/pci/ali5451/ali5451.c
index 9f78cf9..4340775 100644 (file)
--- a/sound/pci/ali5451/ali5451.c
+++ b/sound/pci/ali5451/ali5451.c
@@ -1400,7 +1400,7 @@ static snd_pcm_uframes_t snd_ali_pointer(struct snd_pcm_substream *substream)
        return cso;
 }
 
-static struct snd_pcm_hardware snd_ali_playback =
+static const struct snd_pcm_hardware snd_ali_playback =
 {
        .info =         (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
                         SNDRV_PCM_INFO_BLOCK_TRANSFER |
@@ -1426,7 +1426,7 @@ static struct snd_pcm_hardware snd_ali_playback =
  *  Capture support device description
  */
 
-static struct snd_pcm_hardware snd_ali_capture =
+static const struct snd_pcm_hardware snd_ali_capture =
 {
        .info =         (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
                         SNDRV_PCM_INFO_BLOCK_TRANSFER |
@@ -1457,7 +1457,7 @@ static void snd_ali_pcm_free_substream(struct snd_pcm_runtime *runtime)
 }
 
 static int snd_ali_open(struct snd_pcm_substream *substream, int rec,
-                       int channel, struct snd_pcm_hardware *phw)
+                       int channel, const struct snd_pcm_hardware *phw)
 {
        struct snd_ali *codec = snd_pcm_substream_chip(substream);
        struct snd_pcm_runtime *runtime = substream->runtime;
@@ -1537,7 +1537,7 @@ static int snd_ali_modem_hw_params(struct snd_pcm_substream *substream,
        return 0;
 }
 
-static struct snd_pcm_hardware snd_ali_modem =
+static const struct snd_pcm_hardware snd_ali_modem =
 {
        .info =         (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
                         SNDRV_PCM_INFO_BLOCK_TRANSFER |

diff --git a/sound/pci/echoaudio/darla20.c b/sound/pci/echoaudio/darla20.c
index 0f1c65d..e295c71 100644 (file)
--- a/sound/pci/echoaudio/darla20.c
+++ b/sound/pci/echoaudio/darla20.c
@@ -56,7 +56,7 @@ static const struct pci_device_id snd_echo_ids[] = {
        {0,}
 };
 
-static struct snd_pcm_hardware pcm_hardware_skel = {
+static const struct snd_pcm_hardware pcm_hardware_skel = {
        .info = SNDRV_PCM_INFO_MMAP |
                SNDRV_PCM_INFO_INTERLEAVED |
                SNDRV_PCM_INFO_BLOCK_TRANSFER |

diff --git a/sound/pci/echoaudio/darla24.c b/sound/pci/echoaudio/darla24.c
index 6dd7bfd..ae816e7 100644 (file)
--- a/sound/pci/echoaudio/darla24.c
+++ b/sound/pci/echoaudio/darla24.c
@@ -61,7 +61,7 @@ static const struct pci_device_id snd_echo_ids[] = {
        {0,}
 };
 
-static struct snd_pcm_hardware pcm_hardware_skel = {
+static const struct snd_pcm_hardware pcm_hardware_skel = {
        .info = SNDRV_PCM_INFO_MMAP |
                SNDRV_PCM_INFO_INTERLEAVED |
                SNDRV_PCM_INFO_BLOCK_TRANSFER |

diff --git a/sound/pci/echoaudio/echo3g.c b/sound/pci/echoaudio/echo3g.c
index 8a03c4b..3d37bb4 100644 (file)
--- a/sound/pci/echoaudio/echo3g.c
+++ b/sound/pci/echoaudio/echo3g.c
@@ -74,7 +74,7 @@ static const struct pci_device_id snd_echo_ids[] = {
        {0,}
 };
 
-static struct snd_pcm_hardware pcm_hardware_skel = {
+static const struct snd_pcm_hardware pcm_hardware_skel = {
        .info = SNDRV_PCM_INFO_MMAP |
                SNDRV_PCM_INFO_INTERLEAVED |
                SNDRV_PCM_INFO_BLOCK_TRANSFER |

diff --git a/sound/pci/echoaudio/gina20.c b/sound/pci/echoaudio/gina20.c
index fa1208f..4f864dd 100644 (file)
--- a/sound/pci/echoaudio/gina20.c
+++ b/sound/pci/echoaudio/gina20.c
@@ -60,7 +60,7 @@ static const struct pci_device_id snd_echo_ids[] = {
        {0,}
 };
 
-static struct snd_pcm_hardware pcm_hardware_skel = {
+static const struct snd_pcm_hardware pcm_hardware_skel = {
        .info = SNDRV_PCM_INFO_MMAP |
                SNDRV_PCM_INFO_INTERLEAVED |
                SNDRV_PCM_INFO_BLOCK_TRANSFER |

diff --git a/sound/pci/echoaudio/gina24.c b/sound/pci/echoaudio/gina24.c
index 3089c32..eff69e8 100644 (file)
--- a/sound/pci/echoaudio/gina24.c
+++ b/sound/pci/echoaudio/gina24.c
@@ -81,7 +81,7 @@ static const struct pci_device_id snd_echo_ids[] = {
        {0,}
 };
 
-static struct snd_pcm_hardware pcm_hardware_skel = {
+static const struct snd_pcm_hardware pcm_hardware_skel = {
        .info = SNDRV_PCM_INFO_MMAP |
                SNDRV_PCM_INFO_INTERLEAVED |
                SNDRV_PCM_INFO_BLOCK_TRANSFER |

diff --git a/sound/pci/echoaudio/indigo.c b/sound/pci/echoaudio/indigo.c
index 0e85070..a9f2efc 100644 (file)
--- a/sound/pci/echoaudio/indigo.c
+++ b/sound/pci/echoaudio/indigo.c
@@ -61,7 +61,7 @@ static const struct pci_device_id snd_echo_ids[] = {
        {0,}
 };
 
-static struct snd_pcm_hardware pcm_hardware_skel = {
+static const struct snd_pcm_hardware pcm_hardware_skel = {
        .info = SNDRV_PCM_INFO_MMAP |
                SNDRV_PCM_INFO_INTERLEAVED |
                SNDRV_PCM_INFO_BLOCK_TRANSFER |

diff --git a/sound/pci/echoaudio/indigodj.c b/sound/pci/echoaudio/indigodj.c
index 0ad0221..14e9769 100644 (file)
--- a/sound/pci/echoaudio/indigodj.c
+++ b/sound/pci/echoaudio/indigodj.c
@@ -61,7 +61,7 @@ static const struct pci_device_id snd_echo_ids[] = {
        {0,}
 };
 
-static struct snd_pcm_hardware pcm_hardware_skel = {
+static const struct snd_pcm_hardware pcm_hardware_skel = {
        .info = SNDRV_PCM_INFO_MMAP |
                SNDRV_PCM_INFO_INTERLEAVED |
                SNDRV_PCM_INFO_BLOCK_TRANSFER |

diff --git a/sound/pci/echoaudio/indigodjx.c b/sound/pci/echoaudio/indigodjx.c
index 38f17d3..a14a7dc 100644 (file)
--- a/sound/pci/echoaudio/indigodjx.c
+++ b/sound/pci/echoaudio/indigodjx.c
@@ -61,7 +61,7 @@ static const struct pci_device_id snd_echo_ids[] = {
        {0,}
 };
 
-static struct snd_pcm_hardware pcm_hardware_skel = {
+static const struct snd_pcm_hardware pcm_hardware_skel = {
        .info = SNDRV_PCM_INFO_MMAP |
                SNDRV_PCM_INFO_INTERLEAVED |
                SNDRV_PCM_INFO_BLOCK_TRANSFER |

diff --git a/sound/pci/echoaudio/indigoio.c b/sound/pci/echoaudio/indigoio.c
index 29e0137..97e0244 100644 (file)
--- a/sound/pci/echoaudio/indigoio.c
+++ b/sound/pci/echoaudio/indigoio.c
@@ -62,7 +62,7 @@ static const struct pci_device_id snd_echo_ids[] = {
        {0,}
 };
 
-static struct snd_pcm_hardware pcm_hardware_skel = {
+static const struct snd_pcm_hardware pcm_hardware_skel = {
        .info = SNDRV_PCM_INFO_MMAP |
                SNDRV_PCM_INFO_INTERLEAVED |
                SNDRV_PCM_INFO_BLOCK_TRANSFER |

diff --git a/sound/pci/echoaudio/indigoiox.c b/sound/pci/echoaudio/indigoiox.c
index f5c9ef6..a017c96 100644 (file)
--- a/sound/pci/echoaudio/indigoiox.c
+++ b/sound/pci/echoaudio/indigoiox.c
@@ -62,7 +62,7 @@ static const struct pci_device_id snd_echo_ids[] = {
        {0,}
 };
 
-static struct snd_pcm_hardware pcm_hardware_skel = {
+static const struct snd_pcm_hardware pcm_hardware_skel = {
        .info = SNDRV_PCM_INFO_MMAP |
                SNDRV_PCM_INFO_INTERLEAVED |
                SNDRV_PCM_INFO_BLOCK_TRANSFER |

diff --git a/sound/pci/echoaudio/layla20.c b/sound/pci/echoaudio/layla20.c
index 74906c3..7e38bc9 100644 (file)
--- a/sound/pci/echoaudio/layla20.c
+++ b/sound/pci/echoaudio/layla20.c
@@ -70,7 +70,7 @@ static const struct pci_device_id snd_echo_ids[] = {
        {0,}
 };
 
-static struct snd_pcm_hardware pcm_hardware_skel = {
+static const struct snd_pcm_hardware pcm_hardware_skel = {
        .info = SNDRV_PCM_INFO_MMAP |
                SNDRV_PCM_INFO_INTERLEAVED |
                SNDRV_PCM_INFO_BLOCK_TRANSFER |

diff --git a/sound/pci/echoaudio/layla24.c b/sound/pci/echoaudio/layla24.c
index 6974232..95c5221 100644 (file)
--- a/sound/pci/echoaudio/layla24.c
+++ b/sound/pci/echoaudio/layla24.c
@@ -80,7 +80,7 @@ static const struct pci_device_id snd_echo_ids[] = {
        {0,}
 };
 
-static struct snd_pcm_hardware pcm_hardware_skel = {
+static const struct snd_pcm_hardware pcm_hardware_skel = {
        .info = SNDRV_PCM_INFO_MMAP |
                SNDRV_PCM_INFO_INTERLEAVED |
                SNDRV_PCM_INFO_BLOCK_TRANSFER |

diff --git a/sound/pci/echoaudio/mia.c b/sound/pci/echoaudio/mia.c
index ee9722d..a2d4b00 100644 (file)
--- a/sound/pci/echoaudio/mia.c
+++ b/sound/pci/echoaudio/mia.c
@@ -71,7 +71,7 @@ static const struct pci_device_id snd_echo_ids[] = {
        {0,}
 };
 
-static struct snd_pcm_hardware pcm_hardware_skel = {
+static const struct snd_pcm_hardware pcm_hardware_skel = {
        .info = SNDRV_PCM_INFO_MMAP |
                SNDRV_PCM_INFO_INTERLEAVED |
                SNDRV_PCM_INFO_BLOCK_TRANSFER |

diff --git a/sound/pci/echoaudio/mona.c b/sound/pci/echoaudio/mona.c
index 3e5747e..1b45a2b 100644 (file)
--- a/sound/pci/echoaudio/mona.c
+++ b/sound/pci/echoaudio/mona.c
@@ -90,7 +90,7 @@ static const struct pci_device_id snd_echo_ids[] = {
        {0,}
 };
 
-static struct snd_pcm_hardware pcm_hardware_skel = {
+static const struct snd_pcm_hardware pcm_hardware_skel = {
        .info = SNDRV_PCM_INFO_MMAP |
                SNDRV_PCM_INFO_INTERLEAVED |
                SNDRV_PCM_INFO_BLOCK_TRANSFER |

diff --git a/sound/pci/nm256/nm256.c b/sound/pci/nm256/nm256.c
index ac19448..5da28b0 100644 (file)
--- a/sound/pci/nm256/nm256.c
+++ b/sound/pci/nm256/nm256.c
@@ -785,7 +785,7 @@ snd_nm256_capture_update(struct nm256 *chip)
 /*
  * hardware info
  */
-static struct snd_pcm_hardware snd_nm256_playback =
+static const struct snd_pcm_hardware snd_nm256_playback =
 {
        .info =                 SNDRV_PCM_INFO_MMAP_IOMEM |SNDRV_PCM_INFO_MMAP_VALID |
                                SNDRV_PCM_INFO_INTERLEAVED |
@@ -804,7 +804,7 @@ static struct snd_pcm_hardware snd_nm256_playback =
        .period_bytes_max =     128 * 1024,
 };
 
-static struct snd_pcm_hardware snd_nm256_capture =
+static const struct snd_pcm_hardware snd_nm256_capture =
 {
        .info =                 SNDRV_PCM_INFO_MMAP_IOMEM | SNDRV_PCM_INFO_MMAP_VALID |
                                SNDRV_PCM_INFO_INTERLEAVED |
@@ -838,7 +838,7 @@ static int snd_nm256_pcm_hw_params(struct snd_pcm_substream *substream,
  */
 static void snd_nm256_setup_stream(struct nm256 *chip, struct nm256_stream *s,
                                   struct snd_pcm_substream *substream,
-                                  struct snd_pcm_hardware *hw_ptr)
+                                  const struct snd_pcm_hardware *hw_ptr)
 {
        struct snd_pcm_runtime *runtime = substream->runtime;
 

diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c
index 56ae14c..9e32633 100644 (file)
--- a/sound/pci/rme9652/hdspm.c
+++ b/sound/pci/rme9652/hdspm.c
@@ -5820,7 +5820,7 @@ static int snd_hdspm_prepare(struct snd_pcm_substream *substream)
        return 0;
 }
 
-static struct snd_pcm_hardware snd_hdspm_playback_subinfo = {
+static const struct snd_pcm_hardware snd_hdspm_playback_subinfo = {
        .info = (SNDRV_PCM_INFO_MMAP |
                 SNDRV_PCM_INFO_MMAP_VALID |
                 SNDRV_PCM_INFO_NONINTERLEAVED |
@@ -5845,7 +5845,7 @@ static struct snd_pcm_hardware snd_hdspm_playback_subinfo = {
        .fifo_size = 0
 };
 
-static struct snd_pcm_hardware snd_hdspm_capture_subinfo = {
+static const struct snd_pcm_hardware snd_hdspm_capture_subinfo = {
        .info = (SNDRV_PCM_INFO_MMAP |
                 SNDRV_PCM_INFO_MMAP_VALID |
                 SNDRV_PCM_INFO_NONINTERLEAVED |