Check for snd_pcm_ops structures that are only stored in the ops field of a snd_soc_platform_driver structure or passed as the third argument to snd_pcm_set_ops. The corresponding field or parameter is declared const, so snd_pcm_ops structures that have this property can be declared as const also.

The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/)

// <smpl> @r disable optional_qualifier@ identifier i; position p; @@ static struct snd_pcm_ops i@p = { ... };

@ok1@ identifier r.i; struct snd_soc_platform_driver e; position p; @@ e.ops = &i@p;

@ok2@ identifier r.i; expression e1, e2; position p; @@ snd_pcm_set_ops(e1, e2, &i@p)

@bad@ position p != {r.p,ok1.p,ok2.p}; identifier r.i; struct snd_pcm_ops e; @@ e@i@p

@depends on !bad disable optional_qualifier@ identifier r.i; @@ static +const struct snd_pcm_ops i = { ... }; // </smpl>

Signed-off-by: Julia Lawall Julia.Lawall@lip6.fr

--- sound/soc/amd/acp-pcm-dma.c | 2 +- sound/soc/atmel/atmel-pcm-pdc.c | 2 +- sound/soc/codecs/rt5514-spi.c | 2 +- sound/soc/fsl/fsl_asrc_dma.c | 2 +- sound/soc/intel/atom/sst-mfld-platform-pcm.c | 2 +- sound/soc/intel/haswell/sst-haswell-pcm.c | 2 +- sound/soc/intel/skylake/skl-pcm.c | 2 +- sound/soc/kirkwood/kirkwood-dma.c | 2 +- sound/soc/qcom/lpass-platform.c | 2 +- sound/soc/soc-utils.c | 2 +- 10 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/sound/soc/intel/haswell/sst-haswell-pcm.c b/sound/soc/intel/haswell/sst-haswell-pcm.c index 3154525..9e4094e 100644 --- a/sound/soc/intel/haswell/sst-haswell-pcm.c +++ b/sound/soc/intel/haswell/sst-haswell-pcm.c @@ -871,7 +871,7 @@ out: return ret; }

-static struct snd_pcm_ops hsw_pcm_ops = { +static const struct snd_pcm_ops hsw_pcm_ops = { .open = hsw_pcm_open, .close = hsw_pcm_close, .ioctl = snd_pcm_lib_ioctl, diff --git a/sound/soc/atmel/atmel-pcm-pdc.c b/sound/soc/atmel/atmel-pcm-pdc.c index da861b4..91b7069 100644 --- a/sound/soc/atmel/atmel-pcm-pdc.c +++ b/sound/soc/atmel/atmel-pcm-pdc.c @@ -381,7 +381,7 @@ static int atmel_pcm_close(struct snd_pcm_substream *substream) return 0; }

-static struct snd_pcm_ops atmel_pcm_ops = { +static const struct snd_pcm_ops atmel_pcm_ops = { .open = atmel_pcm_open, .close = atmel_pcm_close, .ioctl = snd_pcm_lib_ioctl, diff --git a/sound/soc/qcom/lpass-platform.c b/sound/soc/qcom/lpass-platform.c index a144c14..e2ff538 100644 --- a/sound/soc/qcom/lpass-platform.c +++ b/sound/soc/qcom/lpass-platform.c @@ -372,7 +372,7 @@ static int lpass_platform_pcmops_mmap(struct snd_pcm_substream *substream, runtime->dma_bytes); }

-static struct snd_pcm_ops lpass_platform_pcm_ops = { +static const struct snd_pcm_ops lpass_platform_pcm_ops = { .open = lpass_platform_pcmops_open, .ioctl = snd_pcm_lib_ioctl, .hw_params = lpass_platform_pcmops_hw_params, diff --git a/sound/soc/codecs/rt5514-spi.c b/sound/soc/codecs/rt5514-spi.c index 77ff8eb..09103aa 100644 --- a/sound/soc/codecs/rt5514-spi.c +++ b/sound/soc/codecs/rt5514-spi.c @@ -236,7 +236,7 @@ static snd_pcm_uframes_t rt5514_spi_pcm_pointer( return bytes_to_frames(runtime, rt5514_dsp->dma_offset); }

-static struct snd_pcm_ops rt5514_spi_pcm_ops = { +static const struct snd_pcm_ops rt5514_spi_pcm_ops = { .open = rt5514_spi_pcm_open, .hw_params = rt5514_spi_hw_params, .hw_free = rt5514_spi_hw_free, diff --git a/sound/soc/amd/acp-pcm-dma.c b/sound/soc/amd/acp-pcm-dma.c index d1fb035..504c7cd 100644 --- a/sound/soc/amd/acp-pcm-dma.c +++ b/sound/soc/amd/acp-pcm-dma.c @@ -897,7 +897,7 @@ static int acp_dma_close(struct snd_pcm_substream *substream) return 0; }

-static struct snd_pcm_ops acp_dma_ops = { +static const struct snd_pcm_ops acp_dma_ops = { .open = acp_dma_open, .close = acp_dma_close, .ioctl = snd_pcm_lib_ioctl, diff --git a/sound/soc/intel/atom/sst-mfld-platform-pcm.c b/sound/soc/intel/atom/sst-mfld-platform-pcm.c index 52ed434..25c6d87 100644 --- a/sound/soc/intel/atom/sst-mfld-platform-pcm.c +++ b/sound/soc/intel/atom/sst-mfld-platform-pcm.c @@ -670,7 +670,7 @@ static snd_pcm_uframes_t sst_platform_pcm_pointer return str_info->buffer_ptr; }

-static struct snd_pcm_ops sst_platform_ops = { +static const struct snd_pcm_ops sst_platform_ops = { .open = sst_platform_open, .ioctl = snd_pcm_lib_ioctl, .trigger = sst_platform_pcm_trigger, diff --git a/sound/soc/intel/skylake/skl-pcm.c b/sound/soc/intel/skylake/skl-pcm.c index 77bfd40..86c125f 100644 --- a/sound/soc/intel/skylake/skl-pcm.c +++ b/sound/soc/intel/skylake/skl-pcm.c @@ -1093,7 +1093,7 @@ static int skl_get_time_info(struct snd_pcm_substream *substream, return 0; }

-static struct snd_pcm_ops skl_platform_ops = { +static const struct snd_pcm_ops skl_platform_ops = { .open = skl_platform_open, .ioctl = snd_pcm_lib_ioctl, .trigger = skl_platform_pcm_trigger, diff --git a/sound/soc/kirkwood/kirkwood-dma.c b/sound/soc/kirkwood/kirkwood-dma.c index dbfdfe9..dafd22e 100644 --- a/sound/soc/kirkwood/kirkwood-dma.c +++ b/sound/soc/kirkwood/kirkwood-dma.c @@ -242,7 +242,7 @@ static snd_pcm_uframes_t kirkwood_dma_pointer(struct snd_pcm_substream return count; }

-static struct snd_pcm_ops kirkwood_dma_ops = { +static const struct snd_pcm_ops kirkwood_dma_ops = { .open = kirkwood_dma_open, .close = kirkwood_dma_close, .ioctl = snd_pcm_lib_ioctl, diff --git a/sound/soc/soc-utils.c b/sound/soc/soc-utils.c index 53dd085..393e8f0 100644 --- a/sound/soc/soc-utils.c +++ b/sound/soc/soc-utils.c @@ -80,7 +80,7 @@ static int dummy_dma_open(struct snd_pcm_substream *substream) return 0; }

-static struct snd_pcm_ops dummy_dma_ops = { +static const struct snd_pcm_ops dummy_dma_ops = { .open = dummy_dma_open, .ioctl = snd_pcm_lib_ioctl, }; diff --git a/sound/soc/fsl/fsl_asrc_dma.c b/sound/soc/fsl/fsl_asrc_dma.c index ffc000b..dc30d78 100644 --- a/sound/soc/fsl/fsl_asrc_dma.c +++ b/sound/soc/fsl/fsl_asrc_dma.c @@ -322,7 +322,7 @@ static snd_pcm_uframes_t fsl_asrc_dma_pcm_pointer(struct snd_pcm_substream *subs return bytes_to_frames(substream->runtime, pair->pos); }

-static struct snd_pcm_ops fsl_asrc_dma_pcm_ops = { +static const struct snd_pcm_ops fsl_asrc_dma_pcm_ops = { .ioctl = snd_pcm_lib_ioctl, .hw_params = fsl_asrc_dma_hw_params, .hw_free = fsl_asrc_dma_hw_free,