[alsa-devel] [PATCH v2] ASoC: intel: bxt: Constify hw_constraints

14 Jun 2017

snd_pcm_hw_constraint_list(), *_ratnums() and *_ratdens() receive the
const pointers.  Constify the corresponding static objects for better
hardening.
Signed-off-by: Takashi Iwai tiwai@suse.de
---
v1->v2: rebased to topic/intel branch
sound/soc/intel/boards/bxt_da7219_max98357a.c | 12 ++++++------
 sound/soc/intel/boards/bxt_rt298.c            | 12 ++++++------
 2 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/sound/soc/intel/boards/bxt_da7219_max98357a.c b/sound/soc/intel/boards/bxt_da7219_max98357a.c
index 3a8c4d954a91..1429eb391da8 100644
--- a/sound/soc/intel/boards/bxt_da7219_max98357a.c
+++ b/sound/soc/intel/boards/bxt_da7219_max98357a.c
@@ -238,31 +238,31 @@ static int broxton_da7219_fe_init(struct snd_soc_pcm_runtime *rtd)
    return 0;
 }
-static unsigned int rates[] = {
+static const unsigned int rates[] = {
    48000,
 };
-static struct snd_pcm_hw_constraint_list constraints_rates = {
+static const struct snd_pcm_hw_constraint_list constraints_rates = {
    .count = ARRAY_SIZE(rates),
    .list  = rates,
    .mask = 0,
 };
-static unsigned int channels[] = {
+static const unsigned int channels[] = {
    DUAL_CHANNEL,
 };
-static struct snd_pcm_hw_constraint_list constraints_channels = {
+static const struct snd_pcm_hw_constraint_list constraints_channels = {
    .count = ARRAY_SIZE(channels),
    .list = channels,
    .mask = 0,
 };
-static unsigned int channels_quad[] = {
+static const unsigned int channels_quad[] = {
    QUAD_CHANNEL,
 };
-static struct snd_pcm_hw_constraint_list constraints_channels_quad = {
+static const struct snd_pcm_hw_constraint_list constraints_channels_quad = {
    .count = ARRAY_SIZE(channels_quad),
    .list = channels_quad,
    .mask = 0,
diff --git a/sound/soc/intel/boards/bxt_rt298.c b/sound/soc/intel/boards/bxt_rt298.c
index 36ee7480e9f1..0c3a3cbcb884 100644
--- a/sound/soc/intel/boards/bxt_rt298.c
+++ b/sound/soc/intel/boards/bxt_rt298.c
@@ -207,11 +207,11 @@ static const struct snd_soc_ops broxton_rt298_ops = {
    .hw_params = broxton_rt298_hw_params,
 };
-static unsigned int rates[] = {
+static const unsigned int rates[] = {
    48000,
 };
-static struct snd_pcm_hw_constraint_list constraints_rates = {
+static const struct snd_pcm_hw_constraint_list constraints_rates = {
    .count = ARRAY_SIZE(rates),
    .list  = rates,
    .mask = 0,
@@ -227,11 +227,11 @@ static int broxton_dmic_fixup(struct snd_soc_pcm_runtime *rtd,
    return 0;
 }
-static unsigned int channels_dmic[] = {
+static const unsigned int channels_dmic[] = {
    1, 2, 3, 4,
 };
-static struct snd_pcm_hw_constraint_list constraints_dmic_channels = {
+static const struct snd_pcm_hw_constraint_list constraints_dmic_channels = {
    .count = ARRAY_SIZE(channels_dmic),
    .list = channels_dmic,
    .mask = 0,
@@ -253,11 +253,11 @@ static const struct snd_soc_ops broxton_dmic_ops = {
    .startup = broxton_dmic_startup,
 };
-static unsigned int channels[] = {
+static const unsigned int channels[] = {
    2,
 };
-static struct snd_pcm_hw_constraint_list constraints_channels = {
+static const struct snd_pcm_hw_constraint_list constraints_channels = {
    .count = ARRAY_SIZE(channels),
    .list = channels,
    .mask = 0,
-- 
2.13.1


    