[alsa-devel] [PATCH] ASoC: codecs: ad193x: make two arrays static const, makes object smaller
From: Colin Ian King colin.king@canonical.com
Don't populate the arrays on the stack but instead make them static const. Makes the object code smaller by 37 bytes.
Before: text data bss dec hex filename 16253 7200 0 23453 5b9d sound/soc/codecs/ad193x.o
After: text data bss dec hex filename 16056 7360 0 23416 5b78 sound/soc/codecs/ad193x.o
(gcc version 9.2.1, amd64)
Signed-off-by: Colin Ian King colin.king@canonical.com --- sound/soc/codecs/ad193x.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/sound/soc/codecs/ad193x.c b/sound/soc/codecs/ad193x.c index fb04c9379b71..980e024a5720 100644 --- a/sound/soc/codecs/ad193x.c +++ b/sound/soc/codecs/ad193x.c @@ -416,7 +416,7 @@ static struct snd_soc_dai_driver ad193x_no_adc_dai = { /* codec register values to set after reset */ static void ad193x_reg_default_init(struct ad193x_priv *ad193x) { - const struct reg_sequence reg_init[] = { + static const struct reg_sequence reg_init[] = { { 0, 0x99 }, /* PLL_CLK_CTRL0: pll input: mclki/xi 12.288Mhz */ { 1, 0x04 }, /* PLL_CLK_CTRL1: no on-chip Vref */ { 2, 0x40 }, /* DAC_CTRL0: TDM mode */ @@ -432,7 +432,7 @@ static void ad193x_reg_default_init(struct ad193x_priv *ad193x) { 12, 0x00 }, /* DAC_L4_VOL: no attenuation */ { 13, 0x00 }, /* DAC_R4_VOL: no attenuation */ }; - const struct reg_sequence reg_adc_init[] = { + static const struct reg_sequence reg_adc_init[] = { { 14, 0x03 }, /* ADC_CTRL0: high-pass filter enable */ { 15, 0x43 }, /* ADC_CTRL1: sata delay=1, adc aux mode */ { 16, 0x00 }, /* ADC_CTRL2: reset */
The patch
ASoC: codecs: ad193x: make two arrays static const, makes object smaller
has been applied to the asoc tree at
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-5.4
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.
If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.
Please add any relevant lists and maintainers to the CCs when replying to this mail.
Thanks, Mark
From 78b93b04771bdbefe94b84222506ba992f579c98 Mon Sep 17 00:00:00 2001
From: Colin Ian King colin.king@canonical.com Date: Fri, 6 Sep 2019 17:14:04 +0100 Subject: [PATCH] ASoC: codecs: ad193x: make two arrays static const, makes object smaller
Don't populate the arrays on the stack but instead make them static const. Makes the object code smaller by 37 bytes.
Before: text data bss dec hex filename 16253 7200 0 23453 5b9d sound/soc/codecs/ad193x.o
After: text data bss dec hex filename 16056 7360 0 23416 5b78 sound/soc/codecs/ad193x.o
(gcc version 9.2.1, amd64)
Signed-off-by: Colin Ian King colin.king@canonical.com Link: https://lore.kernel.org/r/20190906161404.1440-1-colin.king@canonical.com Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/codecs/ad193x.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/sound/soc/codecs/ad193x.c b/sound/soc/codecs/ad193x.c index fb04c9379b71..980e024a5720 100644 --- a/sound/soc/codecs/ad193x.c +++ b/sound/soc/codecs/ad193x.c @@ -416,7 +416,7 @@ static struct snd_soc_dai_driver ad193x_no_adc_dai = { /* codec register values to set after reset */ static void ad193x_reg_default_init(struct ad193x_priv *ad193x) { - const struct reg_sequence reg_init[] = { + static const struct reg_sequence reg_init[] = { { 0, 0x99 }, /* PLL_CLK_CTRL0: pll input: mclki/xi 12.288Mhz */ { 1, 0x04 }, /* PLL_CLK_CTRL1: no on-chip Vref */ { 2, 0x40 }, /* DAC_CTRL0: TDM mode */ @@ -432,7 +432,7 @@ static void ad193x_reg_default_init(struct ad193x_priv *ad193x) { 12, 0x00 }, /* DAC_L4_VOL: no attenuation */ { 13, 0x00 }, /* DAC_R4_VOL: no attenuation */ }; - const struct reg_sequence reg_adc_init[] = { + static const struct reg_sequence reg_adc_init[] = { { 14, 0x03 }, /* ADC_CTRL0: high-pass filter enable */ { 15, 0x43 }, /* ADC_CTRL1: sata delay=1, adc aux mode */ { 16, 0x00 }, /* ADC_CTRL2: reset */
participants (2)
-
Colin King
-
Mark Brown