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[PATCH v1 2/8] ASoC: Intel: Skylake: Use recently introduced uuid_le_cmp_p{p}()

Started byAndy Shevchenko <andriy.shevchenko@linux.intel.com>
First post2017-04-21 17:00 +0200
Last post2017-04-24 11:00 +0200
Articles 3 — 2 participants

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  [PATCH v1 2/8] ASoC: Intel: Skylake: Use recently introduced uuid_le_cmp_p{p}() Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2017-04-21 17:00 +0200
    Re: [PATCH v1 2/8] ASoC: Intel: Skylake: Use recently introduced  uuid_le_cmp_p{p}() Vinod Koul <vinod.koul@intel.com> - 2017-04-24 06:50 +0200
      Re: [PATCH v1 2/8] ASoC: Intel: Skylake: Use recently introduced  uuid_le_cmp_p{p}() Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2017-04-24 11:00 +0200

#1628354 — [PATCH v1 2/8] ASoC: Intel: Skylake: Use recently introduced uuid_le_cmp_p{p}()

FromAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Date2017-04-21 17:00 +0200
Subject[PATCH v1 2/8] ASoC: Intel: Skylake: Use recently introduced uuid_le_cmp_p{p}()
Message-ID<tyIcp-72y-5@gated-at.bofh.it>
Recently introduced helpers take pointers to uuid_{be|le} instead of
reference.

Using them makes code less ugly.

Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 sound/soc/intel/skylake/skl-pcm.c       | 2 +-
 sound/soc/intel/skylake/skl-sst-utils.c | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/sound/soc/intel/skylake/skl-pcm.c b/sound/soc/intel/skylake/skl-pcm.c
index 600faad19bd4..4bf171985872 100644
--- a/sound/soc/intel/skylake/skl-pcm.c
+++ b/sound/soc/intel/skylake/skl-pcm.c
@@ -1207,7 +1207,7 @@ static int skl_get_module_info(struct skl *skl, struct skl_module_cfg *mconfig)
 	}
 
 	list_for_each_entry(module, &ctx->uuid_list, list) {
-		if (uuid_le_cmp(*uuid_mod, module->uuid) == 0) {
+		if (uuid_le_cmp_p(uuid_mod, module->uuid) == 0) {
 			mconfig->id.module_id = module->id;
 			mconfig->is_loadable = module->is_loadable;
 			return 0;
diff --git a/sound/soc/intel/skylake/skl-sst-utils.c b/sound/soc/intel/skylake/skl-sst-utils.c
index 6d5bff04bf65..67288580c743 100644
--- a/sound/soc/intel/skylake/skl-sst-utils.c
+++ b/sound/soc/intel/skylake/skl-sst-utils.c
@@ -189,7 +189,7 @@ int skl_get_pvt_id(struct skl_sst *ctx, uuid_le *uuid_mod, int instance_id)
 	int pvt_id;
 
 	list_for_each_entry(module, &ctx->uuid_list, list) {
-		if (uuid_le_cmp(*uuid_mod, module->uuid) == 0) {
+		if (uuid_le_cmp_p(uuid_mod, module->uuid) == 0) {
 
 			pvt_id = skl_pvtid_128(module);
 			if (pvt_id >= 0) {
@@ -218,7 +218,7 @@ int skl_put_pvt_id(struct skl_sst *ctx, uuid_le *uuid_mod, int *pvt_id)
 	struct uuid_module *module;
 
 	list_for_each_entry(module, &ctx->uuid_list, list) {
-		if (uuid_le_cmp(*uuid_mod, module->uuid) == 0) {
+		if (uuid_le_cmp_p(uuid_mod, module->uuid) == 0) {
 
 			if (*pvt_id != 0)
 				i = (*pvt_id) / 64;
-- 
2.11.0

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#1629165 — Re: [PATCH v1 2/8] ASoC: Intel: Skylake: Use recently introduced uuid_le_cmp_p{p}()

FromVinod Koul <vinod.koul@intel.com>
Date2017-04-24 06:50 +0200
SubjectRe: [PATCH v1 2/8] ASoC: Intel: Skylake: Use recently introduced uuid_le_cmp_p{p}()
Message-ID<tzE6K-2cz-9@gated-at.bofh.it>
In reply to#1628354
On Fri, Apr 21, 2017 at 05:46:39PM +0300, Andy Shevchenko wrote:
> Recently introduced helpers take pointers to uuid_{be|le} instead of
> reference.

Are they in linus's tree, if not it introduces dependency, so we might want
to defer after merge window

> 
> Using them makes code less ugly.

How so..?

> 
> Cc: Liam Girdwood <lgirdwood@gmail.com>
> Cc: Mark Brown <broonie@kernel.org>
> Cc: Vinod Koul <vinod.koul@intel.com>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> ---
>  sound/soc/intel/skylake/skl-pcm.c       | 2 +-
>  sound/soc/intel/skylake/skl-sst-utils.c | 4 ++--
>  2 files changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/sound/soc/intel/skylake/skl-pcm.c b/sound/soc/intel/skylake/skl-pcm.c
> index 600faad19bd4..4bf171985872 100644
> --- a/sound/soc/intel/skylake/skl-pcm.c
> +++ b/sound/soc/intel/skylake/skl-pcm.c
> @@ -1207,7 +1207,7 @@ static int skl_get_module_info(struct skl *skl, struct skl_module_cfg *mconfig)
>  	}
>  
>  	list_for_each_entry(module, &ctx->uuid_list, list) {
> -		if (uuid_le_cmp(*uuid_mod, module->uuid) == 0) {
> +		if (uuid_le_cmp_p(uuid_mod, module->uuid) == 0) {
>  			mconfig->id.module_id = module->id;
>  			mconfig->is_loadable = module->is_loadable;
>  			return 0;
> diff --git a/sound/soc/intel/skylake/skl-sst-utils.c b/sound/soc/intel/skylake/skl-sst-utils.c
> index 6d5bff04bf65..67288580c743 100644
> --- a/sound/soc/intel/skylake/skl-sst-utils.c
> +++ b/sound/soc/intel/skylake/skl-sst-utils.c
> @@ -189,7 +189,7 @@ int skl_get_pvt_id(struct skl_sst *ctx, uuid_le *uuid_mod, int instance_id)
>  	int pvt_id;
>  
>  	list_for_each_entry(module, &ctx->uuid_list, list) {
> -		if (uuid_le_cmp(*uuid_mod, module->uuid) == 0) {
> +		if (uuid_le_cmp_p(uuid_mod, module->uuid) == 0) {
>  
>  			pvt_id = skl_pvtid_128(module);
>  			if (pvt_id >= 0) {
> @@ -218,7 +218,7 @@ int skl_put_pvt_id(struct skl_sst *ctx, uuid_le *uuid_mod, int *pvt_id)
>  	struct uuid_module *module;
>  
>  	list_for_each_entry(module, &ctx->uuid_list, list) {
> -		if (uuid_le_cmp(*uuid_mod, module->uuid) == 0) {
> +		if (uuid_le_cmp_p(uuid_mod, module->uuid) == 0) {
>  
>  			if (*pvt_id != 0)
>  				i = (*pvt_id) / 64;
> -- 
> 2.11.0
> 

-- 
~Vinod

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#1629315 — Re: [PATCH v1 2/8] ASoC: Intel: Skylake: Use recently introduced uuid_le_cmp_p{p}()

FromAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Date2017-04-24 11:00 +0200
SubjectRe: [PATCH v1 2/8] ASoC: Intel: Skylake: Use recently introduced uuid_le_cmp_p{p}()
Message-ID<tzI0F-4Nd-7@gated-at.bofh.it>
In reply to#1629165
On Mon, 2017-04-24 at 10:21 +0530, Vinod Koul wrote:
> On Fri, Apr 21, 2017 at 05:46:39PM +0300, Andy Shevchenko wrote:
> > Recently introduced helpers take pointers to uuid_{be|le} instead of
> > reference.
> 
> Are they in linus's tree, if not it introduces dependency, so we might
> want
> to defer after merge window

You are Cc'ed to patch 1 which brings them.

> > 
> > Using them makes code less ugly.
> 
> How so..?

Consider below example.

- if (uuid_le_cmp(*uuid_mod, module->uuid) == 0) {
+ if (uuid_le_cmp_p(uuid_mod, module->uuid) == 0) {

There are two points:
1) caller don't need to dereference pointers to its values;
2) this allow compiler to not copy the data (though clever compiler
might optimize that).

> 
> > 
> > Cc: Liam Girdwood <lgirdwood@gmail.com>
> > Cc: Mark Brown <broonie@kernel.org>
> > Cc: Vinod Koul <vinod.koul@intel.com>
> > Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> > ---
> >  sound/soc/intel/skylake/skl-pcm.c       | 2 +-
> >  sound/soc/intel/skylake/skl-sst-utils.c | 4 ++--
> >  2 files changed, 3 insertions(+), 3 deletions(-)
> > 
> > diff --git a/sound/soc/intel/skylake/skl-pcm.c
> > b/sound/soc/intel/skylake/skl-pcm.c
> > index 600faad19bd4..4bf171985872 100644
> > --- a/sound/soc/intel/skylake/skl-pcm.c
> > +++ b/sound/soc/intel/skylake/skl-pcm.c
> > @@ -1207,7 +1207,7 @@ static int skl_get_module_info(struct skl
> > *skl, struct skl_module_cfg *mconfig)
> >  	}
> >  
> >  	list_for_each_entry(module, &ctx->uuid_list, list) {
> > -		if (uuid_le_cmp(*uuid_mod, module->uuid) == 0) {
> > +		if (uuid_le_cmp_p(uuid_mod, module->uuid) == 0) {
> >  			mconfig->id.module_id = module->id;
> >  			mconfig->is_loadable = module->is_loadable;
> >  			return 0;
> > diff --git a/sound/soc/intel/skylake/skl-sst-utils.c
> > b/sound/soc/intel/skylake/skl-sst-utils.c
> > index 6d5bff04bf65..67288580c743 100644
> > --- a/sound/soc/intel/skylake/skl-sst-utils.c
> > +++ b/sound/soc/intel/skylake/skl-sst-utils.c
> > @@ -189,7 +189,7 @@ int skl_get_pvt_id(struct skl_sst *ctx, uuid_le
> > *uuid_mod, int instance_id)
> >  	int pvt_id;
> >  
> >  	list_for_each_entry(module, &ctx->uuid_list, list) {
> > -		if (uuid_le_cmp(*uuid_mod, module->uuid) == 0) {
> > +		if (uuid_le_cmp_p(uuid_mod, module->uuid) == 0) {
> >  
> >  			pvt_id = skl_pvtid_128(module);
> >  			if (pvt_id >= 0) {
> > @@ -218,7 +218,7 @@ int skl_put_pvt_id(struct skl_sst *ctx, uuid_le
> > *uuid_mod, int *pvt_id)
> >  	struct uuid_module *module;
> >  
> >  	list_for_each_entry(module, &ctx->uuid_list, list) {
> > -		if (uuid_le_cmp(*uuid_mod, module->uuid) == 0) {
> > +		if (uuid_le_cmp_p(uuid_mod, module->uuid) == 0) {
> >  
> >  			if (*pvt_id != 0)
> >  				i = (*pvt_id) / 64;
> > -- 
> > 2.11.0
> > 
> 
> 

-- 
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy

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