* [PATCH] mmc: sdhci: Convert sdhci_allocate_bounce_buffer() to return void
@ 2018-10-24 8:01 Chunyan Zhang
2018-10-24 13:50 ` Ulf Hansson
2018-10-25 2:12 ` Chunyan Zhang
0 siblings, 2 replies; 4+ messages in thread
From: Chunyan Zhang @ 2018-10-24 8:01 UTC (permalink / raw)
To: Ulf Hansson, Adrian Hunter
Cc: linux-kernel, linux-arm-kernel, Linus Walleij, Chunyan Zhang
The function sdhci_allocate_bounce_buffer() always return zero at
present, so there's no need to have a return value, that will also make
error path easier.
CC: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Chunyan Zhang <zhang.chunyan@linaro.org>
---
drivers/mmc/host/sdhci.c | 15 +++++----------
1 file changed, 5 insertions(+), 10 deletions(-)
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 1b3fbd9..e94f4aa 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -3408,7 +3408,7 @@ void __sdhci_read_caps(struct sdhci_host *host, u16 *ver, u32 *caps, u32 *caps1)
}
EXPORT_SYMBOL_GPL(__sdhci_read_caps);
-static int sdhci_allocate_bounce_buffer(struct sdhci_host *host)
+static void sdhci_allocate_bounce_buffer(struct sdhci_host *host)
{
struct mmc_host *mmc = host->mmc;
unsigned int max_blocks;
@@ -3446,7 +3446,7 @@ static int sdhci_allocate_bounce_buffer(struct sdhci_host *host)
* Exiting with zero here makes sure we proceed with
* mmc->max_segs == 1.
*/
- return 0;
+ return;
}
host->bounce_addr = dma_map_single(mmc->parent,
@@ -3456,7 +3456,7 @@ static int sdhci_allocate_bounce_buffer(struct sdhci_host *host)
ret = dma_mapping_error(mmc->parent, host->bounce_addr);
if (ret)
/* Again fall back to max_segs == 1 */
- return 0;
+ return;
host->bounce_buffer_size = bounce_size;
/* Lie about this since we're bouncing */
@@ -3466,8 +3466,6 @@ static int sdhci_allocate_bounce_buffer(struct sdhci_host *host)
pr_info("%s bounce up to %u segments into one, max segment size %u bytes\n",
mmc_hostname(mmc), max_blocks, bounce_size);
-
- return 0;
}
int sdhci_setup_host(struct sdhci_host *host)
@@ -3987,12 +3985,9 @@ int sdhci_setup_host(struct sdhci_host *host)
*/
mmc->max_blk_count = (host->quirks & SDHCI_QUIRK_NO_MULTIBLOCK) ? 1 : 65535;
- if (mmc->max_segs == 1) {
+ if (mmc->max_segs == 1)
/* This may alter mmc->*_blk_* parameters */
- ret = sdhci_allocate_bounce_buffer(host);
- if (ret)
- return ret;
- }
+ sdhci_allocate_bounce_buffer(host);
return 0;
--
2.7.4
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH] mmc: sdhci: Convert sdhci_allocate_bounce_buffer() to return void
2018-10-24 8:01 [PATCH] mmc: sdhci: Convert sdhci_allocate_bounce_buffer() to return void Chunyan Zhang
@ 2018-10-24 13:50 ` Ulf Hansson
2018-10-25 2:12 ` Chunyan Zhang
1 sibling, 0 replies; 4+ messages in thread
From: Ulf Hansson @ 2018-10-24 13:50 UTC (permalink / raw)
To: Chunyan Zhang
Cc: Adrian Hunter, Linux Kernel Mailing List, Linux ARM,
Linus Walleij, Chunyan Zhang
On 24 October 2018 at 10:01, Chunyan Zhang <zhang.chunyan@linaro.org> wrote:
> The function sdhci_allocate_bounce_buffer() always return zero at
> present, so there's no need to have a return value, that will also make
> error path easier.
>
> CC: Linus Walleij <linus.walleij@linaro.org>
> Signed-off-by: Chunyan Zhang <zhang.chunyan@linaro.org>
This looks good to me, however please re-post to linux-mmc.
Kind regards
Uffe
> ---
> drivers/mmc/host/sdhci.c | 15 +++++----------
> 1 file changed, 5 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
> index 1b3fbd9..e94f4aa 100644
> --- a/drivers/mmc/host/sdhci.c
> +++ b/drivers/mmc/host/sdhci.c
> @@ -3408,7 +3408,7 @@ void __sdhci_read_caps(struct sdhci_host *host, u16 *ver, u32 *caps, u32 *caps1)
> }
> EXPORT_SYMBOL_GPL(__sdhci_read_caps);
>
> -static int sdhci_allocate_bounce_buffer(struct sdhci_host *host)
> +static void sdhci_allocate_bounce_buffer(struct sdhci_host *host)
> {
> struct mmc_host *mmc = host->mmc;
> unsigned int max_blocks;
> @@ -3446,7 +3446,7 @@ static int sdhci_allocate_bounce_buffer(struct sdhci_host *host)
> * Exiting with zero here makes sure we proceed with
> * mmc->max_segs == 1.
> */
> - return 0;
> + return;
> }
>
> host->bounce_addr = dma_map_single(mmc->parent,
> @@ -3456,7 +3456,7 @@ static int sdhci_allocate_bounce_buffer(struct sdhci_host *host)
> ret = dma_mapping_error(mmc->parent, host->bounce_addr);
> if (ret)
> /* Again fall back to max_segs == 1 */
> - return 0;
> + return;
> host->bounce_buffer_size = bounce_size;
>
> /* Lie about this since we're bouncing */
> @@ -3466,8 +3466,6 @@ static int sdhci_allocate_bounce_buffer(struct sdhci_host *host)
>
> pr_info("%s bounce up to %u segments into one, max segment size %u bytes\n",
> mmc_hostname(mmc), max_blocks, bounce_size);
> -
> - return 0;
> }
>
> int sdhci_setup_host(struct sdhci_host *host)
> @@ -3987,12 +3985,9 @@ int sdhci_setup_host(struct sdhci_host *host)
> */
> mmc->max_blk_count = (host->quirks & SDHCI_QUIRK_NO_MULTIBLOCK) ? 1 : 65535;
>
> - if (mmc->max_segs == 1) {
> + if (mmc->max_segs == 1)
> /* This may alter mmc->*_blk_* parameters */
> - ret = sdhci_allocate_bounce_buffer(host);
> - if (ret)
> - return ret;
> - }
> + sdhci_allocate_bounce_buffer(host);
>
> return 0;
>
> --
> 2.7.4
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH] mmc: sdhci: Convert sdhci_allocate_bounce_buffer() to return void
2018-10-24 8:01 [PATCH] mmc: sdhci: Convert sdhci_allocate_bounce_buffer() to return void Chunyan Zhang
2018-10-24 13:50 ` Ulf Hansson
@ 2018-10-25 2:12 ` Chunyan Zhang
2018-11-12 11:05 ` Ulf Hansson
1 sibling, 1 reply; 4+ messages in thread
From: Chunyan Zhang @ 2018-10-25 2:12 UTC (permalink / raw)
To: Ulf Hansson, Adrian Hunter
Cc: linux-mmc, linux-kernel, Linus Walleij, Chunyan Zhang
The function sdhci_allocate_bounce_buffer() always return zero at
present, so there's no need to have a return value, that will also make
error path easier.
CC: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Chunyan Zhang <zhang.chunyan@linaro.org>
---
drivers/mmc/host/sdhci.c | 15 +++++----------
1 file changed, 5 insertions(+), 10 deletions(-)
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 1b3fbd9..e94f4aa 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -3408,7 +3408,7 @@ void __sdhci_read_caps(struct sdhci_host *host, u16 *ver, u32 *caps, u32 *caps1)
}
EXPORT_SYMBOL_GPL(__sdhci_read_caps);
-static int sdhci_allocate_bounce_buffer(struct sdhci_host *host)
+static void sdhci_allocate_bounce_buffer(struct sdhci_host *host)
{
struct mmc_host *mmc = host->mmc;
unsigned int max_blocks;
@@ -3446,7 +3446,7 @@ static int sdhci_allocate_bounce_buffer(struct sdhci_host *host)
* Exiting with zero here makes sure we proceed with
* mmc->max_segs == 1.
*/
- return 0;
+ return;
}
host->bounce_addr = dma_map_single(mmc->parent,
@@ -3456,7 +3456,7 @@ static int sdhci_allocate_bounce_buffer(struct sdhci_host *host)
ret = dma_mapping_error(mmc->parent, host->bounce_addr);
if (ret)
/* Again fall back to max_segs == 1 */
- return 0;
+ return;
host->bounce_buffer_size = bounce_size;
/* Lie about this since we're bouncing */
@@ -3466,8 +3466,6 @@ static int sdhci_allocate_bounce_buffer(struct sdhci_host *host)
pr_info("%s bounce up to %u segments into one, max segment size %u bytes\n",
mmc_hostname(mmc), max_blocks, bounce_size);
-
- return 0;
}
int sdhci_setup_host(struct sdhci_host *host)
@@ -3987,12 +3985,9 @@ int sdhci_setup_host(struct sdhci_host *host)
*/
mmc->max_blk_count = (host->quirks & SDHCI_QUIRK_NO_MULTIBLOCK) ? 1 : 65535;
- if (mmc->max_segs == 1) {
+ if (mmc->max_segs == 1)
/* This may alter mmc->*_blk_* parameters */
- ret = sdhci_allocate_bounce_buffer(host);
- if (ret)
- return ret;
- }
+ sdhci_allocate_bounce_buffer(host);
return 0;
--
2.7.4
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH] mmc: sdhci: Convert sdhci_allocate_bounce_buffer() to return void
2018-10-25 2:12 ` Chunyan Zhang
@ 2018-11-12 11:05 ` Ulf Hansson
0 siblings, 0 replies; 4+ messages in thread
From: Ulf Hansson @ 2018-11-12 11:05 UTC (permalink / raw)
To: Chunyan Zhang
Cc: Adrian Hunter, linux-mmc, Linux Kernel Mailing List,
Linus Walleij, Chunyan Zhang
On 25 October 2018 at 04:12, Chunyan Zhang <zhang.chunyan@linaro.org> wrote:
> The function sdhci_allocate_bounce_buffer() always return zero at
> present, so there's no need to have a return value, that will also make
> error path easier.
>
> CC: Linus Walleij <linus.walleij@linaro.org>
> Signed-off-by: Chunyan Zhang <zhang.chunyan@linaro.org>
Applied for next, thanks!
Kind regards
Uffe
> ---
> drivers/mmc/host/sdhci.c | 15 +++++----------
> 1 file changed, 5 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
> index 1b3fbd9..e94f4aa 100644
> --- a/drivers/mmc/host/sdhci.c
> +++ b/drivers/mmc/host/sdhci.c
> @@ -3408,7 +3408,7 @@ void __sdhci_read_caps(struct sdhci_host *host, u16 *ver, u32 *caps, u32 *caps1)
> }
> EXPORT_SYMBOL_GPL(__sdhci_read_caps);
>
> -static int sdhci_allocate_bounce_buffer(struct sdhci_host *host)
> +static void sdhci_allocate_bounce_buffer(struct sdhci_host *host)
> {
> struct mmc_host *mmc = host->mmc;
> unsigned int max_blocks;
> @@ -3446,7 +3446,7 @@ static int sdhci_allocate_bounce_buffer(struct sdhci_host *host)
> * Exiting with zero here makes sure we proceed with
> * mmc->max_segs == 1.
> */
> - return 0;
> + return;
> }
>
> host->bounce_addr = dma_map_single(mmc->parent,
> @@ -3456,7 +3456,7 @@ static int sdhci_allocate_bounce_buffer(struct sdhci_host *host)
> ret = dma_mapping_error(mmc->parent, host->bounce_addr);
> if (ret)
> /* Again fall back to max_segs == 1 */
> - return 0;
> + return;
> host->bounce_buffer_size = bounce_size;
>
> /* Lie about this since we're bouncing */
> @@ -3466,8 +3466,6 @@ static int sdhci_allocate_bounce_buffer(struct sdhci_host *host)
>
> pr_info("%s bounce up to %u segments into one, max segment size %u bytes\n",
> mmc_hostname(mmc), max_blocks, bounce_size);
> -
> - return 0;
> }
>
> int sdhci_setup_host(struct sdhci_host *host)
> @@ -3987,12 +3985,9 @@ int sdhci_setup_host(struct sdhci_host *host)
> */
> mmc->max_blk_count = (host->quirks & SDHCI_QUIRK_NO_MULTIBLOCK) ? 1 : 65535;
>
> - if (mmc->max_segs == 1) {
> + if (mmc->max_segs == 1)
> /* This may alter mmc->*_blk_* parameters */
> - ret = sdhci_allocate_bounce_buffer(host);
> - if (ret)
> - return ret;
> - }
> + sdhci_allocate_bounce_buffer(host);
>
> return 0;
>
> --
> 2.7.4
>
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2018-11-12 11:06 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-10-24 8:01 [PATCH] mmc: sdhci: Convert sdhci_allocate_bounce_buffer() to return void Chunyan Zhang
2018-10-24 13:50 ` Ulf Hansson
2018-10-25 2:12 ` Chunyan Zhang
2018-11-12 11:05 ` Ulf Hansson
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).