diff mbox series

[1/2] crypto: hisilicon - select NEED_SG_DMA_LENGTH in qm Kconfig

Message ID 1570792690-74597-1-git-send-email-wangzhou1@hisilicon.com
State Accepted
Commit b981744ef04f7e8cb6931edab50021fff3c8077e
Headers show
Series [1/2] crypto: hisilicon - select NEED_SG_DMA_LENGTH in qm Kconfig | expand

Commit Message

Zhou Wang Oct. 11, 2019, 11:18 a.m. UTC
To avoid compile error in some platforms, select NEED_SG_DMA_LENGTH in
qm Kconfig.

Signed-off-by: Zhou Wang <wangzhou1@hisilicon.com>

Reported-by: kbuild test robot <lkp@intel.com>
---
 drivers/crypto/hisilicon/Kconfig | 1 +
 1 file changed, 1 insertion(+)

-- 
2.8.1

Comments

Zhou Wang Oct. 11, 2019, 11:25 a.m. UTC | #1
On 2019/10/11 19:18, Zhou Wang wrote:
> To avoid compile error in some platforms, select NEED_SG_DMA_LENGTH in

> qm Kconfig.

> 

> Signed-off-by: Zhou Wang <wangzhou1@hisilicon.com>

> Reported-by: kbuild test robot <lkp@intel.com>


sorry to make the head of this patch as 1/2, it should be "PATCH", there
is only one patch.

> ---

>  drivers/crypto/hisilicon/Kconfig | 1 +

>  1 file changed, 1 insertion(+)

> 

> diff --git a/drivers/crypto/hisilicon/Kconfig b/drivers/crypto/hisilicon/Kconfig

> index 82fb810d..a71f2bf 100644

> --- a/drivers/crypto/hisilicon/Kconfig

> +++ b/drivers/crypto/hisilicon/Kconfig

> @@ -18,6 +18,7 @@ config CRYPTO_DEV_HISI_QM

>  	tristate

>  	depends on ARM64 || COMPILE_TEST

>  	depends on PCI && PCI_MSI

> +	select NEED_SG_DMA_LENGTH

>  	help

>  	  HiSilicon accelerator engines use a common queue management

>  	  interface. Specific engine driver may use this module.

>
Herbert Xu Oct. 18, 2019, 8:04 a.m. UTC | #2
On Fri, Oct 11, 2019 at 07:18:10PM +0800, Zhou Wang wrote:
> To avoid compile error in some platforms, select NEED_SG_DMA_LENGTH in

> qm Kconfig.

> 

> Signed-off-by: Zhou Wang <wangzhou1@hisilicon.com>

> Reported-by: kbuild test robot <lkp@intel.com>

> ---

>  drivers/crypto/hisilicon/Kconfig | 1 +

>  1 file changed, 1 insertion(+)


Patch applied.  Thanks.
-- 
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
Zhou Wang Oct. 21, 2019, 3:53 a.m. UTC | #3
On 2019/10/18 16:04, Herbert Xu wrote:
> On Fri, Oct 11, 2019 at 07:18:10PM +0800, Zhou Wang wrote:

>> To avoid compile error in some platforms, select NEED_SG_DMA_LENGTH in

>> qm Kconfig.

>>

>> Signed-off-by: Zhou Wang <wangzhou1@hisilicon.com>

>> Reported-by: kbuild test robot <lkp@intel.com>

>> ---

>>  drivers/crypto/hisilicon/Kconfig | 1 +

>>  1 file changed, 1 insertion(+)

> 

> Patch applied.  Thanks.


Thanks :)

>
Ard Biesheuvel Oct. 24, 2019, 1:22 p.m. UTC | #4
On Fri, 11 Oct 2019 at 13:21, Zhou Wang <wangzhou1@hisilicon.com> wrote:
>

> To avoid compile error in some platforms, select NEED_SG_DMA_LENGTH in

> qm Kconfig.

>

> Signed-off-by: Zhou Wang <wangzhou1@hisilicon.com>

> Reported-by: kbuild test robot <lkp@intel.com>

> ---

>  drivers/crypto/hisilicon/Kconfig | 1 +

>  1 file changed, 1 insertion(+)

>

> diff --git a/drivers/crypto/hisilicon/Kconfig b/drivers/crypto/hisilicon/Kconfig

> index 82fb810d..a71f2bf 100644

> --- a/drivers/crypto/hisilicon/Kconfig

> +++ b/drivers/crypto/hisilicon/Kconfig

> @@ -18,6 +18,7 @@ config CRYPTO_DEV_HISI_QM

>         tristate

>         depends on ARM64 || COMPILE_TEST

>         depends on PCI && PCI_MSI

> +       select NEED_SG_DMA_LENGTH

>         help

>           HiSilicon accelerator engines use a common queue management

>           interface. Specific engine driver may use this module.


CONFIG_NEED_SG_DMA_LENGTH shouldn't be set by an arbitrary driver -
the arch code will set this if needed, and if it doesn't, the
additional dma_length field shouldn't be expected to have a meaning.

If you are fixing a COMPILE_TEST failure, just add NEED_SG_DMA_LENGTH
as a dependency, or drop the COMPILE_TEST altogether (why was that
added in the first place?)
Herbert Xu Oct. 24, 2019, 1:56 p.m. UTC | #5
On Thu, Oct 24, 2019 at 03:22:50PM +0200, Ard Biesheuvel wrote:
> 

> If you are fixing a COMPILE_TEST failure, just add NEED_SG_DMA_LENGTH

> as a dependency, or drop the COMPILE_TEST altogether (why was that

> added in the first place?)


Because we want to maximise compiler coverage so that build failures
can be caught at the earliest opportunity.

But a better fix would be to use

	sg_dma_len(sg)

instead of

	sg->dma_length

Cheers,
-- 
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
Zhou Wang Oct. 25, 2019, 1 a.m. UTC | #6
On 2019/10/24 21:56, Herbert Xu wrote:
> On Thu, Oct 24, 2019 at 03:22:50PM +0200, Ard Biesheuvel wrote:

>>

>> If you are fixing a COMPILE_TEST failure, just add NEED_SG_DMA_LENGTH

>> as a dependency, or drop the COMPILE_TEST altogether (why was that

>> added in the first place?)

> 

> Because we want to maximise compiler coverage so that build failures

> can be caught at the earliest opportunity.

> 

> But a better fix would be to use

> 

> 	sg_dma_len(sg)


OK, will do by this. Thanks!

Best,
Zhou

> 

> instead of

> 

> 	sg->dma_length

> 

> Cheers,

>
diff mbox series

Patch

diff --git a/drivers/crypto/hisilicon/Kconfig b/drivers/crypto/hisilicon/Kconfig
index 82fb810d..a71f2bf 100644
--- a/drivers/crypto/hisilicon/Kconfig
+++ b/drivers/crypto/hisilicon/Kconfig
@@ -18,6 +18,7 @@  config CRYPTO_DEV_HISI_QM
 	tristate
 	depends on ARM64 || COMPILE_TEST
 	depends on PCI && PCI_MSI
+	select NEED_SG_DMA_LENGTH
 	help
 	  HiSilicon accelerator engines use a common queue management
 	  interface. Specific engine driver may use this module.