* [PATCH] swiotlb: use depends on for DMA_RESTRICTED_POOL
@ 2021-08-27 3:48 Claire Chang
2021-08-31 15:17 ` Will Deacon
0 siblings, 1 reply; 3+ messages in thread
From: Claire Chang @ 2021-08-27 3:48 UTC (permalink / raw)
To: hch, m.szyprowski, robin.murphy, konrad.wilk
Cc: iommu, linux-kernel, linux, Claire Chang
Use depends on instead of select for DMA_RESTRICTED_POOL; otherwise it
will make SWIOTLB user configurable and cause compile errors for some
arch (e.g. mips).
Fixes: 0b84e4f8b793 ("swiotlb: Add restricted DMA pool initialization")
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Claire Chang <tientzu@chromium.org>
---
kernel/dma/Kconfig | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/kernel/dma/Kconfig b/kernel/dma/Kconfig
index fd4db714d86b..1b02179758cb 100644
--- a/kernel/dma/Kconfig
+++ b/kernel/dma/Kconfig
@@ -82,8 +82,7 @@ config SWIOTLB
config DMA_RESTRICTED_POOL
bool "DMA Restricted Pool"
- depends on OF && OF_RESERVED_MEM
- select SWIOTLB
+ depends on OF && OF_RESERVED_MEM && SWIOTLB
help
This enables support for restricted DMA pools which provide a level of
DMA memory protection on systems with limited hardware protection
--
2.33.0.259.gc128427fd7-goog
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] swiotlb: use depends on for DMA_RESTRICTED_POOL
2021-08-27 3:48 [PATCH] swiotlb: use depends on for DMA_RESTRICTED_POOL Claire Chang
@ 2021-08-31 15:17 ` Will Deacon
2021-08-31 18:49 ` Konrad Rzeszutek Wilk
0 siblings, 1 reply; 3+ messages in thread
From: Will Deacon @ 2021-08-31 15:17 UTC (permalink / raw)
To: Claire Chang
Cc: hch, m.szyprowski, robin.murphy, konrad.wilk, iommu, linux-kernel, linux
On Fri, Aug 27, 2021 at 11:48:02AM +0800, Claire Chang wrote:
> Use depends on instead of select for DMA_RESTRICTED_POOL; otherwise it
> will make SWIOTLB user configurable and cause compile errors for some
> arch (e.g. mips).
>
> Fixes: 0b84e4f8b793 ("swiotlb: Add restricted DMA pool initialization")
> Reported-by: Guenter Roeck <linux@roeck-us.net>
> Signed-off-by: Claire Chang <tientzu@chromium.org>
> ---
> kernel/dma/Kconfig | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/kernel/dma/Kconfig b/kernel/dma/Kconfig
> index fd4db714d86b..1b02179758cb 100644
> --- a/kernel/dma/Kconfig
> +++ b/kernel/dma/Kconfig
> @@ -82,8 +82,7 @@ config SWIOTLB
>
> config DMA_RESTRICTED_POOL
> bool "DMA Restricted Pool"
> - depends on OF && OF_RESERVED_MEM
> - select SWIOTLB
> + depends on OF && OF_RESERVED_MEM && SWIOTLB
> help
> This enables support for restricted DMA pools which provide a level of
> DMA memory protection on systems with limited hardware protection
Acked-by: Will Deacon <will@kernel.org>
Will
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] swiotlb: use depends on for DMA_RESTRICTED_POOL
2021-08-31 15:17 ` Will Deacon
@ 2021-08-31 18:49 ` Konrad Rzeszutek Wilk
0 siblings, 0 replies; 3+ messages in thread
From: Konrad Rzeszutek Wilk @ 2021-08-31 18:49 UTC (permalink / raw)
To: Will Deacon
Cc: Claire Chang, hch, m.szyprowski, robin.murphy, iommu,
linux-kernel, linux
On Tue, Aug 31, 2021 at 04:17:47PM +0100, Will Deacon wrote:
> On Fri, Aug 27, 2021 at 11:48:02AM +0800, Claire Chang wrote:
> > Use depends on instead of select for DMA_RESTRICTED_POOL; otherwise it
> > will make SWIOTLB user configurable and cause compile errors for some
> > arch (e.g. mips).
> >
> > Fixes: 0b84e4f8b793 ("swiotlb: Add restricted DMA pool initialization")
> > Reported-by: Guenter Roeck <linux@roeck-us.net>
> > Signed-off-by: Claire Chang <tientzu@chromium.org>
> > ---
> > kernel/dma/Kconfig | 3 +--
> > 1 file changed, 1 insertion(+), 2 deletions(-)
> >
> > diff --git a/kernel/dma/Kconfig b/kernel/dma/Kconfig
> > index fd4db714d86b..1b02179758cb 100644
> > --- a/kernel/dma/Kconfig
> > +++ b/kernel/dma/Kconfig
> > @@ -82,8 +82,7 @@ config SWIOTLB
> >
> > config DMA_RESTRICTED_POOL
> > bool "DMA Restricted Pool"
> > - depends on OF && OF_RESERVED_MEM
> > - select SWIOTLB
> > + depends on OF && OF_RESERVED_MEM && SWIOTLB
> > help
> > This enables support for restricted DMA pools which provide a level of
> > DMA memory protection on systems with limited hardware protection
>
> Acked-by: Will Deacon <will@kernel.org>
I put it in linux-next and devel/for-linus-5.15.
I will wait a day and see if there are any issues with linux-next and if
not will send out a GIT pull.
Thanks!
>
> Will
^ permalink raw reply [flat|nested] 3+ messages in thread
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2021-08-27 3:48 [PATCH] swiotlb: use depends on for DMA_RESTRICTED_POOL Claire Chang
2021-08-31 15:17 ` Will Deacon
2021-08-31 18:49 ` Konrad Rzeszutek Wilk
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