From: Suravee Suthikulanit <suravee.suthikulpanit@amd.com>
To: Arnd Bergmann <arnd@arndb.de>, <linaro-acpi@lists.linaro.org>
Cc: <linux-arm-kernel@lists.infradead.org>,
<herbert@gondor.apana.org.au>, <catalin.marinas@arm.com>,
<rjw@rjwysocki.net>, <linux-kernel@vger.kernel.org>,
<will.deacon@arm.com>, <linux-crypto@vger.kernel.org>,
<linux-acpi@vger.kernel.org>, <netdev@vger.kernel.org>,
<davem@davemloft.net>, <lenb@kernel.org>
Subject: Re: [Linaro-acpi] [V2 PATCH 2/5] arm64 : Introduce support for ACPI _CCA object
Date: Tue, 5 May 2015 11:13:59 -0500 [thread overview]
Message-ID: <5548EC47.3020501@amd.com> (raw)
In-Reply-To: <8157862.NJP1L4Rh25@wuerfel>
On 5/5/2015 11:12 AM, Arnd Bergmann wrote:
> On Tuesday 05 May 2015 11:09:38 Suravee Suthikulanit wrote:
>>
>> However, codes in several places are making use of dma_map_ops without
>> checking if the ops are NULL (i.e.
>> include/asm-generic/dma-mapping-common.h and in arch-specific
>> implementation). If setting it to NULL is what we are planning to
>> support, we would need to scrub the current code to put NULL check.
>> Also, would you consider if that is safe to do going forward?
>>
>>
>
> I mean the dma_mask pointer, not dma_map_ops.
>
> Arnd
>
Ah, got it. Sorry for confusion.
Suravee
WARNING: multiple messages have this Message-ID (diff)
From: Suravee Suthikulanit <suravee.suthikulpanit@amd.com>
To: Arnd Bergmann <arnd@arndb.de>, linaro-acpi@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org,
herbert@gondor.apana.org.au, catalin.marinas@arm.com,
rjw@rjwysocki.net, linux-kernel@vger.kernel.org,
will.deacon@arm.com, linux-crypto@vger.kernel.org,
linux-acpi@vger.kernel.org, netdev@vger.kernel.org,
davem@davemloft.net, lenb@kernel.org
Subject: Re: [Linaro-acpi] [V2 PATCH 2/5] arm64 : Introduce support for ACPI _CCA object
Date: Tue, 5 May 2015 11:13:59 -0500 [thread overview]
Message-ID: <5548EC47.3020501@amd.com> (raw)
In-Reply-To: <8157862.NJP1L4Rh25@wuerfel>
On 5/5/2015 11:12 AM, Arnd Bergmann wrote:
> On Tuesday 05 May 2015 11:09:38 Suravee Suthikulanit wrote:
>>
>> However, codes in several places are making use of dma_map_ops without
>> checking if the ops are NULL (i.e.
>> include/asm-generic/dma-mapping-common.h and in arch-specific
>> implementation). If setting it to NULL is what we are planning to
>> support, we would need to scrub the current code to put NULL check.
>> Also, would you consider if that is safe to do going forward?
>>
>>
>
> I mean the dma_mask pointer, not dma_map_ops.
>
> Arnd
>
Ah, got it. Sorry for confusion.
Suravee
WARNING: multiple messages have this Message-ID (diff)
From: suravee.suthikulpanit@amd.com (Suravee Suthikulanit)
To: linux-arm-kernel@lists.infradead.org
Subject: [Linaro-acpi] [V2 PATCH 2/5] arm64 : Introduce support for ACPI _CCA object
Date: Tue, 5 May 2015 11:13:59 -0500 [thread overview]
Message-ID: <5548EC47.3020501@amd.com> (raw)
In-Reply-To: <8157862.NJP1L4Rh25@wuerfel>
On 5/5/2015 11:12 AM, Arnd Bergmann wrote:
> On Tuesday 05 May 2015 11:09:38 Suravee Suthikulanit wrote:
>>
>> However, codes in several places are making use of dma_map_ops without
>> checking if the ops are NULL (i.e.
>> include/asm-generic/dma-mapping-common.h and in arch-specific
>> implementation). If setting it to NULL is what we are planning to
>> support, we would need to scrub the current code to put NULL check.
>> Also, would you consider if that is safe to do going forward?
>>
>>
>
> I mean the dma_mask pointer, not dma_map_ops.
>
> Arnd
>
Ah, got it. Sorry for confusion.
Suravee
next prev parent reply other threads:[~2015-05-05 16:13 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-05 15:12 [V2 PATCH 0/5] Introduce ACPI _CCA support and device_dma_is_coherent API Suravee Suthikulpanit
2015-05-05 15:12 ` Suravee Suthikulpanit
2015-05-05 15:12 ` Suravee Suthikulpanit
2015-05-05 15:12 ` Suravee Suthikulpanit
2015-05-05 15:12 ` [V2 PATCH 1/5] ACPI / scan: Parse _CCA and setup device coherency Suravee Suthikulpanit
2015-05-05 15:12 ` Suravee Suthikulpanit
2015-05-05 15:12 ` Suravee Suthikulpanit
2015-05-05 15:12 ` Suravee Suthikulpanit
2015-05-05 20:36 ` Rafael J. Wysocki
2015-05-05 20:36 ` Rafael J. Wysocki
2015-05-06 4:15 ` Suravee Suthikulpanit
2015-05-06 4:15 ` Suravee Suthikulpanit
2015-05-06 4:15 ` Suravee Suthikulpanit
2015-05-06 22:21 ` Rafael J. Wysocki
2015-05-06 22:21 ` Rafael J. Wysocki
2015-05-06 22:16 ` Suravee Suthikulanit
2015-05-06 22:16 ` Suravee Suthikulanit
2015-05-06 22:16 ` Suravee Suthikulanit
2015-05-07 9:07 ` [Linaro-acpi] " Arnd Bergmann
2015-05-07 9:07 ` Arnd Bergmann
2015-05-07 20:18 ` Rafael J. Wysocki
2015-05-07 20:18 ` Rafael J. Wysocki
2015-05-06 3:13 ` Hanjun Guo
2015-05-06 3:13 ` Hanjun Guo
2015-05-06 4:17 ` Suravee Suthikulpanit
2015-05-06 4:17 ` Suravee Suthikulpanit
2015-05-06 4:17 ` Suravee Suthikulpanit
2015-05-05 15:12 ` [V2 PATCH 2/5] arm64 : Introduce support for ACPI _CCA object Suravee Suthikulpanit
2015-05-05 15:12 ` Suravee Suthikulpanit
2015-05-05 15:12 ` Suravee Suthikulpanit
2015-05-05 15:12 ` Suravee Suthikulpanit
2015-05-05 15:44 ` Arnd Bergmann
2015-05-05 15:44 ` Arnd Bergmann
2015-05-05 15:44 ` Arnd Bergmann
2015-05-05 16:09 ` Suravee Suthikulanit
2015-05-05 16:09 ` Suravee Suthikulanit
2015-05-05 16:09 ` Suravee Suthikulanit
2015-05-05 16:09 ` Suravee Suthikulanit
2015-05-05 16:12 ` [Linaro-acpi] " Arnd Bergmann
2015-05-05 16:12 ` Arnd Bergmann
2015-05-05 16:13 ` Suravee Suthikulanit [this message]
2015-05-05 16:13 ` Suravee Suthikulanit
2015-05-05 16:13 ` Suravee Suthikulanit
2015-05-05 16:24 ` Tom Lendacky
2015-05-05 16:24 ` Tom Lendacky
2015-05-05 16:24 ` Tom Lendacky
2015-05-05 18:02 ` Arnd Bergmann
2015-05-05 18:02 ` Arnd Bergmann
2015-05-06 10:08 ` Robin Murphy
2015-05-06 10:08 ` Robin Murphy
2015-05-06 10:08 ` Robin Murphy
2015-05-06 14:34 ` Suravee Suthikulanit
2015-05-06 14:34 ` Suravee Suthikulanit
2015-05-06 14:34 ` Suravee Suthikulanit
2015-05-05 15:12 ` [V2 PATCH 3/5] device property: Introduces device_dma_is_coherent() Suravee Suthikulpanit
2015-05-05 15:12 ` Suravee Suthikulpanit
2015-05-05 15:12 ` Suravee Suthikulpanit
2015-05-05 15:12 ` Suravee Suthikulpanit
2015-05-06 23:52 ` Suravee Suthikulanit
2015-05-06 23:52 ` Suravee Suthikulanit
2015-05-06 23:52 ` Suravee Suthikulanit
2015-05-06 23:58 ` Rafael J. Wysocki
2015-05-06 23:58 ` Rafael J. Wysocki
2015-05-06 23:58 ` Rafael J. Wysocki
2015-05-05 15:12 ` [V2 PATCH 4/5] crypto: ccp - Unify coherency checking logic with device_dma_is_coherent() Suravee Suthikulpanit
2015-05-05 15:12 ` Suravee Suthikulpanit
2015-05-05 15:12 ` Suravee Suthikulpanit
2015-05-05 15:12 ` Suravee Suthikulpanit
2015-05-05 15:12 ` [V2 PATCH 5/5] amd-xgbe: " Suravee Suthikulpanit
2015-05-05 15:12 ` Suravee Suthikulpanit
2015-05-05 15:12 ` Suravee Suthikulpanit
2015-05-05 15:12 ` Suravee Suthikulpanit
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