From mboxrd@z Thu Jan 1 00:00:00 1970 From: r.sricharan@ti.com (R, Sricharan) Date: Wed, 12 Sep 2012 18:50:00 +0530 Subject: [RFC PATCH] ARM: mm: ADD descriptor string to CONFIG_DMA_ADDR_64BIT_T In-Reply-To: References: <1347429006-10879-1-git-send-email-r.sricharan@ti.com> <5050841A.7030203@ti.com> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi, On Wed, Sep 12, 2012 at 6:27 PM, Shilimkar, Santosh wrote: > On Wed, Sep 12, 2012 at 6:16 PM, Cyril Chemparathy wrote: >> >> On 9/12/2012 1:50 AM, R Sricharan wrote: >>> >>> Even if CONFIG_DMA_ADDR_64BIT_T is enabled by the defconfig, >>> the feature is not getting selected. >>> Adding a string description in the Kconfig resolves this. >>> >>> But not sure if this is the right way to fix this. >>> >> >> Shouldn't you be selecting this in your 64-bit dma address capable arch >> instead? >> > Yes. The selection to enable CONFIG_DMA_ADDR_64BIT_T happens > in the arch which needs it. Since this option was made as simple bool, > looks like because of some KCONFIG magic, it was not getting selected. > Adding some help text does fix the issue and thats is the patch all about. > Correct. So even if you select this in the arch/defconfig, today this option is not getting enabled in the finally generated .config. So by adding this description text, this can really be selected from arch level. Thanks, Sricharan