From mboxrd@z Thu Jan 1 00:00:00 1970 From: tony@atomide.com (Tony Lindgren) Date: Mon, 27 Sep 2010 09:24:20 -0700 Subject: [PATCH 05/11] omap3: Remove non-existent config option In-Reply-To: References: <20100924014938.10325.35279.stgit@baageli.muru.com> <20100924015056.10325.95854.stgit@baageli.muru.com> Message-ID: <20100927162420.GU4211@atomide.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org * Felipe Contreras [100927 08:47]: > On Mon, Sep 27, 2010 at 2:02 PM, Marathe, Yogesh wrote: > >> When you merge iommu support, then either you enable > >> CONFIG_MPU_BRIDGE_IOMMU unconditionally, or you apply this patch, but > >> this patch alone will only break things. > > > > Any other driver which does not depend on bridge and interested in using iommu should get the handle when iommu_get("iva2") is called. > > That's a hypothetical driver, right? The only driver that would ever > be interested in the "iva2" iommu is tidspbridge, and this patch would > brake it. > > > It is not happening in original case. I think there should not be restrictions on other drivers to define un-related compile time define if they just want to use iommu driver. I feel the implementation that is breaking due to removal of this define should be fixed. > > I couldn't parse that correctly. However, what's wrong with the > proposal? Let's think about CONFIG_MPU_BRIDGE_IOMMU when the iommu > patches come. Let's not break the existing code. Dropping this patch for now. Tony