From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AG47ELsFE7Gi9AuC3c9zxDknNxUaaoRMqDqKyLAGRSs2J/gAps8NRyiCRPURs+W+auUcruO63ptN ARC-Seal: i=1; a=rsa-sha256; t=1521210023; cv=none; d=google.com; s=arc-20160816; b=Tng80GAWYVBDKgcvyVHJdPNJmBLUwI74TK/qh6SDdkbbybPBfRVQBoqEfvYWR+KCUj 4SPDbdtFgU6ztP2Dp4oJ2e1GxaR77QerkI8onnmdmURwm3KTj+SF6fL7I9N7SQCaP7ko m5XFRDTw/pjIcJQohDaQPd7ij6gWMDDgsYMDvmi3aj07jv+qWtk3ygCIBBxEcbqOMJhh De/obkAv/+uwMvuvXejgWlLWDKewo7h4kcDi598aovRtSEtk2UabZ7Ji83FfyLCLT1En avFS1OflZWffHBnat3CR35m4xSDR82Y/7PZOlqgBewe8oQBZg61OlUGAZi1zJQAXHc8V +i3Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=references:in-reply-to:message-id:date:subject:cc:to:from :arc-authentication-results; bh=oCC6hkeKdJSCKfhfkcFCAULQx45371DwHmK69NKNe58=; b=jDdM/xthcbSQh4g4unMCUIR1j4wx05hNyrH74ziiHj291tujDg3M+T+V1UiEz7yqvz VFn4J7glrtPhspnYJc96TM7/mR2wWcp+g6CpAyhUt+/XY5tpMbdKMK0S9LBcrUewATC4 LqT+CeRBn7asFh833fEX4sQMwhI+N1WY1/A09oE/qy2KRqSCs/W7q7+V95cIes1JT1QK RlfvyaPsd8rRNzKmkulHKuY2VMg0dVwmE8dr20CA8Evu/GY5Vt0jT7trIPZDc12T7DDC h7vAMC0i2cz54o2VjrXm7L/OFKsGOtrURImFVgypsWv18RsbpimInrbJvZQ80Ei8b8H+ 55NA== ARC-Authentication-Results: i=1; mx.google.com; spf=neutral (google.com: 2a02:1800:110:4::f00:19 is neither permitted nor denied by best guess record for domain of geert@linux-m68k.org) smtp.mailfrom=geert@linux-m68k.org Authentication-Results: mx.google.com; spf=neutral (google.com: 2a02:1800:110:4::f00:19 is neither permitted nor denied by best guess record for domain of geert@linux-m68k.org) smtp.mailfrom=geert@linux-m68k.org From: Geert Uytterhoeven To: Christoph Hellwig , Marek Szyprowski , Robin Murphy , Felipe Balbi , Greg Kroah-Hartman , "James E . J . Bottomley" , "Martin K . Petersen" , Andrew Morton , Mark Brown , Liam Girdwood , Tejun Heo , Herbert Xu , "David S . Miller" , Bartlomiej Zolnierkiewicz , Stefan Richter , Alan Tull , Moritz Fischer , Wolfram Sang , Jonathan Cameron , Joerg Roedel , Matias Bjorling , Jassi Brar , Mauro Carvalho Chehab , Ulf Hansson , David Woodhouse , Brian Norris , Marek Vasut , Cyrille Pitchen , Boris Brezillon , Richard Weinberger , Kalle Valo , Ohad Ben-Cohen , Bjorn Andersson , Eric Anholt , Stefan Wahren Cc: iommu@lists.linux-foundation.org, linux-usb@vger.kernel.org, linux-scsi@vger.kernel.org, alsa-devel@alsa-project.org, linux-ide@vger.kernel.org, linux-crypto@vger.kernel.org, linux-fbdev@vger.kernel.org, linux1394-devel@lists.sourceforge.net, linux-fpga@vger.kernel.org, linux-i2c@vger.kernel.org, linux-iio@vger.kernel.org, linux-block@vger.kernel.org, linux-media@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, netdev@vger.kernel.org, linux-remoteproc@vger.kernel.org, linux-serial@vger.kernel.org, linux-spi@vger.kernel.org, devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org, Geert Uytterhoeven Subject: [PATCH v2 09/21] iommu: Remove depends on HAS_DMA in case of platform dependency Date: Fri, 16 Mar 2018 14:51:42 +0100 Message-Id: <1521208314-4783-10-git-send-email-geert@linux-m68k.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1521208314-4783-1-git-send-email-geert@linux-m68k.org> References: <1521208314-4783-1-git-send-email-geert@linux-m68k.org> X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: =?utf-8?q?1595104321000579025?= X-GMAIL-MSGID: =?utf-8?q?1595104321000579025?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: Remove dependencies on HAS_DMA where a Kconfig symbol depends on another symbol that implies HAS_DMA, and, optionally, on "|| COMPILE_TEST". In most cases this other symbol is an architecture or platform specific symbol, or PCI. Generic symbols and drivers without platform dependencies keep their dependencies on HAS_DMA, to prevent compiling subsystems or drivers that cannot work anyway. This simplifies the dependencies, and allows to improve compile-testing. Signed-off-by: Geert Uytterhoeven Reviewed-by: Mark Brown Acked-by: Robin Murphy --- v2: - Add Reviewed-by, Acked-by, - Drop RFC state, - Split per subsystem. --- drivers/iommu/Kconfig | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig index f3a21343e636a8f2..32e91398c0555272 100644 --- a/drivers/iommu/Kconfig +++ b/drivers/iommu/Kconfig @@ -23,7 +23,7 @@ config IOMMU_IO_PGTABLE config IOMMU_IO_PGTABLE_LPAE bool "ARMv7/v8 Long Descriptor Format" select IOMMU_IO_PGTABLE - depends on HAS_DMA && (ARM || ARM64 || (COMPILE_TEST && !GENERIC_ATOMIC64)) + depends on ARM || ARM64 || (COMPILE_TEST && !GENERIC_ATOMIC64) help Enable support for the ARM long descriptor pagetable format. This allocator supports 4K/2M/1G, 16K/32M and 64K/512M page @@ -42,7 +42,7 @@ config IOMMU_IO_PGTABLE_LPAE_SELFTEST config IOMMU_IO_PGTABLE_ARMV7S bool "ARMv7/v8 Short Descriptor Format" select IOMMU_IO_PGTABLE - depends on HAS_DMA && (ARM || ARM64 || COMPILE_TEST) + depends on ARM || ARM64 || COMPILE_TEST help Enable support for the ARM Short-descriptor pagetable format. This supports 32-bit virtual and physical addresses mapped using @@ -374,7 +374,6 @@ config QCOM_IOMMU # Note: iommu drivers cannot (yet?) be built as modules bool "Qualcomm IOMMU Support" depends on ARCH_QCOM || (COMPILE_TEST && !GENERIC_ATOMIC64) - depends on HAS_DMA select IOMMU_API select IOMMU_IO_PGTABLE_LPAE select ARM_DMA_USE_IOMMU -- 2.7.4