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Message-Id: <1523987360-18760-10-git-send-email-geert@linux-m68k.org>
Date: Tue, 17 Apr 2018 19:49:09 +0200
From: Geert Uytterhoeven <geert@...ux-m68k.org>
To: Christoph Hellwig <hch@....de>,
Marek Szyprowski <m.szyprowski@...sung.com>,
Robin Murphy <robin.murphy@....com>,
Felipe Balbi <balbi@...nel.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Andrew Morton <akpm@...ux-foundation.org>,
Mark Brown <broonie@...nel.org>,
Liam Girdwood <lgirdwood@...il.com>, Tejun Heo <tj@...nel.org>,
Herbert Xu <herbert@...dor.apana.org.au>,
"David S . Miller" <davem@...emloft.net>,
Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
Stefan Richter <stefanr@...6.in-berlin.de>,
Alan Tull <atull@...nel.org>, Moritz Fischer <mdf@...nel.org>,
Wolfram Sang <wsa@...-dreams.de>,
Jonathan Cameron <jic23@...nel.org>,
Joerg Roedel <joro@...tes.org>,
Matias Bjorling <mb@...htnvm.io>,
Jassi Brar <jassisinghbrar@...il.com>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Ulf Hansson <ulf.hansson@...aro.org>,
David Woodhouse <dwmw2@...radead.org>,
Brian Norris <computersforpeace@...il.com>,
Marek Vasut <marek.vasut@...il.com>,
Cyrille Pitchen <cyrille.pitchen@...ev4u.fr>,
Boris Brezillon <boris.brezillon@...e-electrons.com>,
Richard Weinberger <richard@....at>,
Kalle Valo <kvalo@...eaurora.org>,
Ohad Ben-Cohen <ohad@...ery.com>,
Bjorn Andersson <bjorn.andersson@...aro.org>,
Eric Anholt <eric@...olt.net>,
Stefan Wahren <stefan.wahren@...e.com>
Cc: iommu@...ts.linux-foundation.org, linux-usb@...r.kernel.org,
alsa-devel@...a-project.org, linux-ide@...r.kernel.org,
linux-crypto@...r.kernel.org, linux-fbdev@...r.kernel.org,
linux1394-devel@...ts.sourceforge.net, linux-fpga@...r.kernel.org,
linux-i2c@...r.kernel.org, linux-iio@...r.kernel.org,
linux-block@...r.kernel.org, linux-media@...r.kernel.org,
linux-mmc@...r.kernel.org, linux-mtd@...ts.infradead.org,
netdev@...r.kernel.org, linux-remoteproc@...r.kernel.org,
linux-serial@...r.kernel.org, linux-spi@...r.kernel.org,
devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
Geert Uytterhoeven <geert@...ux-m68k.org>
Subject: [PATCH v3 09/20] iommu: Remove depends on HAS_DMA in case of platform dependency
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 <geert@...ux-m68k.org>
Reviewed-by: Mark Brown <broonie@...nel.org>
Acked-by: Robin Murphy <robin.murphy@....com>
Acked-by: Joerg Roedel <jroedel@...e.de>
---
v3:
- Add Acked-by,
- Rebase to v4.17-rc1,
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 df171cb8582296b9..c76157e57f6ba4ba 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
@@ -376,7 +376,6 @@ 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
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