Thread (15 messages) 15 messages, 4 authors, 2019-06-13

Re: [PATCH v8 2/7] x86/dma: use IS_ENABLED() to simplify the code

From: Borislav Petkov <bp@alien8.de>
Date: 2019-06-12 05:16:35
Also in: linux-iommu, linux-s390, linuxppc-dev, lkml

On Thu, May 30, 2019 at 11:48:26AM +0800, Zhen Lei wrote:
This patch removes the ifdefs around CONFIG_IOMMU_DEFAULT_PASSTHROUGH to
improve readablity.
Avoid having "This patch" or "This commit" in the commit message. It is
tautologically useless.

Also, do

$ git grep 'This patch' Documentation/process

for more details.
quoted hunk ↗ jump to hunk
Signed-off-by: Zhen Lei <redacted>
---
 arch/x86/kernel/pci-dma.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index dcd272dbd0a9330..9f2b19c35a060df 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -43,11 +43,8 @@
  * It is also possible to disable by default in kernel config, and enable with
  * iommu=nopt at boot time.
  */
-#ifdef CONFIG_IOMMU_DEFAULT_PASSTHROUGH
-int iommu_pass_through __read_mostly = 1;
-#else
-int iommu_pass_through __read_mostly;
-#endif
+int iommu_pass_through __read_mostly =
+			IS_ENABLED(CONFIG_IOMMU_DEFAULT_PASSTHROUGH);
Let that line stick out.

Thx.

-- 
Regards/Gruss,
    Boris.

Good mailing practices for 400: avoid top-posting and trim the reply.
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