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[0/2] arm64: retry dropping HAVE_ARCH_PFN_VALID

Message ID 20210930013039.11260-1-rppt@kernel.org (mailing list archive)
Headers show
Series arm64: retry dropping HAVE_ARCH_PFN_VALID | expand

Message

Mike Rapoport Sept. 30, 2021, 1:30 a.m. UTC
From: Mike Rapoport <rppt@linux.ibm.com>

Hi,

This is a new attempt to drop HAVE_ARCH_PFN_VALID on arm64 and start using
the generic implementation of pfn_valid().

The first patch removes the check for pfn_valid() in dma_map_resource()
which is required to avoid false positives when there is memory map for
MMIO.

Anshuman Khandual (1):
  arm64/mm: drop HAVE_ARCH_PFN_VALID

Mike Rapoport (1):
  dma-mapping: remove bogus test for pfn_valid from dma_map_resource

 arch/arm64/Kconfig            |  1 -
 arch/arm64/include/asm/page.h |  1 -
 arch/arm64/mm/init.c          | 37 -----------------------------------
 kernel/dma/mapping.c          |  4 ----
 4 files changed, 43 deletions(-)


base-commit: 5816b3e6577eaa676ceb00a848f0fd65fe2adc29

Comments

Will Deacon Oct. 1, 2021, 2:01 p.m. UTC | #1
On Thu, 30 Sep 2021 04:30:37 +0300, Mike Rapoport wrote:
> From: Mike Rapoport <rppt@linux.ibm.com>
> 
> Hi,
> 
> This is a new attempt to drop HAVE_ARCH_PFN_VALID on arm64 and start using
> the generic implementation of pfn_valid().
> 
> [...]

Applied to arm64 (for-next/pfn-valid), thanks!

[1/2] dma-mapping: remove bogus test for pfn_valid from dma_map_resource
      https://git.kernel.org/arm64/c/a9c38c5d267c
[2/2] arm64/mm: drop HAVE_ARCH_PFN_VALID
      https://git.kernel.org/arm64/c/3de360c3fdb3

Cheers,