* [GIT PULL] memblock, arm: fixup for the pfn_valid() rework for v5.14-rc1
@ 2021-07-09 18:46 Mike Rapoport
2021-07-10 17:35 ` pr-tracker-bot
0 siblings, 1 reply; 2+ messages in thread
From: Mike Rapoport @ 2021-07-09 18:46 UTC (permalink / raw)
To: Linus Torvalds
Cc: Andrew Morton, Kefeng Wang, Guenter Roeck, Mike Rapoport,
Mike Rapoport, Russell King, linux-arm-kernel, linux-kernel,
linux-mm
Hi Linus,
This is a fix for the rework of ARM's pfn_valid() implementation merged
during this merge window.
The following changes since commit a180bd1d7e16173d965b263c5a536aa40afa2a2a:
iov_iter: remove uaccess_kernel() warning from iov_iter_init() (2021-07-04 16:12:42 -0700)
are available in the Git repository at:
https://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock.git tags/fixes-2021-07-09
for you to fetch changes up to 024591f9a6e0164ec23301784d1e6d8f6cacbe59:
arm: ioremap: don't abuse pfn_valid() to check if pfn is in RAM (2021-07-06 09:01:47 +0300)
----------------------------------------------------------------
arm: ioremap: don't abuse pfn_valid() to check if pfn is in RAM
The semantics of pfn_valid() is to check presence of the memory map for a
PFN and not whether a PFN is in RAM. The memory map may be present for a
hole in the physical memory and if such hole corresponds to an MMIO range,
__arm_ioremap_pfn_caller() will produce a WARN() and fail:
Use memblock_is_map_memory() instead of pfn_valid() to check if a PFN is in
RAM or not.
----------------------------------------------------------------
Mike Rapoport (1):
arm: ioremap: don't abuse pfn_valid() to check if pfn is in RAM
arch/arm/mm/ioremap.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--
Sincerely yours,
Mike.
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [GIT PULL] memblock, arm: fixup for the pfn_valid() rework for v5.14-rc1
2021-07-09 18:46 [GIT PULL] memblock, arm: fixup for the pfn_valid() rework for v5.14-rc1 Mike Rapoport
@ 2021-07-10 17:35 ` pr-tracker-bot
0 siblings, 0 replies; 2+ messages in thread
From: pr-tracker-bot @ 2021-07-10 17:35 UTC (permalink / raw)
To: Mike Rapoport
Cc: Linus Torvalds, Andrew Morton, Kefeng Wang, Guenter Roeck,
Mike Rapoport, Mike Rapoport, Russell King, linux-arm-kernel,
linux-kernel, linux-mm
The pull request you sent on Fri, 9 Jul 2021 21:46:33 +0300:
> https://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock.git tags/fixes-2021-07-09
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/b6fd9e259457b847646844ed202b830e585289dd
Thank you!
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