2020-04-30 16:21:55

by Guixiong Wei

Subject: [PATCH v2] arm: mm: use __pfn_to_section() to get mem_section

__pfn_to_section() helper which already wraps around
__nr_to_section(pfn_to_section_nr(pfn)), should be used
directly instead.

Signed-off-by: Guixiong Wei <[email protected]>
---

v1 -> v2
- reword the commit message.

---
arch/arm64/mm/init.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index e42727e3568e..d2df416b840e 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -272,7 +272,7 @@ int pfn_valid(unsigned long pfn)
if (pfn_to_section_nr(pfn) >= NR_MEM_SECTIONS)
return 0;

- if (!valid_section(__nr_to_section(pfn_to_section_nr(pfn))))
+ if (!valid_section(__pfn_to_section(pfn)))
return 0;
#endif
return memblock_is_map_memory(addr);
--
2.17.1

2020-04-30 21:17:43

by Will Deacon

Subject: Re: [PATCH v2] arm: mm: use __pfn_to_section() to get mem_section

On Fri, 1 May 2020 06:18:58 +1400, Guixiong Wei wrote:
> __pfn_to_section() helper which already wraps around
> __nr_to_section(pfn_to_section_nr(pfn)), should be used
> directly instead.

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

[1/1] arm: mm: use __pfn_to_section() to get mem_section
https://git.kernel.org/arm64/c/037d9303a7e7

Cheers,
--
Will

https://fixes.arm64.dev
https://next.arm64.dev