Re: [PATCH 4.9 000/206] 4.9.291-rc2 review

[Guenter Roeck]

On 11/25/21 4:57 AM, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 4.9.291 release.
> There are 206 patches in this series, all will be posted as a response
> to this one.  If anyone has any issues with these being applied, please
> let me know.
>
> Responses should be made by Sat, 27 Nov 2021 12:56:08 +0000.
> Anything received after that time might be too late.

In file included from arch/sh/mm/init.c:25:
arch/sh/include/asm/tlb.h:118:15: error: return type defaults to 'int' [-Werror=return-type]
  118 | static inline tlb_flush_pmd_range(struct mmu_gather *tlb, unsigned long address,

The problem affects v4.9.y, v4.14.y, and v4.19.y.

Commit aca917cb287ba99c5 ("hugetlbfs: flush TLBs correctly after huge_pmd_unshare")
doesn't really match the upstream commit and obviously was not even build tested
on sh (and I would suspect it was not tested on other architectures either).
It seems to me that it may do more harm than good.

Guenter