linux-kernel - Re: [PATCH 5.15 000/168] 5.15.176-rc1 review

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Message-ID: <2025010910-hypocrite-handler-1f1b@gregkh>
Date: Thu, 9 Jan 2025 12:10:18 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: Ron Economos <re@...z.net>
Cc: stable@...r.kernel.org, patches@...ts.linux.dev,
	linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, linux@...ck-us.net, shuah@...nel.org,
	patches@...nelci.org, lkft-triage@...ts.linaro.org, pavel@...x.de,
	jonathanh@...dia.com, f.fainelli@...il.com,
	sudipm.mukherjee@...il.com, srw@...dewatkins.net, rwarsow@....de,
	conor@...nel.org, hargar@...rosoft.com, broonie@...nel.org
Subject: Re: [PATCH 5.15 000/168] 5.15.176-rc1 review

On Mon, Jan 06, 2025 at 10:32:32PM -0800, Ron Economos wrote:
> On 1/6/25 07:15, Greg Kroah-Hartman wrote:
> > This is the start of the stable review cycle for the 5.15.176 release.
> > There are 168 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 Wed, 08 Jan 2025 15:11:04 +0000.
> > Anything received after that time might be too late.
> > 
> > The whole patch series can be found in one patch at:
> > 	https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.15.176-rc1.gz
> > or in the git tree and branch at:
> > 	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.15.y
> > and the diffstat can be found below.
> > 
> > thanks,
> > 
> > greg k-h
> 
> On RISC-V, the build fails with:
> 
> In file included from mm/kfence/core.c:33:
> ./arch/riscv/include/asm/kfence.h: In function 'kfence_protect_page':
> ./arch/riscv/include/asm/kfence.h:59:9: error: implicit declaration of
> function 'local_flush_tlb_kernel_range'; did you mean
> 'flush_tlb_kernel_range'? [-Werror=implicit-function-declaration]
>    59 |         local_flush_tlb_kernel_range(addr, addr + PAGE_SIZE);
>       |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
>       |         flush_tlb_kernel_range
> In file included from mm/kfence/report.c:20:
> ./arch/riscv/include/asm/kfence.h: In function 'kfence_protect_page':
> ./arch/riscv/include/asm/kfence.h:59:9: error: implicit declaration of
> function 'local_flush_tlb_kernel_range'; did you mean
> 'flush_tlb_kernel_range'? [-Werror=implicit-function-declaration]
>    59 |         local_flush_tlb_kernel_range(addr, addr + PAGE_SIZE);
>       |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
>       |         flush_tlb_kernel_range
> 
> This is caused by commit d28e50e231ce20a9b9cad9edce139ac775421ce5 riscv: Fix
> IPIs usage in kfence_protect_page().
> 
> The function local_flush_tlb_kernel_range() doesn't exist for RISC-V in
> 5.15.x and doesn't appear until much later in 6.8-rc1. So probably best to
> drop this patch.

Thanks, now dropped.

greg k-h