linux-kernel - Re: [PATCH AUTOSEL 4.19 41/47] arm64/sve: Add stub for sve_max_virtualisable

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <YZEXUO2IN5pHFnPB@sashalap>
Date:   Sun, 14 Nov 2021 09:04:00 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     Catalin Marinas <catalin.marinas@....com>
Cc:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        Mark Brown <broonie@...nel.org>, Will Deacon <will@...nel.org>,
        maz@...nel.org, Dave.Martin@....com, tanxiaofei@...wei.com,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH AUTOSEL 4.19 41/47] arm64/sve: Add stub for
 sve_max_virtualisable_vl()

On Tue, Nov 09, 2021 at 01:20:44PM +0000, Catalin Marinas wrote:
>On Mon, Nov 08, 2021 at 12:50:25PM -0500, Sasha Levin wrote:
>> From: Mark Brown <broonie@...nel.org>
>>
>> [ Upstream commit 49ed920408f85fb143020cf7d95612b6b12a84a2 ]
>>
>> Fixes build problems for configurations with KVM enabled but SVE disabled.
>>
>> Reported-by: Catalin Marinas <catalin.marinas@....com>
>> Signed-off-by: Mark Brown <broonie@...nel.org>
>> Link: https://lore.kernel.org/r/20211022141635.2360415-2-broonie@kernel.org
>> Signed-off-by: Will Deacon <will@...nel.org>
>> Signed-off-by: Sasha Levin <sashal@...nel.org>
>> ---
>>  arch/arm64/include/asm/fpsimd.h | 5 +++++
>>  1 file changed, 5 insertions(+)
>>
>> diff --git a/arch/arm64/include/asm/fpsimd.h b/arch/arm64/include/asm/fpsimd.h
>> index dd1ad3950ef5d..5bd799ea683b4 100644
>> --- a/arch/arm64/include/asm/fpsimd.h
>> +++ b/arch/arm64/include/asm/fpsimd.h
>> @@ -130,6 +130,11 @@ static inline void fpsimd_release_task(struct task_struct *task) { }
>>  static inline void sve_sync_to_fpsimd(struct task_struct *task) { }
>>  static inline void sve_sync_from_fpsimd_zeropad(struct task_struct *task) { }
>>
>> +static inline int sve_max_virtualisable_vl(void)
>> +{
>> +	return 0;
>> +}
>
>IIRC this fix was only needed for 5.16-rc1.

I'll drop it, thanks!

-- 
Thanks,
Sasha