linux-kernel - Re: [RFC PATCH 9/9] selftests: riscv: Add a pointer masking test

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Date: Wed, 20 Mar 2024 13:04:33 -0500
From: Samuel Holland <samuel.holland@...ive.com>
To: Conor Dooley <conor@...nel.org>
Cc: Palmer Dabbelt <palmer@...belt.com>, linux-riscv@...ts.infradead.org,
 devicetree@...r.kernel.org, Catalin Marinas <catalin.marinas@....com>,
 linux-kernel@...r.kernel.org, tech-j-ext@...ts.risc-v.org,
 kasan-dev@...glegroups.com, Evgenii Stepanov <eugenis@...gle.com>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Rob Herring <robh+dt@...nel.org>, Albert Ou <aou@...s.berkeley.edu>,
 Shuah Khan <shuah@...nel.org>
Subject: Re: [RFC PATCH 9/9] selftests: riscv: Add a pointer masking test

Hi Conor,

On 2024-03-20 12:21 PM, Conor Dooley wrote:
> On Tue, Mar 19, 2024 at 02:58:35PM -0700, Samuel Holland wrote:
>> This test covers the behavior of the PR_SET_TAGGED_ADDR_CTRL and
>> PR_GET_TAGGED_ADDR_CTRL prctl() operations, their effects on the
>> userspace ABI, and their effects on the system call ABI.
>>
>> Signed-off-by: Samuel Holland <samuel.holland@...ive.com>
>> ---
>>
>>  tools/testing/selftests/riscv/Makefile        |   2 +-
>>  tools/testing/selftests/riscv/tags/Makefile   |  10 +
>>  .../selftests/riscv/tags/pointer_masking.c    | 307 ++++++++++++++++++
> 
> I dunno much about selftests, but this patch seems to produce some
> warnings about gitignores with allmodconfig:
> tools/testing/selftests/riscv/tags/Makefile: warning: ignored by one of the .gitignore files
> tools/testing/selftests/riscv/tags/pointer_masking.c: warning: ignored by one of the .gitignore files

This is because the "tags" directory name is ignored by the top-level
gitignore. I chose the name to match tools/testing/selftests/arm64/tags, but I
am fine with renaming it to avoid the warning.

Regards,
Samuel