Re: [PATCH -next v13 10/19] riscv: Allocate user's vector context in the first-use trap

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Subject: Re: [PATCH -next v13 10/19] riscv: Allocate user's vector context in the first-use trap
From: Andy Chiu <andy.chiu@xxxxxxxxxx>
Date: Fri, 10 Feb 2023 20:00:00 +0800
Cc: linux-riscv@xxxxxxxxxxxxxxxxxxx, palmer@xxxxxxxxxxx, anup@xxxxxxxxxxxxxx, atishp@xxxxxxxxxxxxxx, kvm-riscv@xxxxxxxxxxxxxxxxxxx, kvm@xxxxxxxxxxxxxxx, vineetg@xxxxxxxxxxxx, greentime.hu@xxxxxxxxxx, guoren@xxxxxxxxxxxxxxxxx, Paul Walmsley <paul.walmsley@xxxxxxxxxx>, Albert Ou <aou@xxxxxxxxxxxxxxxxx>, Heiko Stuebner <heiko.stuebner@xxxxxxxx>, Andrew Jones <ajones@xxxxxxxxxxxxxxxx>, Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>, Conor Dooley <conor.dooley@xxxxxxxxxxxxx>, Jisheng Zhang <jszhang@xxxxxxxxxx>, Vincent Chen <vincent.chen@xxxxxxxxxx>, Guo Ren <guoren@xxxxxxxxxx>, Li Zhengyu <lizhengyu3@xxxxxxxxxx>, Masahiro Yamada <masahiroy@xxxxxxxxxx>, Changbin Du <changbin.du@xxxxxxxxx>, Richard Henderson <richard.henderson@xxxxxxxxxx>
In-reply-to: <36A0C855-5EA7-49B5-B92E-B28E684AC3D8@kernel.org>
References: <20230125142056.18356-1-andy.chiu@sifive.com> <20230125142056.18356-11-andy.chiu@sifive.com> <Y9MIr2iR5rzlIGKQ@spud> <CABgGipW_3tBbc3G91dqiAZCGeN-PbUvLS3n=bU0nWz0rRX9T8Q@mail.gmail.com> <36A0C855-5EA7-49B5-B92E-B28E684AC3D8@kernel.org>

On Mon, Feb 6, 2023 at 9:40 PM Conor Dooley <conor@xxxxxxxxxx> wrote:
> I suppose my question was "is it safe to warn and carry on, rather than disallow use of vector in this situation".
Yes, I think it is safe to warn and carry on. This is a check for
memory leak if future code did not allocate/free datap correctly.

Thanks,
Andy

References:
- [PATCH -next v13 00/19] riscv: Add vector ISA support
  - From: Andy Chiu
- [PATCH -next v13 10/19] riscv: Allocate user's vector context in the first-use trap
  - From: Andy Chiu
- Re: [PATCH -next v13 10/19] riscv: Allocate user's vector context in the first-use trap
  - From: Conor Dooley
- Re: [PATCH -next v13 10/19] riscv: Allocate user's vector context in the first-use trap
  - From: Andy Chiu
- Re: [PATCH -next v13 10/19] riscv: Allocate user's vector context in the first-use trap
  - From: Conor Dooley

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