linux-kernel - Re: [PATCH v5 4/4] entry: Inline syscall_exit_to_user

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Message-ID: <87senn3dh1.ffs@tglx>
Date: Sat, 08 Mar 2025 13:37:30 +0100
From: Thomas Gleixner <tglx@...utronix.de>
To: Charlie Jenkins <charlie@...osinc.com>, Paul Walmsley
 <paul.walmsley@...ive.com>, Palmer Dabbelt <palmer@...belt.com>, Huacai
 Chen <chenhuacai@...nel.org>, WANG Xuerui <kernel@...0n.name>, Peter
 Zijlstra <peterz@...radead.org>, Andy Lutomirski <luto@...nel.org>,
 Alexandre Ghiti <alexghiti@...osinc.com>
Cc: linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
 loongarch@...ts.linux.dev, Charlie Jenkins <charlie@...osinc.com>
Subject: Re: [PATCH v5 4/4] entry: Inline syscall_exit_to_user_mode()

On Wed, Mar 05 2025 at 16:43, Charlie Jenkins wrote:
> Architectures using the generic entry code can be optimized by having
> syscall_exit_to_user_mode inlined.

That's a pretty handwavy claim. What's the actual benefit in numbers?

Thanks,

        tglx