linux-kernel - Re: [PATCH v8 03/12] arm64/ptrace: Refactor syscall_trace

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Message-ID: <00c60250-f642-4299-b6bd-805e7e58b9e9@arm.com>
Date: Thu, 27 Nov 2025 14:28:21 +0100
From: Kevin Brodsky <kevin.brodsky@....com>
To: Jinjie Ruan <ruanjinjie@...wei.com>, catalin.marinas@....com,
 will@...nel.org, oleg@...hat.com, tglx@...utronix.de, peterz@...radead.org,
 luto@...nel.org, shuah@...nel.org, kees@...nel.org, wad@...omium.org,
 charlie@...osinc.com, akpm@...ux-foundation.org, ldv@...ace.io,
 macro@...am.me.uk, deller@....de, mark.rutland@....com, efault@....de,
 song@...nel.org, mbenes@...e.cz, ryan.roberts@....com,
 ada.coupriediaz@....com, anshuman.khandual@....com, broonie@...nel.org,
 pengcan@...inos.cn, dvyukov@...gle.com, kmal@...k.li,
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
 linux-kselftest@...r.kernel.org
Subject: Re: [PATCH v8 03/12] arm64/ptrace: Refactor
 syscall_trace_enter/exit()

On 26/11/2025 08:14, Jinjie Ruan wrote:
> The generic syscall entry code has the following form, which use
> the input syscall work flag and syscall number:
>
> | syscall_trace_enter(struct pt_regs *regs, long syscall,
> |		      unsigned long work)
> |
> | syscall_exit_work(struct pt_regs *regs, unsigned long work)
>
> In preparation for moving arm64 over to the generic entry code,
> refactor syscall_trace_enter/exit() to also pass thread flags, and
> get syscall number by syscall_get_nr() helper.
>
> No functional changes.
>
> Signed-off-by: Jinjie Ruan <ruanjinjie@...wei.com>

Reviewed-by: Kevin Brodsky <kevin.brodsky@....com>