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From: Karl Mehltretter <kmehltretter@gmail.com>
To: Jinjie Ruan <ruanjinjie@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v18 02/14] arm64: ptrace: Rework audit_syscall_entry()
Date: Sat, 19 Sep 2026 18:43:19 +0200	[thread overview]
Message-ID: <20260919164319.90193-1-kmehltretter@gmail.com> (raw)
In-Reply-To: <20260902095537.602517-3-ruanjinjie@huawei.com>

> +	if (unlikely(audit_context()))
> +		syscall_enter_audit(regs);

With arm64 defconfig and CONFIG_AUDIT=n on v7.3-rc1, building
arch/arm64/kernel/ptrace.o after this patch fails with GCC 15.2.0:

arch/arm64/kernel/ptrace.c: In function ‘syscall_trace_enter’:
arch/arm64/kernel/ptrace.c:2491:17: error: implicit declaration of function ‘syscall_enter_audit’ [-Wimplicit-function-declaration]
 2491 |                 syscall_enter_audit(regs);
      |                 ^~~~~~~~~~~~~~~~~~~

The helper is defined only under CONFIG_AUDITSYSCALL, but this call
remains when auditing is disabled. The audit_context() check does not
avoid the missing declaration.

Could the helper get an audit-disabled stub, or could this call be
guarded as well?

The same object builds after patches 1 and 13. Patch 12 still fails
with the missing declaration. Patch 13 removes the affected code, but
the intermediate commits should remain buildable.

Thanks,
Karl

  reply	other threads:[~2026-09-19 16:43 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-02  9:55 [PATCH v18 00/14] arm64: entry: Convert to Generic Entry Jinjie Ruan
2026-09-02  9:55 ` [PATCH v18 01/14] arm64: ptrace: Fix redundant syscall exit stop for PTRACE_SYSEMU_SINGLESTEP Jinjie Ruan
2026-09-02  9:55 ` [PATCH v18 02/14] arm64: ptrace: Rework audit_syscall_entry() Jinjie Ruan
2026-09-19 16:43   ` Karl Mehltretter [this message]
2026-09-20  1:24     ` Jinjie Ruan
2026-09-02  9:55 ` [PATCH v18 03/14] arm64: ptrace: Open-code seccomp check in syscall_trace_enter() Jinjie Ruan
2026-09-02  9:55 ` [PATCH v18 04/14] arm64: ptrace: Rename and clean up syscall_trace_enter() Jinjie Ruan
2026-09-02  9:55 ` [PATCH v18 05/14] arm64: ptrace: Protect rseq_syscall() from tracer PC modifications Jinjie Ruan
2026-09-02  9:55 ` [PATCH v18 06/14] arm64: syscall: Rework the syscall exit path in el0_svc_common() Jinjie Ruan
2026-09-02  9:55 ` [PATCH v18 07/14] arm64: ptrace: Pass thread flags to trace enter/exit Jinjie Ruan
2026-09-02  9:55 ` [PATCH v18 08/14] arm64: ptrace: Extract arm64_syscall_exit_to_user_mode_work() helper Jinjie Ruan
2026-09-02  9:55 ` [PATCH v18 09/14] arm64: ptrace: Align syscall exit work semantics with generic entry Jinjie Ruan
2026-09-02  9:55 ` [PATCH v18 10/14] arm64: syscall: Use exit-specific flags check in el0_svc_common() Jinjie Ruan
2026-09-02  9:55 ` [PATCH v18 11/14] arm64: syscall: Simplify el0_svc_common() syscall exit path Jinjie Ruan
2026-09-02  9:55 ` [PATCH v18 12/14] arm64: ptrace: Make return type of arm64_syscall_trace_enter() bool Jinjie Ruan
2026-09-02  9:55 ` [PATCH v18 13/14] arm64: entry: Convert to generic entry Jinjie Ruan
2026-09-02  9:55 ` [PATCH v18 14/14] arm64: Inline el0_svc_common() Jinjie Ruan
2026-09-15 13:03 ` [PATCH v18 00/14] arm64: entry: Convert to Generic Entry Jinjie Ruan

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