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From: "H. Peter Anvin" <hpa@zytor.com>
To: Jens Remus <jremus@linux.ibm.com>,
	linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org,
	bpf@vger.kernel.org, x86@kernel.org, linux-mm@kvack.org,
	Steven Rostedt <rostedt@kernel.org>
Cc: Josh Poimboeuf <jpoimboe@kernel.org>,
	Masami Hiramatsu <mhiramat@kernel.org>,
	Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@kernel.org>, Jiri Olsa <jolsa@kernel.org>,
	Arnaldo Carvalho de Melo <acme@kernel.org>,
	Namhyung Kim <namhyung@kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Andrii Nakryiko <andrii@kernel.org>,
	Indu Bhagat <indu.bhagat@oracle.com>,
	"Jose E. Marchesi" <jemarch@gnu.org>,
	Beau Belgrave <beaub@linux.microsoft.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Florian Weimer <fweimer@redhat.com>, Kees Cook <kees@kernel.org>,
	"Carlos O'Donell" <codonell@redhat.com>,
	Sam James <sam@gentoo.org>, Dylan Hatch <dylanbhatch@google.com>,
	Borislav Petkov <bp@alien8.de>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	David Hildenbrand <david@redhat.com>,
	"Liam R. Howlett" <Liam.Howlett@oracle.com>,
	Lorenzo Stoakes <lorenzo.stoakes@oracle.com>,
	Michal Hocko <mhocko@suse.com>, Mike Rapoport <rppt@kernel.org>,
	Suren Baghdasaryan <surenb@google.com>,
	Vlastimil Babka <vbabka@suse.cz>,
	Heiko Carstens <hca@linux.ibm.com>,
	Vasily Gorbik <gor@linux.ibm.com>,
	"Steven Rostedt (Google)" <rostedt@goodmis.org>
Subject: Re: [PATCH v7 4/6] x86/vdso: Use SYM_FUNC_{START,END} in __kernel_vsyscall()
Date: Tue, 3 Feb 2026 16:44:28 -0800	[thread overview]
Message-ID: <63dd1427-06c3-4bb8-b57e-f36cb417c381@zytor.com> (raw)
In-Reply-To: <20260203171958.1522030-5-jremus@linux.ibm.com>

On 2026-02-03 09:19, Jens Remus wrote:
> From: Josh Poimboeuf <jpoimboe@kernel.org>
> 
> Use SYM_FUNC_{START,END} instead of all the boilerplate.  No functional
> change.
> 
> Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
> Signed-off-by: Jens Remus <jremus@linux.ibm.com>
> ---
> 
> Notes (jremus):
>     Changes in v7:
>     - Rebase on H. Peter Anvin's vDSO changes on tip:x86/entry.
> 
>  arch/x86/entry/vdso/vdso32/system_call.S | 10 ++--------
>  1 file changed, 2 insertions(+), 8 deletions(-)
> 
> diff --git a/arch/x86/entry/vdso/vdso32/system_call.S b/arch/x86/entry/vdso/vdso32/system_call.S
> index 9157cf9c5749..a90f4f7de396 100644
> --- a/arch/x86/entry/vdso/vdso32/system_call.S
> +++ b/arch/x86/entry/vdso/vdso32/system_call.S
> @@ -9,11 +9,7 @@
>  #include <asm/alternative.h>
>  
>  	.text
> -	.globl __kernel_vsyscall
> -	.type __kernel_vsyscall,@function
> -	ALIGN
> -__kernel_vsyscall:
> -	CFI_STARTPROC
> +SYM_FUNC_START(__kernel_vsyscall)
>  
>  	/*
>  	 * If using int $0x80, there is no reason to muck about with the
> @@ -85,7 +81,5 @@ SYM_INNER_LABEL(int80_landing_pad, SYM_L_GLOBAL)
>  	CFI_RESTORE		ecx
>  	CFI_ADJUST_CFA_OFFSET	-4
>  	RET
> -	CFI_ENDPROC
> -
> -	.size __kernel_vsyscall,.-__kernel_vsyscall
> +SYM_FUNC_END(__kernel_vsyscall)
>  	.previous

Looks good to me.

Acked-by: H. Peter Anvin (Intel) <hpa@zytor.com>



  reply	other threads:[~2026-02-04  0:45 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-02-03 17:19 [PATCH v7 0/6] x86/vdso: VDSO updates and fixes for sframes Jens Remus
2026-02-03 17:19 ` [PATCH v7 1/6] x86/vdso: Fix DWARF generation for getrandom() Jens Remus
2026-02-04  0:43   ` H. Peter Anvin
2026-02-03 17:19 ` [PATCH v7 2/6] x86/asm: Avoid emitting DWARF CFI for non-VDSO Jens Remus
2026-02-03 17:35   ` H. Peter Anvin
2026-02-04  0:43   ` H. Peter Anvin
2026-02-06 14:01     ` Jens Remus
2026-02-03 17:19 ` [PATCH v7 3/6] x86/asm: Simplify VDSO DWARF generation Jens Remus
2026-02-04  0:44   ` H. Peter Anvin
2026-02-03 17:19 ` [PATCH v7 4/6] x86/vdso: Use SYM_FUNC_{START,END} in __kernel_vsyscall() Jens Remus
2026-02-04  0:44   ` H. Peter Anvin [this message]
2026-02-03 17:19 ` [PATCH v7 5/6] x86/vdso: Use CFI macros in __vdso_sgx_enter_enclave() Jens Remus
2026-02-04  0:44   ` H. Peter Anvin
2026-02-06 15:04   ` Jens Remus
2026-02-03 17:19 ` [PATCH v7 6/6] x86/vdso: Enable sframe generation in VDSO Jens Remus
2026-02-04  0:49   ` H. Peter Anvin
2026-02-06 17:48     ` Jens Remus
2026-02-06 23:56       ` H. Peter Anvin
2026-02-07  0:48         ` Josh Poimboeuf
2026-02-06 15:02 ` [PATCH v7 0/6] x86/vdso: VDSO updates and fixes for sframes Jens Remus

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