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From: Nathan Chancellor <nathan@kernel.org>
To: "Thomas Weißschuh" <thomas.weissschuh@linutronix.de>
Cc: Paul Walmsley <pjw@kernel.org>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Alexandre Ghiti <alex@ghiti.fr>,
	Conor Dooley <conor.dooley@microchip.com>,
	Wende Tan <twd2.me@gmail.com>,
	Palmer Dabbelt <palmer@rivosinc.com>,
	linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org,
	Nam Cao <namcao@linutronix.de>, kernel test robot <lkp@intel.com>,
	stable@vger.kernel.org
Subject: Re: [PATCH 0/2] riscv: vdso: Do not use LTO for the vDSO
Date: Tue, 7 Jul 2026 10:45:13 -0700	[thread overview]
Message-ID: <20260707174513.GA1256227@ax162> (raw)
In-Reply-To: <20260701-riscv-vdso-lto-v1-0-89db0cd82077@linutronix.de>

On Wed, Jul 01, 2026 at 11:21:21AM +0200, Thomas Weißschuh wrote:
> With LTO enabled the compiler assumes that the vDSO functions are not
> used and optimizes them away completely.
> 
> Disable LTO for the vDSO, as these functions are hand-optimized anyways.
> 
> Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
> ---
> Thomas Weißschuh (2):
>       riscv: vdso: Do not use LTO for the vDSO
>       riscv: vdso: Simplify cflags remove logic

Reviewed-by: Nathan Chancellor <nathan@kernel.org>

-- 
Cheers,
Nathan

WARNING: multiple messages have this Message-ID (diff)
From: Nathan Chancellor <nathan@kernel.org>
To: "Thomas Weißschuh" <thomas.weissschuh@linutronix.de>
Cc: Paul Walmsley <pjw@kernel.org>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Alexandre Ghiti <alex@ghiti.fr>,
	Conor Dooley <conor.dooley@microchip.com>,
	Wende Tan <twd2.me@gmail.com>,
	Palmer Dabbelt <palmer@rivosinc.com>,
	linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org,
	Nam Cao <namcao@linutronix.de>, kernel test robot <lkp@intel.com>,
	stable@vger.kernel.org
Subject: Re: [PATCH 0/2] riscv: vdso: Do not use LTO for the vDSO
Date: Tue, 7 Jul 2026 10:45:13 -0700	[thread overview]
Message-ID: <20260707174513.GA1256227@ax162> (raw)
In-Reply-To: <20260701-riscv-vdso-lto-v1-0-89db0cd82077@linutronix.de>

On Wed, Jul 01, 2026 at 11:21:21AM +0200, Thomas Weißschuh wrote:
> With LTO enabled the compiler assumes that the vDSO functions are not
> used and optimizes them away completely.
> 
> Disable LTO for the vDSO, as these functions are hand-optimized anyways.
> 
> Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
> ---
> Thomas Weißschuh (2):
>       riscv: vdso: Do not use LTO for the vDSO
>       riscv: vdso: Simplify cflags remove logic

Reviewed-by: Nathan Chancellor <nathan@kernel.org>

-- 
Cheers,
Nathan

_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv

  parent reply	other threads:[~2026-07-07 17:45 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-01  9:21 [PATCH 0/2] riscv: vdso: Do not use LTO for the vDSO Thomas Weißschuh
2026-07-01  9:21 ` Thomas Weißschuh
2026-07-01  9:21 ` [PATCH 1/2] " Thomas Weißschuh
2026-07-01  9:21   ` Thomas Weißschuh
2026-07-06 21:01   ` Nathan Chancellor
2026-07-06 21:01     ` Nathan Chancellor
2026-07-07  6:10     ` Thomas Weißschuh
2026-07-07  6:10       ` Thomas Weißschuh
2026-07-07 17:44       ` Nathan Chancellor
2026-07-07 17:44         ` Nathan Chancellor
2026-07-13 18:14   ` Paul Walmsley
2026-07-13 18:14     ` Paul Walmsley
2026-07-01  9:21 ` [PATCH 2/2] riscv: vdso: Simplify cflags remove logic Thomas Weißschuh
2026-07-01  9:21   ` Thomas Weißschuh
2026-07-13 18:15   ` Paul Walmsley
2026-07-13 18:15     ` Paul Walmsley
2026-07-02  9:38 ` [PATCH 0/2] riscv: vdso: Do not use LTO for the vDSO Nam Cao
2026-07-02  9:38   ` Nam Cao
2026-07-07 17:45 ` Nathan Chancellor [this message]
2026-07-07 17:45   ` Nathan Chancellor

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