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From: Catalin Marinas <catalin.marinas@arm.com>
To: Arnd Bergmann <arnd@kernel.org>
Cc: Will Deacon <will@kernel.org>,
	Nathan Chancellor <nathan@kernel.org>,
	Nick Desaulniers <ndesaulniers@google.com>,
	Arnd Bergmann <arnd@arndb.de>, Kees Cook <keescook@chromium.org>,
	Mark Brown <broonie@kernel.org>,
	Vincenzo Frascino <vincenzo.frascino@arm.com>,
	Geert Uytterhoeven <geert+renesas@glider.be>,
	Kristina Martsenko <kristina.martsenko@arm.com>,
	Ionela Voinescu <ionela.voinescu@arm.com>,
	Mark Rutland <mark.rutland@arm.com>,
	Andrew Scull <ascull@google.com>,
	David Brazdil <dbrazdil@google.com>,
	Marc Zyngier <maz@kernel.org>, Ard Biesheuvel <ardb@kernel.org>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com
Subject: Re: [PATCH] [RFC] arm64: enable HAVE_LD_DEAD_CODE_DATA_ELIMINATION
Date: Wed, 17 Mar 2021 14:37:57 +0000	[thread overview]
Message-ID: <20210317143757.GD12269@arm.com> (raw)
In-Reply-To: <20210225112122.2198845-1-arnd@kernel.org>

On Thu, Feb 25, 2021 at 12:20:56PM +0100, Arnd Bergmann wrote:
> diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S
> index bad2b9eaab22..926cdb597a45 100644
> --- a/arch/arm64/kernel/vmlinux.lds.S
> +++ b/arch/arm64/kernel/vmlinux.lds.S
> @@ -217,7 +217,7 @@ SECTIONS
>  		INIT_CALLS
>  		CON_INITCALL
>  		INIT_RAM_FS
> -		*(.init.altinstructions .init.bss .init.bss.*)	/* from the EFI stub */
> +		*(.init.altinstructions .init.data.* .init.bss .init.bss.*)	/* from the EFI stub */

INIT_DATA already covers .init.data and .init.data.*, so I don't think
we need this change.

Also, mainline doesn't have .init.bss.*, do you know where this came
from? I can't find it in -next either.

-- 
Catalin

WARNING: multiple messages have this Message-ID (diff)
From: Catalin Marinas <catalin.marinas@arm.com>
To: Arnd Bergmann <arnd@kernel.org>
Cc: Will Deacon <will@kernel.org>,
	Nathan Chancellor <nathan@kernel.org>,
	Nick Desaulniers <ndesaulniers@google.com>,
	Arnd Bergmann <arnd@arndb.de>, Kees Cook <keescook@chromium.org>,
	Mark Brown <broonie@kernel.org>,
	Vincenzo Frascino <vincenzo.frascino@arm.com>,
	Geert Uytterhoeven <geert+renesas@glider.be>,
	Kristina Martsenko <kristina.martsenko@arm.com>,
	Ionela Voinescu <ionela.voinescu@arm.com>,
	Mark Rutland <mark.rutland@arm.com>,
	Andrew Scull <ascull@google.com>,
	David Brazdil <dbrazdil@google.com>,
	Marc Zyngier <maz@kernel.org>, Ard Biesheuvel <ardb@kernel.org>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com
Subject: Re: [PATCH] [RFC] arm64: enable HAVE_LD_DEAD_CODE_DATA_ELIMINATION
Date: Wed, 17 Mar 2021 14:37:57 +0000	[thread overview]
Message-ID: <20210317143757.GD12269@arm.com> (raw)
In-Reply-To: <20210225112122.2198845-1-arnd@kernel.org>

On Thu, Feb 25, 2021 at 12:20:56PM +0100, Arnd Bergmann wrote:
> diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S
> index bad2b9eaab22..926cdb597a45 100644
> --- a/arch/arm64/kernel/vmlinux.lds.S
> +++ b/arch/arm64/kernel/vmlinux.lds.S
> @@ -217,7 +217,7 @@ SECTIONS
>  		INIT_CALLS
>  		CON_INITCALL
>  		INIT_RAM_FS
> -		*(.init.altinstructions .init.bss .init.bss.*)	/* from the EFI stub */
> +		*(.init.altinstructions .init.data.* .init.bss .init.bss.*)	/* from the EFI stub */

INIT_DATA already covers .init.data and .init.data.*, so I don't think
we need this change.

Also, mainline doesn't have .init.bss.*, do you know where this came
from? I can't find it in -next either.

-- 
Catalin

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  parent reply	other threads:[~2021-03-17 14:38 UTC|newest]

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-25 11:20 [PATCH] [RFC] arm64: enable HAVE_LD_DEAD_CODE_DATA_ELIMINATION Arnd Bergmann
2021-02-25 11:20 ` Arnd Bergmann
2021-02-25 20:16 ` Kees Cook
2021-02-25 20:16   ` Kees Cook
2021-02-26  0:36 ` Sedat Dilek
2021-02-26  0:36   ` Sedat Dilek
2021-02-26  8:14   ` Arnd Bergmann
2021-02-26  8:14     ` Arnd Bergmann
2021-02-26  9:05     ` Sedat Dilek
2021-02-26  9:05       ` Sedat Dilek
2021-02-26  9:51       ` Arnd Bergmann
2021-02-26  9:51         ` Arnd Bergmann
2021-02-26 10:02         ` Sedat Dilek
2021-02-26 10:02           ` Sedat Dilek
2021-02-27 20:13           ` Sedat Dilek
2021-02-26 21:13 ` Fangrui Song
2021-02-26 21:13   ` Fangrui Song
2021-02-27  9:49   ` Arnd Bergmann
2021-02-27  9:49     ` Arnd Bergmann
2021-03-01  1:11     ` Nicholas Piggin
2021-03-01  1:11       ` Nicholas Piggin
2021-03-10 20:49       ` Masahiro Yamada
2021-03-10 20:49         ` Masahiro Yamada
2021-03-10 21:08         ` Arnd Bergmann
2021-03-10 21:08           ` Arnd Bergmann
2021-03-10 21:24           ` Sedat Dilek
2021-03-10 21:24             ` Sedat Dilek
2021-03-10 21:47             ` Nicolas Pitre
2021-03-10 21:47               ` Nicolas Pitre
2021-03-10 21:57               ` Sedat Dilek
2021-03-10 21:57                 ` Sedat Dilek
2021-03-10 22:02           ` Nick Desaulniers
2021-03-10 22:02             ` Nick Desaulniers
2021-03-10 22:08             ` Nicolas Pitre
2021-03-10 22:08               ` Nicolas Pitre
2021-03-10 22:29           ` Fangrui Song
2021-03-10 22:29             ` Fangrui Song
2021-03-10 21:45         ` Rasmus Villemoes
2021-03-10 21:45           ` Rasmus Villemoes
2021-03-10 21:19       ` Nicolas Pitre
2021-03-10 21:19         ` Nicolas Pitre
2021-03-10 22:42         ` Fangrui Song
2021-03-10 22:42           ` Fangrui Song
2021-03-17 14:37 ` Catalin Marinas [this message]
2021-03-17 14:37   ` Catalin Marinas
2021-03-17 16:18   ` Catalin Marinas
2021-03-17 16:18     ` Catalin Marinas
2021-03-18  8:41     ` Arnd Bergmann
2021-03-18  8:41       ` Arnd Bergmann
2021-03-19 12:25       ` Catalin Marinas
2021-03-19 12:25         ` Catalin Marinas
2021-03-19 14:01         ` Arnd Bergmann
2021-03-19 14:01           ` Arnd Bergmann

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