linux-kernel - Re: [PATCH v2 2/2] ARM: avoid that vectors are removed during linker garbage collection

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Message-ID: <CACRpkdYZmC7yg7fcYEyVhxioDObRX-RR35skGBxxFxzHHOnt=A@mail.gmail.com>
Date: Fri, 28 Feb 2025 00:22:58 +0100
From: Linus Walleij <linus.walleij@...aro.org>
To: Christian Eggers <ceggers@...i.de>
Cc: Russell King <linux@...linux.org.uk>, Yuntao Liu <liuyuntao12@...wei.com>, 
	"Russell King (Oracle)" <rmk+kernel@...linux.org.uk>, Arnd Bergmann <arnd@...db.de>, 
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Catalin Marinas <catalin.marinas@....com>, 
	Nathan Chancellor <nathan@...nel.org>, linux-arm-kernel@...ts.infradead.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/2] ARM: avoid that vectors are removed during linker
 garbage collection

On Mon, Feb 24, 2025 at 1:54 PM Christian Eggers <ceggers@...i.de> wrote:

> Without this, the vectors are removed if LD_DEAD_CODE_DATA_ELIMINATION
> is enabled.  At startup, the CPU (silently) hangs in the undefined
> instruction exception as soon as the first timer interrupt arrives.
>
> Fixes: ed0f94102251 ("ARM: 9404/1: arm32: enable HAVE_LD_DEAD_CODE_DATA_ELIMINATION")
> Signed-off-by: Christian Eggers <ceggers@...i.de>

Reviewed-by: Linus Walleij <linus.walleij@...aro.org>

Yours,
Linus Walleij