linux-kernel - Re: [PATCH] ARM: stacktrace: include asm/sections.h in asm/stacktrace.h

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Message-Id: <175612794578.1492825.5832281034488912097.b4-ty@kernel.org>
Date: Mon, 25 Aug 2025 06:19:08 -0700
From: Kees Cook <kees@...nel.org>
To: Russell King <linux@...linux.org.uk>,
	Li Huafei <lihuafei1@...wei.com>,
	"Russell King (Oracle)" <rmk+kernel@...linux.org.uk>,
	Linus Waleij <linus.walleij@...aro.org>,
	Arnd Bergmann <arnd@...nel.org>
Cc: Kees Cook <kees@...nel.org>,
	Arnd Bergmann <arnd@...db.de>,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ARM: stacktrace: include asm/sections.h in asm/stacktrace.h

On Thu, 07 Aug 2025 09:18:58 +0200, Arnd Bergmann wrote:
> The recent kstack erase changes appear to have uncovered an existing
> issue with a missing header inclusion:
> 
> In file included from drivers/misc/lkdtm/kstack_erase.c:12:
> In file included from include/linux/kstack_erase.h:16:
> arch/arm/include/asm/stacktrace.h:48:21: error: call to undeclared function 'in_entry_text'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
>    48 |                 frame->ex_frame = in_entry_text(frame->pc);
>       |                                   ^
> 
> [...]

Applied to for-linus/hardening, thanks!

[1/1] ARM: stacktrace: include asm/sections.h in asm/stacktrace.h
      https://git.kernel.org/kees/c/f05995cc6d3b

Take care,

-- 
Kees Cook