lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Mon, 9 Aug 2021 16:24:21 +0100 From: "Russell King (Oracle)" <linux@...linux.org.uk> To: David Heidelberg <david@...t.cz> Cc: Arnd Bergmann <arnd@...db.de>, Jon Medhurst <tixy@...aro.org>, Ard Biesheuvel <ard.biesheuvel@...aro.org>, Marc Zyngier <marc.zyngier@....com>, Nicolas Pitre <nico@...aro.org>, linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org Subject: Re: [PATCH] ARM: atags_to_fdt: don't warn about stack size On Mon, Aug 09, 2021 at 05:10:21PM +0200, David Heidelberg wrote: > The merge_fdt_bootargs() function by definition consumes more than 1024 > bytes of stack because it has a 1024 byte command line on the stack, > meaning that we always get a warning when building this file: > > arch/arm/boot/compressed/atags_to_fdt.c: In function 'merge_fdt_bootargs': > arch/arm/boot/compressed/atags_to_fdt.c:98:1: warning: the frame size of 1032 bytes is larger than 1024 bytes [-Wframe-larger-than=] > > However, as this is the decompressor and we know that it has a very shallow > call chain, and we do not actually risk overflowing the kernel stack > at runtime here. > > This just shuts up the warning by disabling the warning flag for this > file. > > Tested on Nexus 7 2012 builds. > > Original Author: Arnd Bergmann <arnd@...db.de> > Reference: https://lore.kernel.org/lkml/8232115.18ykgQ6J5T@wuerfel/ > > Cc: Arnd Bergmann <arnd@...db.de> > Cc: Nicolas Pitre <nico@...aro.org> > Cc: Russell King <linux@....linux.org.uk> > Cc: Ard Biesheuvel <ard.biesheuvel@...aro.org> > Cc: Marc Zyngier <marc.zyngier@....com> > Cc: linux-kernel@...r.kernel.org > Cc: linux-arm-kernel@...ts.infradead.org > > Signed-off-by: David Heidelberg <david@...t.cz> I assume Arnd never sent his v3 from what I see in the thread you link to above. This needs to go to the patch system to be applied. Details in my signature below. Thanks. -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!
Powered by blists - more mailing lists