netdev - Re: [PATCH] net: thunderx: add 64-bit dependency

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 linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-Id: <20150530.233906.1834698625091975461.davem@davemloft.net>
Date:	Sat, 30 May 2015 23:39:06 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	arnd@...db.de
Cc:	netdev@...r.kernel.org, sgoutham@...ium.com, mjc@...ihalf.com,
	david.daney@...ium.com, ganapatrao.kulkarni@...iumnetworks.com,
	aleksey.makarov@...iumnetworks.com, tomasz.nowicki@...aro.org,
	rrichter@...ium.com, kamil@...ihalf.com,
	tsrinivasulu@...iumnetworks.com, svangala@...ium.com
Subject: Re: [PATCH] net: thunderx: add 64-bit dependency

From: Arnd Bergmann <arnd@...db.de>
Date: Thu, 28 May 2015 16:00:46 +0200

> The thunderx ethernet driver fails to build on architectures
> that do not have an atomic readq() and writeq() function for
> 64-bit PCI bus access:
> 
> drivers/net/ethernet/cavium/thunder/thunder_bgx.c: In function 'bgx_reg_read':
> include/asm-generic/io.h:195:23: error: implicit declaration of function 'readq' [-Werror=implicit-function-declaration]
> 
> It seems impossible to get this driver to work on most 32-bit
> hardware, so it's better to add an explicit dependency, in
> order to let us keep building 'allmodconfig' kernels on
> all architectures.
> 
> As the driver is meant for the internal hardware on an arm64 SoC, this
> is not a problem for usability. Allowing the build on all 64-bit
> architectures rather than just CONFIG_ARM64 on the other hand means that
> we get the benefit of build testing on x86.
> 
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Applied, thanks Arnd.
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html