netdev - Re: [PATCH 1/3] ssb: add missing method ssb_gige_get

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

Date:	Sun, 13 Jan 2013 23:31:58 +0100
From:	Hauke Mehrtens <hauke@...ke-m.de>
To:	Michael Büsch <m@...s.ch>
CC:	David Miller <davem@...emloft.net>, mcarlson@...adcom.com,
	mchan@...adcom.com, netdev@...r.kernel.org
Subject: Re: [PATCH 1/3] ssb: add missing method ssb_gige_get_macaddr

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On 01/13/2013 10:47 AM, Michael Büsch wrote:
> On Sat, 12 Jan 2013 15:32:11 -0800 (PST) David Miller
> <davem@...emloft.net> wrote:
> 
>> From: Hauke Mehrtens <hauke@...ke-m.de> Date: Sat, 12 Jan 2013
>> 21:01:43 +0100
>> 
>>> When CONFIG_SSB_DRIVER_GIGE is not set the header does not
>>> provide the needed method.
>>> 
>>> Signed-off-by: Hauke Mehrtens <hauke@...ke-m.de>
>> 
>> This isn't right.
>> 
>> You can't implement this function in a way that the caller
>> cannot determine that it didn't actually do anything.
>> 
>> You either have to protect calls with ifdefs or make this
>> routine return an error indication, in response to which the
>> caller can set a random ethernet address or take some other
>> corrective action.
> 
> tg3 uses is_valid_ether_addr() afterwards anyway. An error code
> return value could be added, but it didn't seem necessary.

David, I could change that function to return an error code in this
case, but this stub should never get called, because a caller should
check if this device is a ssb gige core with pdev_is_ssb_gige_core()
before and this always returns false if CONFIG_SSB_DRIVER_GIGE is not set.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)
Comment: Using GnuPG with undefined - http://www.enigmail.net/
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=1JMZ
-----END PGP SIGNATURE-----
--
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