Re: [3.13-rc regression] Unbreak Loongson2 and r4k-generic flush icache range

From: Alexandre Oliva
Date: Tue Jan 14 2014 - 05:01:53 EST


On Jan 13, 2014, Sergei Shtylyov <sergei.shtylyov@xxxxxxxxxxxxxxxxxx> wrote:

> Hello.

>> Commit 14bd8c08, that replaced Loongson2-specific ifdefs with cpu tests,
>> inverted the CPU test in local_r4k_flush_icache_range. Loongson2 won't
>> boot up using the generic icache flush code. Presumably other CPUs
>> might face other problems when presented with Loongson2-specific icache
>> flush code too. This patch enabled my Yeeloong to boot up successfully
>> a 3.13-rc kernel for the first time, after a long git bisect session.

>> Signed-off-by: Alexandre Oliva <lxoliva@xxxxxxxxx>

> Fix for this issue has been posted long ago:

> http://marc.info/?l=linux-mips&m=138575576803890

Thanks. As long ago as that was, I still don't see it in Torvalds's
master branch. Was a pull request including this patch ever send his
way? Such a trivial fix for such a show-stopper shouldn't find any
difficulties making 3.13, I think.

--
Alexandre Oliva, freedom fighter http://FSFLA.org/~lxoliva/
You must be the change you wish to see in the world. -- Gandhi
Be Free! -- http://FSFLA.org/ FSF Latin America board member
Free Software Evangelist Red Hat Brazil Compiler Engineer
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