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Date: Thu, 02 Aug 2012 00:27:59 -0700 (PDT) From: David Miller <davem@...emloft.net> To: jkosina@...e.cz Cc: sparclinux@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH v2] sparc64: do not clobber personality flags in sys_sparc64_personality() From: Jiri Kosina <jkosina@...e.cz> Date: Thu, 2 Aug 2012 09:12:46 +0200 (CEST) > From 4f000eda5917ceecb03767962026cc6a390b8216 Mon Sep 17 00:00:00 2001 > From: Jiri Kosina <jkosina@...e.cz> > Date: Wed, 1 Aug 2012 21:10:51 +0200 > Subject: [PATCH 4/4] sparc64: do not clobber personality flags in sys_sparc64_personality() > > There are multiple errors in how sys_sparc64_personality() handles > personality flags stored in top three bytes. > > - directly comparing current->personality against PER_LINUX32 doesn't work > in cases when any of the personality flags stored in the top three bytes > are used. > - directly forcefully setting personality to PER_LINUX32 or PER_LINUX > discards any flags stored in the top three bytes > > Fix the first one by properly using personality() macro to compare only > PER_MASK bytes. > Fix the second one by setting only the bits that should be set, instead of > overwriting the whole value. > > Signed-off-by: Jiri Kosina <jkosina@...e.cz> Applied, thanks a lot Jiri. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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