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Message-ID: <1410420623-11691-7-git-send-email-paul.burton@imgtec.com> Date: Thu, 11 Sep 2014 08:30:19 +0100 From: Paul Burton <paul.burton@...tec.com> To: <linux-mips@...ux-mips.org> CC: Alexander Viro <viro@...iv.linux.org.uk>, <linux-fsdevel@...r.kernel.org>, <linux-kernel@...r.kernel.org>, Paul Burton <paul.burton@...tec.com> Subject: [PATCH 06/10] MIPS: ensure Config5.UFE is clear on boot As is done for UFR, ensure that userland cannot directly manipulate the mode by clearing the UFE bit during boot. Signed-off-by: Paul Burton <paul.burton@...tec.com> --- arch/mips/kernel/cpu-probe.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index db929a0..4e2a6e0 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -400,7 +400,7 @@ static inline unsigned int decode_config5(struct cpuinfo_mips *c) unsigned int config5; config5 = read_c0_config5(); - config5 &= ~MIPS_CONF5_UFR; + config5 &= ~(MIPS_CONF5_UFR | MIPS_CONF5_UFE); write_c0_config5(config5); if (config5 & MIPS_CONF5_EVA) -- 2.0.4 -- 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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