powerpc/mm: Fix spurrious segfaults on radix with autonuma

When autonuma (Automatic NUMA balancing) marks a PTE inaccessible it
clears all the protection bits but leave the PTE valid.

With the Radix MMU, an attempt at executing from such a PTE will
take a fault with bit 35 of SRR1 set "SRR1_ISI_N_OR_G".

It is thus incorrect to treat all such faults as errors. We should
pass them to handle_mm_fault() for autonuma to deal with. The case
of pages that are really not executable is handled by the existing
test for VM_EXEC further down.

That leaves us with catching the kernel attempts at executing user
pages. We can catch that earlier, even before we do find_vma.

It is never valid on powerpc for the kernel to take an exec fault
to begin with. So fold that test with the existing test for the
kernel faulting on kernel addresses to bail out early.

Fixes: 1d18ad026844 ("powerpc/mm: Detect instruction fetch denied and report")
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Acked-by: Balbir Singh <bsingharora@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

path: root/sound/soc/samsung/s3c2412-i2s.h

/* sound/soc/samsung/s3c2412-i2s.c
 *
 * ALSA Soc Audio Layer - S3C2412 I2S driver
 *
 * Copyright (c) 2007 Simtec Electronics
 *	http://armlinux.simtec.co.uk/
 *	Ben Dooks <ben@simtec.co.uk>
 *
 *  This program is free software; you can redistribute  it and/or modify it
 *  under  the terms of  the GNU General  Public License as published by the
 *  Free Software Foundation;  either version 2 of the  License, or (at your
 *  option) any later version.
*/

#ifndef __SND_SOC_S3C24XX_S3C2412_I2S_H
#define __SND_SOC_S3C24XX_S3C2412_I2S_H __FILE__

#include "s3c-i2s-v2.h"

#define S3C2412_DIV_BCLK	S3C_I2SV2_DIV_BCLK
#define S3C2412_DIV_RCLK	S3C_I2SV2_DIV_RCLK
#define S3C2412_DIV_PRESCALER	S3C_I2SV2_DIV_PRESCALER

#define S3C2412_CLKSRC_PCLK	S3C_I2SV2_CLKSRC_PCLK
#define S3C2412_CLKSRC_I2SCLK	S3C_I2SV2_CLKSRC_AUDIOBUS

#endif /* __SND_SOC_S3C24XX_S3C2412_I2S_H */