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23 October 2021, 00:29:24 UTC
Revision a313f4c55d4952f2105fe33a4957ed858e998359 authored by Will Deacon on 08 November 2011, 04:51:19 UTC, committed by Benjamin Herrenschmidt on 17 November 2011, 05:41:10 UTC 
powerpc/signal32: Fix sigset_t conversion when copying to user
 
On PPC64, put_sigset_t converts a sigset_t to a compat_sigset_t
before copying it to userspace. There is a typo in the case that
we have 4 words to copy, meaning that we corrupt the compat_sigset_t.

It appears that _NSIG_WORDS can't be greater than 2 at the moment
so this code is probably always optimised away anyway.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
1 parent b97021f
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Tip revision: a313f4c55d4952f2105fe33a4957ed858e998359 authored by Will Deacon on 08 November 2011, 04:51:19 UTC
powerpc/signal32: Fix sigset_t conversion when copying to user
Tip revision: a313f4c
page.h 
#ifndef _XEN_PAGE_H
#define _XEN_PAGE_H

#include <asm/xen/page.h>

struct xen_memory_region {
	phys_addr_t start;
	phys_addr_t size;
};

#define XEN_EXTRA_MEM_MAX_REGIONS 128 /* == E820MAX */

extern __initdata
struct xen_memory_region xen_extra_mem[XEN_EXTRA_MEM_MAX_REGIONS];

extern unsigned long xen_released_pages;

#endif	/* _XEN_PAGE_H */
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