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| author | James Morris <jmorris@namei.org> | 2011-11-16 12:39:48 +1100 |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2011-11-16 12:39:48 +1100 |
| commit | 24942c8e5cc8696064ee207ff29d4cf21f70dafc (patch) | |
| tree | 08a8221eb72ec3da7746d7d76f6f5915ce77cde7 /arch/x86/um/bug.c | |
| parent | e163bc8e4a0cd1cdffadb58253f7651201722d56 (diff) | |
| parent | ff0ff78068dd8a962358dbbdafa9d6f24540d3e5 (diff) | |
| download | linux-stable-24942c8e5cc8696064ee207ff29d4cf21f70dafc.tar.gz linux-stable-24942c8e5cc8696064ee207ff29d4cf21f70dafc.tar.bz2 linux-stable-24942c8e5cc8696064ee207ff29d4cf21f70dafc.zip | |
Merge branch 'master'; commit 'v3.2-rc2' into next
Diffstat (limited to 'arch/x86/um/bug.c')
| -rw-r--r-- | arch/x86/um/bug.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/x86/um/bug.c b/arch/x86/um/bug.c new file mode 100644 index 000000000000..e8034e363d83 --- /dev/null +++ b/arch/x86/um/bug.c @@ -0,0 +1,21 @@ +/* + * Copyright (C) 2006 Jeff Dike (jdike@addtoit.com) + * Licensed under the GPL V2 + */ + +#include <linux/uaccess.h> + +/* + * Mostly copied from i386/x86_86 - eliminated the eip < PAGE_OFFSET because + * that's not relevant in skas mode. + */ + +int is_valid_bugaddr(unsigned long eip) +{ + unsigned short ud2; + + if (probe_kernel_address((unsigned short __user *)eip, ud2)) + return 0; + + return ud2 == 0x0b0f; +} |