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x86, xsave: use BUG_ON() instead of BUILD_BUG_ON()
author
Suresh Siddha
<suresh.b.siddha@intel.com>
Wed, 13 Aug 2008 18:38:15 +0000
(11:38 -0700)
committer
Ingo Molnar
<mingo@elte.hu>
Thu, 14 Aug 2008 08:56:07 +0000
(10:56 +0200)
All these structure sizes are runtime determined. So use a runtime
bug check.
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
arch/x86/kernel/xsave.c
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diff --git
a/arch/x86/kernel/xsave.c
b/arch/x86/kernel/xsave.c
index bb097b1644d832025a6bc453ad158fdd45d8daa0..07713d64debe2fffa7cb49e3bcd5bb129572f6a0 100644
(file)
--- a/
arch/x86/kernel/xsave.c
+++ b/
arch/x86/kernel/xsave.c
@@
-82,8
+82,7
@@
int save_i387_xstate(void __user *buf)
if (!access_ok(VERIFY_WRITE, buf, sig_xstate_size))
return -EACCES;
- BUILD_BUG_ON(sizeof(struct user_i387_struct) !=
- sizeof(tsk->thread.xstate->fxsave));
+ BUG_ON(sig_xstate_size < xstate_size);
if ((unsigned long)buf % 64)
printk("save_i387_xstate: bad fpstate %p\n", buf);