[PATCH] x86_64: fix put_user for 64-bit constant
On x86-64, a put_user call using a 64-bit pointer and a constant value that is > 0xffffffff will produce code that doesn't assemble. This patch fixes the asm construct to use the Z constraint for 32-bit constants. Signed-off-by: Roland McGrath <roland@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -157,7 +157,7 @@ do { \
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case 1: __put_user_asm(x,ptr,retval,"b","b","iq",-EFAULT); break;\
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case 2: __put_user_asm(x,ptr,retval,"w","w","ir",-EFAULT); break;\
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case 4: __put_user_asm(x,ptr,retval,"l","k","ir",-EFAULT); break;\
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case 8: __put_user_asm(x,ptr,retval,"q","","ir",-EFAULT); break;\
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case 8: __put_user_asm(x,ptr,retval,"q","","Zr",-EFAULT); break;\
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default: __put_user_bad(); \
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} \
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} while (0)
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