From: Roland McGrath Date: Fri, 26 Jan 2007 01:19:51 +0000 (-0800) Subject: [PATCH] x86_64: fix put_user for 64-bit constant X-Git-Tag: v2.6.20-rc7~103 X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=5ad0d383ddbf0d2fce43b8aac267a6c299fd2dff;p=linux-2.6-omap-h63xx.git [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 Signed-off-by: Linus Torvalds --- diff --git a/include/asm-x86_64/uaccess.h b/include/asm-x86_64/uaccess.h index d5dbc87274f..c0eac519840 100644 --- a/include/asm-x86_64/uaccess.h +++ b/include/asm-x86_64/uaccess.h @@ -157,7 +157,7 @@ do { \ case 1: __put_user_asm(x,ptr,retval,"b","b","iq",-EFAULT); break;\ case 2: __put_user_asm(x,ptr,retval,"w","w","ir",-EFAULT); break;\ case 4: __put_user_asm(x,ptr,retval,"l","k","ir",-EFAULT); break;\ - case 8: __put_user_asm(x,ptr,retval,"q","","ir",-EFAULT); break;\ + case 8: __put_user_asm(x,ptr,retval,"q","","Zr",-EFAULT); break;\ default: __put_user_bad(); \ } \ } while (0)