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| author |   Michael S. Tsirkin <mst@redhat.com> | 2014-12-12 01:56:04 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2015-01-13 15:22:59 +0200 |
| commit | e182c570e9953859aee5cb016583217d9e68ea18 (patch) | |
| tree | 164ab952496dd7af944150f5ddc77fa9dbc4ba4d /arch/x86/include/asm/uaccess.h | |
| parent | vhost/net: length miscalculation (diff) | |
| download | linux-dev-e182c570e9953859aee5cb016583217d9e68ea18.tar.xz linux-dev-e182c570e9953859aee5cb016583217d9e68ea18.zip | |
x86/uaccess: fix sparse errors
virtio wants to read bitwise types from userspace using get_user. At the
moment this triggers sparse errors, since the value is passed through an
integer.
Fix that up using __force.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/include/asm/uaccess.h')
| -rw-r--r-- | arch/x86/include/asm/uaccess.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h index 0d592e0a5b84..ace9dec050b1 100644 --- a/arch/x86/include/asm/uaccess.h +++ b/arch/x86/include/asm/uaccess.h @@ -179,7 +179,7 @@ __typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0UL), 0ULL, 0UL)) asm volatile("call __get_user_%P3" \ : "=a" (__ret_gu), "=r" (__val_gu) \ : "0" (ptr), "i" (sizeof(*(ptr)))); \ - (x) = (__typeof__(*(ptr))) __val_gu; \ + (x) = (__force __typeof__(*(ptr))) __val_gu; \ __ret_gu; \ }) |