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sparc64/uaccess: fix sparse errors

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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: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael S. Tsirkin 2014-12-12 01:56:04 +02:00
parent 9b7accb286
commit 1d638efce8
1 changed files with 2 additions and 2 deletions
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4
arch/sparc/include/asm/uaccess_64.h
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@ -145,7 +145,7 @@ case 2: __get_user_asm(__gu_val,uh,addr,__gu_ret); break; \
case 4: __get_user_asm(__gu_val,uw,addr,__gu_ret); break; \
case 8: __get_user_asm(__gu_val,x,addr,__gu_ret); break; \
default: __gu_val = 0; __gu_ret = __get_user_bad(); break; \
} data = (type) __gu_val; __gu_ret; })
} data = (__force type) __gu_val; __gu_ret; })
#define __get_user_nocheck_ret(data,addr,size,type,retval) ({ \
register unsigned long __gu_val __asm__ ("l1"); \
@ -155,7 +155,7 @@ case 2: __get_user_asm_ret(__gu_val,uh,addr,retval); break; \
case 4: __get_user_asm_ret(__gu_val,uw,addr,retval); break; \
case 8: __get_user_asm_ret(__gu_val,x,addr,retval); break; \
default: if (__get_user_bad()) return retval; \
} data = (type) __gu_val; })
} data = (__force type) __gu_val; })
#define __get_user_asm(x,size,addr,ret) \
__asm__ __volatile__( \