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Commit 1d638efc authored by Michael S. Tsirkin's avatar Michael S. Tsirkin
Browse files

sparc64/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: default avatarMichael S. Tsirkin <mst@redhat.com>
Acked-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 9b7accb2

arch/sparc/include/asm/uaccess_64.h

+2 −2
Original line number Diff line number Diff line
@@ -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__(							\