tree f865b4884accc9163247c8db4169b1c9e6791a91
parent 347b0cf022a8da1b4517acc7ea310a27ca2cf7ef
author Sam Ravnborg <sam@ravnborg.org> 1400275547 +0200
committer David S. Miller <davem@davemloft.net> 1400464888 -0700

sparc64: remove cast from output constraints in math asm statements

The following asm statements generated a sparse warning:

        asm("addcc \n\t" : "=r" (((USItype)(r2)))

warning: asm output is not an lvalue

When asking on the sparse mailing list Linus replyed:

"
Those casts to (USItype) are all pointless to begin with (since the
values are of that type already!) and they mean that the expression
isn't something you can assign to (lvalue).
"

In the math emulation code drop all casts in the output
parts of the asm statements.

This fixes a lot of "warning: asm output is not an lvalue" sparse
warnings in math_64.c.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>