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dea632cadd
Use just @ to denote comments which works with gcc and clang.
Otherwise clang reports an escape sequence error:
error: invalid % escape in inline assembly string
Use %0-%3 as operand references, this avoids:
error: invalid operand in inline asm: 'umull ${1:r}, ${0:r}, ${2:r}, ${3:r}'
Also remove superfluous casts on output operands to avoid warnings
such as:
warning: invalid use of a cast in an inline asm context requiring an l-value
Signed-off-by: Stefan Agner <stefan@agner.ch>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>