[S390] cio: remove stsch

Since 8821d24cd261aede9b0436cd3252b17a60ccc33a we no longer
use the plain stsch inline function but the one which can
handle exceptions. Remove the unused function.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

authored by Sebastian Ott and committed by Martin Schwidefsky a65a3e82 2ffbb3f6

-15
-15
drivers/s390/cio/ioasm.h
··· 23 23 * Some S390 specific IO instructions as inline 24 24 */ 25 25 26 - static inline int stsch(struct subchannel_id schid, struct schib *addr) 27 - { 28 - register struct subchannel_id reg1 asm ("1") = schid; 29 - int ccode; 30 - 31 - asm volatile( 32 - " stsch 0(%3)\n" 33 - " ipm %0\n" 34 - " srl %0,28" 35 - : "=d" (ccode), "=m" (*addr) 36 - : "d" (reg1), "a" (addr) 37 - : "cc"); 38 - return ccode; 39 - } 40 - 41 26 static inline int stsch_err(struct subchannel_id schid, struct schib *addr) 42 27 { 43 28 register struct subchannel_id reg1 asm ("1") = schid;