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s390/ap_bus: use and-mask instead of a cast

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Let's get rid of another sparse false positive:

drivers/s390/crypto/ap_bus.c:416:64: warning:
  cast truncates bits from constant value (102030405060708 becomes 5060708)

So instead of using a cast let's use an and-mask.
That way sparse remains silent and one doesn't always have to check
if this is a valid warning/bug or just a false positive.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
This commit is contained in:
Heiko Carstens 2013-09-07 11:07:22 +02:00
parent 5eb8ae503e
commit 7d6c3b492f
1 changed files with 1 additions and 1 deletions
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2
drivers/s390/crypto/ap_bus.c
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@ -413,7 +413,7 @@ __ap_send(ap_qid_t qid, unsigned long long psmid, void *msg, size_t length,
register unsigned long reg2 asm ("2") = (unsigned long) msg;
register unsigned long reg3 asm ("3") = (unsigned long) length;
register unsigned long reg4 asm ("4") = (unsigned int) (psmid >> 32);
register unsigned long reg5 asm ("5") = (unsigned int) psmid;
register unsigned long reg5 asm ("5") = psmid & 0xffffffff;
if (special == 1)
reg0 |= 0x400000UL;