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authorJan Glauber <jang@linux.vnet.ibm.com>2011-06-22 16:24:10 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2011-06-22 16:24:20 +0200
commit859c965149ab5004b58b1fffd98190b6664cb717 (patch)
treef3bc462e44fad76d17bbc4c8d6960ede86d6d1f4 /arch
parent6815823431296082fa20c2f14007e194424660b8 (diff)
downloadop-kernel-dev-859c965149ab5004b58b1fffd98190b6664cb717.zip
op-kernel-dev-859c965149ab5004b58b1fffd98190b6664cb717.tar.gz
[S390] allow setting of upper 32 bit in smp_ctl_set_bit
The bit shift operation in smp_ctl_set_bit does not specify the type of the shifted bit so integer is used as default. Therefore it is not possible to set bits in the upper 32 bit of the control register if the kernel runs in 64 bit mode. Fix this by specifying the type as unsigned long. Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/s390/kernel/smp.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 52420d2..1d55c95 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -262,7 +262,7 @@ void smp_ctl_set_bit(int cr, int bit)
memset(&parms.orvals, 0, sizeof(parms.orvals));
memset(&parms.andvals, 0xff, sizeof(parms.andvals));
- parms.orvals[cr] = 1 << bit;
+ parms.orvals[cr] = 1UL << bit;
on_each_cpu(smp_ctl_bit_callback, &parms, 1);
}
EXPORT_SYMBOL(smp_ctl_set_bit);
@@ -276,7 +276,7 @@ void smp_ctl_clear_bit(int cr, int bit)
memset(&parms.orvals, 0, sizeof(parms.orvals));
memset(&parms.andvals, 0xff, sizeof(parms.andvals));
- parms.andvals[cr] = ~(1L << bit);
+ parms.andvals[cr] = ~(1UL << bit);
on_each_cpu(smp_ctl_bit_callback, &parms, 1);
}
EXPORT_SYMBOL(smp_ctl_clear_bit);
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