Commit-ID: 96555c474b917963da7065f88cdab376c8af0e87
Gitweb: http://git.kernel.org/tip/96555c474b917963da7065f88cdab376c8af0e87
Author: Will Deacon <will.deacon@xxxxxxx>
AuthorDate: Wed, 17 Dec 2014 14:11:09 +0000
Committer: Jason Cooper <jason@xxxxxxxxxxxxxx>
CommitDate: Wed, 7 Jan 2015 02:34:43 +0000
irqchip: gic-v3-its: Fix use of max with decimal constant
arm64 defconfig spits out the following compiler warning from the ITS
driver:
In file included from include/linux/bitmap.h:9:0,
from drivers/irqchip/irq-gic-v3-its.c:18:
drivers/irqchip/irq-gic-v3-its.c: In function ‘its_create_device’:
include/linux/kernel.h:716:17: warning: comparison of distinct pointer types lacks a cast
(void) (&_max1 == &_max2); \
^
drivers/irqchip/irq-gic-v3-its.c:1056:12: note: in expansion of macro ‘max’
nr_ites = max(2, roundup_pow_of_two(nvecs));
Fix the warning by specifying the decimal constant `2' explicitly as an
unsigned long type.
Cc: Marc Zyngier <marc.zyngier@xxxxxxx>
Signed-off-by: Will Deacon <will.deacon@xxxxxxx>
Acked-by: Marc Zyngier <marc.zyngier@xxxxxxx>
Link: https://lkml.kernel.org/r/1418825469-30529-1-git-send-email-will.deacon@xxxxxxx
Signed-off-by: Jason Cooper <jason@xxxxxxxxxxxxxx>
---
drivers/irqchip/irq-gic-v3-its.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index 86e4684..d8996bd 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -1053,7 +1053,7 @@ static struct its_device *its_create_device(struct its_node *its, u32 dev_id,
* of two entries. No, the architecture doesn't let you
* express an ITT with a single entry.
*/
- nr_ites = max(2, roundup_pow_of_two(nvecs));
+ nr_ites = max(2UL, roundup_pow_of_two(nvecs));
sz = nr_ites * its->ite_size;
sz = max(sz, ITS_ITT_ALIGN) + ITS_ITT_ALIGN - 1;
itt = kmalloc(sz, GFP_KERNEL);
--
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