Messages in this thread Patch in this message | | | Date | Tue, 15 Sep 2015 08:49:13 -0700 | From | tip-bot for Pavel Fedin <> | Subject | [tip:irq/urgent] irqchip/GICv2m: Fix GICv2m build warning on 32 bits |
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Commit-ID: 157add60cb35913b8a848a3d7e6456b8ed134796 Gitweb: http://git.kernel.org/tip/157add60cb35913b8a848a3d7e6456b8ed134796 Author: Pavel Fedin <p.fedin@samsung.com> AuthorDate: Sun, 13 Sep 2015 12:14:33 +0100 Committer: Thomas Gleixner <tglx@linutronix.de> CommitDate: Tue, 15 Sep 2015 17:06:29 +0200
irqchip/GICv2m: Fix GICv2m build warning on 32 bits
After GICv2m was enabled for 32-bit ARM kernel, a warning popped up:
drivers/irqchip/irq-gic-v2m.c: In function gicv2m_compose_msi_msg: drivers/irqchip/irq-gic-v2m.c:100:2: warning: right shift count >= width of type [enabled by default] msg->address_hi = (u32) (addr >> 32); ^
This patch fixes it by using proper macros for splitting up the value.
Signed-off-by: Pavel Fedin <p.fedin@samsung.com> Reviewed-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Cc: linux-arm-kernel@lists.infradead.org Cc: Stuart Yoder <stuart.yoder@freescale.com> Cc: Jason Cooper <jason@lakedaemon.net> Link: http://lkml.kernel.org/r/1442142873-20213-4-git-send-email-marc.zyngier@arm.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de> --- drivers/irqchip/irq-gic-v2m.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/irqchip/irq-gic-v2m.c b/drivers/irqchip/irq-gic-v2m.c index db04fc1..12985da 100644 --- a/drivers/irqchip/irq-gic-v2m.c +++ b/drivers/irqchip/irq-gic-v2m.c @@ -95,8 +95,8 @@ static void gicv2m_compose_msi_msg(struct irq_data *data, struct msi_msg *msg) struct v2m_data *v2m = irq_data_get_irq_chip_data(data); phys_addr_t addr = v2m->res.start + V2M_MSI_SETSPI_NS; - msg->address_hi = (u32) (addr >> 32); - msg->address_lo = (u32) (addr); + msg->address_hi = upper_32_bits(addr); + msg->address_lo = lower_32_bits(addr); msg->data = data->hwirq; }
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