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Date: Sun, 13 Sep 2015 12:14:33 +0100 From: Marc Zyngier <marc.zyngier@....com> To: Thomas Gleixner <tglx@...utronix.de>, Jason Cooper <jason@...edaemon.net> Cc: Pavel Fedin <p.fedin@...sung.com>, Marc Zyngier <marc.zyngier@....com>, linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, Stuart Yoder <stuart.yoder@...escale.com> Subject: [PATCH 3/3] irqchip/GICv2m: Fix GICv2m build warning on 32 bits From: Pavel Fedin <p.fedin@...sung.com> 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. Reviewed-by: Marc Zyngier <marc.zyngier@....com> Signed-off-by: Pavel Fedin <p.fedin@...sung.com> Signed-off-by: Marc Zyngier <marc.zyngier@....com> --- 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; } -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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