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irqchip/mips-gic: Use bitfield helpers
Use the FIELD_GET() helper, instead of open-coding the same operation. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/all/74f9d126961a90d3e311b92a54870eaac5b3ae57.1637593297.git.geert+renesas@glider.be
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@ -9,6 +9,7 @@
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#define pr_fmt(fmt) "irq-mips-gic: " fmt
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#include <linux/bitfield.h>
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#include <linux/bitmap.h>
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#include <linux/clocksource.h>
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#include <linux/cpuhotplug.h>
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@ -735,8 +736,7 @@ static int __init gic_of_init(struct device_node *node,
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mips_gic_base = ioremap(gic_base, gic_len);
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gicconfig = read_gic_config();
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gic_shared_intrs = gicconfig & GIC_CONFIG_NUMINTERRUPTS;
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gic_shared_intrs >>= __ffs(GIC_CONFIG_NUMINTERRUPTS);
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gic_shared_intrs = FIELD_GET(GIC_CONFIG_NUMINTERRUPTS, gicconfig);
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gic_shared_intrs = (gic_shared_intrs + 1) * 8;
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if (cpu_has_veic) {
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