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| author | Geert Uytterhoeven <geert+renesas@glider.be> | 2021-11-22 16:54:07 +0100 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2021-11-25 17:55:40 +0100 |
| commit | 357a9c4b79f4c8bbceb77c64ea09d8da3a6a870d (patch) | |
| tree | 734a86589b2f63649045df6720f872f49164f756 | |
| parent | irqchip/aspeed-scu: Replace update_bits with write_bits. (diff) | |
| download | linux-357a9c4b79f4c8bbceb77c64ea09d8da3a6a870d.tar.xz linux-357a9c4b79f4c8bbceb77c64ea09d8da3a6a870d.zip | |
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
| -rw-r--r-- | drivers/irqchip/irq-mips-gic.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/irqchip/irq-mips-gic.c b/drivers/irqchip/irq-mips-gic.c index d02b05a067d9..ff89b36267dd 100644 --- a/drivers/irqchip/irq-mips-gic.c +++ b/drivers/irqchip/irq-mips-gic.c @@ -9,6 +9,7 @@ #define pr_fmt(fmt) "irq-mips-gic: " fmt +#include <linux/bitfield.h> #include <linux/bitmap.h> #include <linux/clocksource.h> #include <linux/cpuhotplug.h> @@ -735,8 +736,7 @@ static int __init gic_of_init(struct device_node *node, mips_gic_base = ioremap(gic_base, gic_len); gicconfig = read_gic_config(); - gic_shared_intrs = gicconfig & GIC_CONFIG_NUMINTERRUPTS; - gic_shared_intrs >>= __ffs(GIC_CONFIG_NUMINTERRUPTS); + gic_shared_intrs = FIELD_GET(GIC_CONFIG_NUMINTERRUPTS, gicconfig); gic_shared_intrs = (gic_shared_intrs + 1) * 8; if (cpu_has_veic) { |