Commit a80554fc authored Feb 08, 2019 by Julien Thierry Committed by Catalin Marinas Feb 12, 2019

arm64: irqflags: Fix clang build warnings



Clang complains when passing asm operands that are smaller than the
registers they are mapped to:

arch/arm64/include/asm/irqflags.h:50:10: warning: value size does not
	match register size specified by the constraint and modifier
	[-Wasm-operand-widths]
                : "r" (GIC_PRIO_IRQON)

Fix it by casting the affected input operands to a type of the correct
size.

Reported-by: Nathan Chancellor <natechancellor@gmail.com>
Tested-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Julien Thierry <julien.thierry@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

parent bc3c03cc

arch/arm64/include/asm/irqflags.h

+3 −3

Original line number	Diff line number	Diff line
		@@ -47,7 +47,7 @@ static inline void arch_local_irq_enable(void)
		"dsb sy",
		ARM64_HAS_IRQ_PRIO_MASKING)
		:
		: "r" (GIC_PRIO_IRQON)
		: "r" ((unsigned long) GIC_PRIO_IRQON)
		: "memory");
		}

		@@ -58,7 +58,7 @@ static inline void arch_local_irq_disable(void)
		"msr_s " __stringify(SYS_ICC_PMR_EL1) ", %0",
		ARM64_HAS_IRQ_PRIO_MASKING)
		:
		: "r" (GIC_PRIO_IRQOFF)
		: "r" ((unsigned long) GIC_PRIO_IRQOFF)
		: "memory");
		}

		@@ -91,7 +91,7 @@ static inline unsigned long arch_local_save_flags(void)
		"csel %0, %0, %2, eq",
		ARM64_HAS_IRQ_PRIO_MASKING)
		: "=&r" (flags), "+r" (daif_bits)
		: "r" (GIC_PRIO_IRQOFF)
		: "r" ((unsigned long) GIC_PRIO_IRQOFF)
		: "memory");

		return flags;

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