[PATCH 3/3] ACPI / ARM64: use the new BAD_MADT_GICC_ENTRY macro

From: al . stone
Date: Thu Jun 11 2015 - 15:45:51 EST


From: Al Stone <al.stone@xxxxxxxxxx>

For those parts of the arm64 ACPI code that need to check GICC subtables
in the MADT, use the new BAD_MADT_GICC_ENTRY macro instead of the previous
BAD_MADT_ENTRY. The new macro takes into account differences in the size
of the GICC subtable that the old macro did not; this caused failures even
though the subtable entries are valid.

Signed-off-by: Al Stone <al.stone@xxxxxxxxxx>
Reviewed-by: Hanjun Guo <hanjun.guo@xxxxxxxxxx>
Reviewed-by: Graeme Gregory <graeme.gregory@xxxxxxxxxx>

CC: Catalin Marinas <catalin.marinas@xxxxxxx>
CC: Will Deacon <will.deacon@xxxxxxx>
CC: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CC: Jason Cooper <jason@xxxxxxxxxxxxxx>

---
arch/arm64/kernel/smp.c | 2 +-
drivers/irqchip/irq-gic.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 4b2121b..80d5984 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -438,7 +438,7 @@ acpi_parse_gic_cpu_interface(struct acpi_subtable_header *header,
struct acpi_madt_generic_interrupt *processor;

processor = (struct acpi_madt_generic_interrupt *)header;
- if (BAD_MADT_ENTRY(processor, end))
+ if (BAD_MADT_GICC_ENTRY(processor, end))
return -EINVAL;

acpi_table_print_madt_entry(header);
diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
index 8d7e1c8..4dd8826 100644
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -1055,7 +1055,7 @@ gic_acpi_parse_madt_cpu(struct acpi_subtable_header *header,

processor = (struct acpi_madt_generic_interrupt *)header;

- if (BAD_MADT_ENTRY(processor, end))
+ if (BAD_MADT_GICC_ENTRY(processor, end))
return -EINVAL;

/*
--
2.1.0

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