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Subject[PATCH v4 2/5] ACPI / ARM64: remove usage of BAD_MADT_ENTRY/BAD_MADT_GICC_ENTRY
Date
Now that we have introduced the bad_madt_entry() function, and that
function is being invoked in acpi_table_parse_madt() for us, there
is no longer any need to use the BAD_MADT_ENTRY macro, or in the case
of arm64, the BAD_MADT_GICC_ENTRY, too.

Signed-off-by: Al Stone <al.stone@linaro.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-and-tested-by: Sudeep Holla <sudeep.holla@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
---
arch/arm64/include/asm/acpi.h | 8 --------
arch/arm64/kernel/smp.c | 2 --
drivers/irqchip/irq-gic.c | 6 ------
3 files changed, 16 deletions(-)

diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h
index 208cec0..ed7e212 100644
--- a/arch/arm64/include/asm/acpi.h
+++ b/arch/arm64/include/asm/acpi.h
@@ -19,14 +19,6 @@
#include <asm/cputype.h>
#include <asm/smp_plat.h>

-/* Macros for consistency checks of the GICC subtable of MADT */
-#define ACPI_MADT_GICC_LENGTH \
- (acpi_gbl_FADT.header.revision < 6 ? 76 : 80)
-
-#define BAD_MADT_GICC_ENTRY(entry, end) \
- (!(entry) || (unsigned long)(entry) + sizeof(*(entry)) > (end) || \
- (entry)->header.length != ACPI_MADT_GICC_LENGTH)
-
/* Basic configuration for ACPI */
#ifdef CONFIG_ACPI
/* ACPI table mapping after acpi_gbl_permanent_mmap is set */
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index dbdaacd..66cc8c4 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -451,8 +451,6 @@ 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_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 e6b7ed5..b3530e3 100644
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -1189,9 +1189,6 @@ gic_acpi_parse_madt_cpu(struct acpi_subtable_header *header,

processor = (struct acpi_madt_generic_interrupt *)header;

- if (BAD_MADT_GICC_ENTRY(processor, end))
- return -EINVAL;
-
/*
* There is no support for non-banked GICv1/2 register in ACPI spec.
* All CPU interface addresses have to be the same.
@@ -1213,9 +1210,6 @@ gic_acpi_parse_madt_distributor(struct acpi_subtable_header *header,

dist = (struct acpi_madt_generic_distributor *)header;

- if (BAD_MADT_ENTRY(dist, end))
- return -EINVAL;
-
dist_phy_base = dist->base_address;
return 0;
}
--
2.4.3


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