Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751309AbbHGJEa (ORCPT ); Fri, 7 Aug 2015 05:04:30 -0400 Received: from foss.arm.com ([217.140.101.70]:41861 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750848AbbHGJE0 (ORCPT ); Fri, 7 Aug 2015 05:04:26 -0400 Message-ID: <55C47496.5070902@arm.com> Date: Fri, 07 Aug 2015 10:04:22 +0100 From: Marc Zyngier Organization: ARM Ltd User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Icedove/31.7.0 MIME-Version: 1.0 To: Al Stone , linux-acpi@vger.kernel.org, linux-arm-kernel@lists.infradead.org CC: linaro-kernel@lists.linaro.org, linux-ia64@vger.kernel.org, Jason Cooper , patches@linaro.org, Catalin Marinas , linux-pm@vger.kernel.org, linaro-acpi@lists.linaro.org, Will Deacon , linux-kernel@vger.kernel.org, Thomas Gleixner Subject: Re: [PATCH 2/5] ACPI / ARM64: remove usage of BAD_MADT_ENTRY/BAD_MADT_GICC_ENTRY References: <1438894770-31163-1-git-send-email-al.stone@linaro.org> <1438894770-31163-3-git-send-email-al.stone@linaro.org> In-Reply-To: <1438894770-31163-3-git-send-email-al.stone@linaro.org> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3190 Lines: 91 Hi Al, On 06/08/15 21:59, Al Stone wrote: > 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 > Cc: Catalin Marinas > Cc: Will Deacon > Cc: Thomas Gleixner > Cc: Jason Cooper > Cc: Marc Zyngier > --- > 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 406485e..39248d3 100644 > --- a/arch/arm64/include/asm/acpi.h > +++ b/arch/arm64/include/asm/acpi.h > @@ -19,14 +19,6 @@ > #include > #include > > -/* 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 50fb469..acd3b27 100644 > --- a/arch/arm64/kernel/smp.c > +++ b/arch/arm64/kernel/smp.c > @@ -438,8 +438,6 @@ 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 4dd8826..2735611 100644 > --- a/drivers/irqchip/irq-gic.c > +++ b/drivers/irqchip/irq-gic.c > @@ -1055,9 +1055,6 @@ 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. > @@ -1079,9 +1076,6 @@ 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; > } > Thanks a lot for doing this - the proliferation of this macro has been driving me insane. Acked-by: Marc Zyngier M. -- Jazz is not dead. It just smells funny... -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/