From: Agustin Vega-Frias <agustinv@codeaurora.org>
To: linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, linux-acpi@vger.kernel.org,
Will Deacon <will.deacon@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
Jeremy Linton <jeremy.linton@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Marc Zyngier <marc.zyngier@arm.com>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
"Rafael J. Wysocki" <rafael@kernel.org>
Cc: timur@codeaurora.org, agustinv@codeaurora.org
Subject: [RFC V2 1/3] ACPI: add support for sentinel-delimited probe tables
Date: Fri, 22 Jun 2018 15:46:30 -0400 [thread overview]
Message-ID: <1529696792-16903-2-git-send-email-agustinv@codeaurora.org> (raw)
In-Reply-To: <1529696792-16903-1-git-send-email-agustinv@codeaurora.org>
Tables declared with the ACPI_PROBE_TABLE linker macro are typically
traversed by using the start and end symbols created by the linker
script. However, there are some APIs that use sentinel-delimited
tables (e.g. acpi_match_device). To better support these APIs an
additional section is added at the end of the probe table. This
section can be used to add a sentinel for tables that require it.
Signed-off-by: Agustin Vega-Frias <agustinv@codeaurora.org>
---
include/asm-generic/vmlinux.lds.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index af24057..5894049 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -219,7 +219,8 @@
. = ALIGN(8); \
VMLINUX_SYMBOL(__##name##_acpi_probe_table) = .; \
KEEP(*(__##name##_acpi_probe_table)) \
- VMLINUX_SYMBOL(__##name##_acpi_probe_table_end) = .;
+ VMLINUX_SYMBOL(__##name##_acpi_probe_table_end) = .; \
+ KEEP(*(__##name##_acpi_probe_table_end))
#else
#define ACPI_PROBE_TABLE(name)
#endif
--
Qualcomm Datacenter Technologies, Inc. on behalf of the Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.
next prev parent reply other threads:[~2018-06-22 19:46 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-22 19:46 [RFC V3 0/3] arm_pmu: acpi: variant support and QCOM Falkor extensions Agustin Vega-Frias
2018-06-22 19:46 ` Agustin Vega-Frias [this message]
2018-06-22 19:46 ` [RFC V2 2/3] arm_pmu: acpi: add support for CPU PMU variant detection Agustin Vega-Frias
2018-06-22 19:46 ` [RFC V2 3/3] perf: qcom: Add Falkor CPU PMU IMPLEMENTATION DEFINED event support Agustin Vega-Frias
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