From mboxrd@z Thu Jan 1 00:00:00 1970 From: agustinv@codeaurora.org (Agustin Vega-Frias) Date: Thu, 5 Jul 2018 16:23:18 -0400 Subject: [RFC V4 1/4] ACPI: add support for sentinel-delimited probe tables In-Reply-To: <1530822201-5890-1-git-send-email-agustinv@codeaurora.org> References: <1530822201-5890-1-git-send-email-agustinv@codeaurora.org> Message-ID: <1530822201-5890-2-git-send-email-agustinv@codeaurora.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.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 --- 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 e373e2e..1ec0411 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -228,7 +228,8 @@ . = ALIGN(8); \ __##name##_acpi_probe_table = .; \ KEEP(*(__##name##_acpi_probe_table)) \ - __##name##_acpi_probe_table_end = .; + __##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.