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Wysocki" Subject: [RFC V3 1/3] ACPI: add support for sentinel-delimited probe tables Date: Fri, 22 Jun 2018 15:49:06 -0400 Message-Id: <1529696948-16991-1-git-send-email-agustinv@codeaurora.org> X-Mailer: git-send-email 1.9.1 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180622_124928_544274_C68577B1 X-CRM114-Status: GOOD ( 12.20 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: timur@codeaurora.org, agustinv@codeaurora.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP 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 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