Thread (14 messages) 14 messages, 2 authors, 2021-10-22
STALE1740d LANDED: 1 (0M)
Revisions (2)
  1. v1 [diff vs current]
  2. v2 current

[PATCH v2 05/10] vmlinux.lds.h: wrap built-in firmware support under FW_LOADER

From: "Luis R. Rodriguez" <mcgrof@kernel.org>
Date: 2021-10-21 15:59:01
Also in: linux-fsdevel, lkml
Subsystem: generic include/asm header files, the rest · Maintainers: Arnd Bergmann, Linus Torvalds

From: Luis Chamberlain <mcgrof@kernel.org>

The firmware loader built-in firmware is only available when FW_LOADER
is built-in, so tuck away the sections for built-in firmware under it.

This ensures no oddball user tries to uses these sections without
first enabling FW_LOADER=y.

Reviewed-by: Borislav Petkov <redacted>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
---
 include/asm-generic/vmlinux.lds.h | 20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 8771c435f34b..62351669add4 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -476,13 +476,7 @@
 		__end_pci_fixups_suspend_late = .;			\
 	}								\
 									\
-	/* Built-in firmware blobs */					\
-	.builtin_fw : AT(ADDR(.builtin_fw) - LOAD_OFFSET) ALIGN(8) {	\
-		__start_builtin_fw = .;					\
-		KEEP(*(.builtin_fw))					\
-		__end_builtin_fw = .;					\
-	}								\
-									\
+	FW_LOADER_BUILT_IN_DATA						\
 	TRACEDATA							\
 									\
 	PRINTK_INDEX							\
@@ -886,6 +880,18 @@
 #define ORC_UNWIND_TABLE
 #endif
 
+/* Built-in firmware blobs */
+#ifdef CONFIG_FW_LOADER
+#define FW_LOADER_BUILT_IN_DATA						\
+	.builtin_fw : AT(ADDR(.builtin_fw) - LOAD_OFFSET) ALIGN(8) {	\
+		__start_builtin_fw = .;					\
+		KEEP(*(.builtin_fw))					\
+		__end_builtin_fw = .;					\
+	}
+#else
+#define FW_LOADER_BUILT_IN_DATA
+#endif
+
 #ifdef CONFIG_PM_TRACE
 #define TRACEDATA							\
 	. = ALIGN(4);							\
-- 
2.30.2
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