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authorIngo Molnar <mingo@kernel.org>2021-03-19 12:10:49 +0100
committerIngo Molnar <mingo@kernel.org>2021-03-19 12:10:49 +0100
commit01438749e36bfe53ea25c91568019be775a9782e (patch)
treef91f5abae2004863afda683589d034dcd2000ab8 /include/linux/compiler-version.h
parent4faf62b1ef1a9367f7dcf8b7ce509980dfdcee83 (diff)
parentbee645788e07eea63055d261d2884ea45c2ba857 (diff)
Merge branch 'locking/urgent' into locking/core, to pick up dependent commits
We are applying further, lower-prio fixes on top of two ww_mutex fixes in locking/urgent. Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/compiler-version.h')
-rw-r--r--include/linux/compiler-version.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/compiler-version.h b/include/linux/compiler-version.h
new file mode 100644
index 000000000000..2b2972c77c62
--- /dev/null
+++ b/include/linux/compiler-version.h
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifdef __LINUX_COMPILER_VERSION_H
+#error "Please do not include <linux/compiler-version.h>. This is done by the build system."
+#endif
+#define __LINUX_COMPILER_VERSION_H
+
+/*
+ * This header exists to force full rebuild when the compiler is upgraded.
+ *
+ * When fixdep scans this, it will find this string "CONFIG_CC_VERSION_TEXT"
+ * and add dependency on include/config/cc/version/text.h, which is touched
+ * by Kconfig when the version string from the compiler changes.
+ */