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authorIngo Molnar <mingo@kernel.org>2022-09-21 09:58:02 +0200
committerIngo Molnar <mingo@kernel.org>2022-09-21 09:58:02 +0200
commit74656d03ac36fabb16b9df5221cf398ee3a9ca08 (patch)
tree0600e619ac817e2c016c148810814f55280316cc /include/linux/compiler.h
parent0d97db026509c1a13f732b22670ab1f0ac9d8d87 (diff)
parent521a547ced6477c54b4b0cc206000406c221b4d6 (diff)
Merge tag 'v6.0-rc6' into locking/core, to refresh the branch
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/compiler.h')
-rw-r--r--include/linux/compiler.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index 01ce94b58b42..7713d7bcdaea 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -240,6 +240,12 @@ static inline void *offset_to_ptr(const int *off)
#define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0]))
/*
+ * Whether 'type' is a signed type or an unsigned type. Supports scalar types,
+ * bool and also pointer types.
+ */
+#define is_signed_type(type) (((type)(-1)) < (__force type)1)
+
+/*
* This is needed in functions which generate the stack canary, see
* arch/x86/kernel/smpboot.c::start_secondary() for an example.
*/