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authorThomas Gleixner <tglx@linutronix.de>2021-09-11 00:38:47 +0200
committerThomas Gleixner <tglx@linutronix.de>2021-09-11 00:38:47 +0200
commitc2f4954c2d3fc4f77b46c67585e17a58df4ba8e4 (patch)
tree533a2077028e02a851e51ad509a0aa3a9107999f /include/linux/typecheck.h
parentdrivers: base: cacheinfo: Get rid of DEFINE_SMP_CALL_CACHE_FUNCTION() (diff)
parentMerge tag 'acpi-5.15-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm (diff)
Merge branch 'linus' into smp/urgent
Ensure that all usage sites of get/put_online_cpus() except for the struggler in drivers/thermal are gone. So the last user and the deprecated inlines can be removed.
Diffstat (limited to 'include/linux/typecheck.h')
-rw-r--r--include/linux/typecheck.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/typecheck.h b/include/linux/typecheck.h
index 20d310331eb5..46b15e2aaefb 100644
--- a/include/linux/typecheck.h
+++ b/include/linux/typecheck.h
@@ -22,4 +22,13 @@
(void)__tmp; \
})
+/*
+ * Check at compile time that something is a pointer type.
+ */
+#define typecheck_pointer(x) \
+({ typeof(x) __dummy; \
+ (void)sizeof(*__dummy); \
+ 1; \
+})
+
#endif /* TYPECHECK_H_INCLUDED */