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authorBjorn Helgaas2022-03-23 16:05:32 -0700
committerLinus Torvalds2022-03-23 19:00:33 -0700
commit179fd6ba3bacbf7b19cbdf9b14be109d54318394 (patch)
treeb996ecbbe3a68711d3a4ee8afe129828dcc65e58 /include/uapi
parentc724c866bb70cb8c607081a26823a1f0ebde4387 (diff)
Documentation/sparse: add hints about __CHECKER__
Several attributes depend on __CHECKER__, but previously there was no clue in the tree about when __CHECKER__ might be defined. Add hints at the most common places (__kernel, __user, __iomem, __bitwise) and in the sparse documentation. Link: https://lkml.kernel.org/r/20220310220927.245704-3-helgaas@kernel.org Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: "Michael S . Tsirkin" <mst@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/uapi')
-rw-r--r--include/uapi/linux/types.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/types.h b/include/uapi/linux/types.h
index 71696f424ac8..c4dc597f3dcf 100644
--- a/include/uapi/linux/types.h
+++ b/include/uapi/linux/types.h
@@ -19,6 +19,7 @@
* any application/library that wants linux/types.h.
*/
+/* sparse defines __CHECKER__; see Documentation/dev-tools/sparse.rst */
#ifdef __CHECKER__
#define __bitwise __attribute__((bitwise))
#else