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Diffstat (limited to 'Documentation/dev-tools/sparse.rst')
| -rw-r--r-- | Documentation/dev-tools/sparse.rst | 16 |
1 files changed, 5 insertions, 11 deletions
diff --git a/Documentation/dev-tools/sparse.rst b/Documentation/dev-tools/sparse.rst index 8c250e8a2105..ffdcc97f6f5a 100644 --- a/Documentation/dev-tools/sparse.rst +++ b/Documentation/dev-tools/sparse.rst @@ -51,13 +51,6 @@ sure that bitwise types don't get mixed up (little-endian vs big-endian vs cpu-endian vs whatever), and there the constant "0" really _is_ special. -__bitwise__ - to be used for relatively compact stuff (gfp_t, etc.) that -is mostly warning-free and is supposed to stay that way. Warnings will -be generated without __CHECK_ENDIAN__. - -__bitwise - noisy stuff; in particular, __le*/__be* are that. We really -don't want to drown in noise unless we'd explicitly asked for it. - Using sparse for lock checking ------------------------------ @@ -109,9 +102,10 @@ be recompiled or not. The latter is a fast way to check the whole tree if you have already built it. The optional make variable CF can be used to pass arguments to sparse. The -build system passes -Wbitwise to sparse automatically. To perform endianness -checks, you may define __CHECK_ENDIAN__:: +build system passes -Wbitwise to sparse automatically. - make C=2 CF="-D__CHECK_ENDIAN__" +Checking RCU annotations +~~~~~~~~~~~~~~~~~~~~~~~~ -These checks are disabled by default as they generate a host of warnings. +RCU annotations are not checked by default. To enable RCU annotation +checks, include -DCONFIG_SPARSE_RCU_POINTER in your CF flags. |