2 Commits

Author	SHA1	Message	Date
Mel Gorman	496d2d2388	mm: security: Check early if HARDENED_USERCOPY is enabled ... HARDENED_USERCOPY is checked within a function so even if disabled, the function overhead still exists. Move the static check inline. This is at best a micro-optimisation and any difference in performance was within noise but it is relatively consistent with the init_on_* implementations. Suggested-by: Kees Cook <kees@kernel.org> Signed-off-by: Mel Gorman <mgorman@techsingularity.net> Link: https://lore.kernel.org/r/20250123221115.19722-4-mgorman@techsingularity.net Signed-off-by: Kees Cook <kees@kernel.org>	2025-02-28 11:51:31 -08:00
Kees Cook	808aac63e2	uaccess: Introduce ucopysize.h ... The object size sanity checking macros that uaccess.h and uio.h use have been living in thread_info.h for historical reasons. Needing to use jump labels for these checks, however, introduces a header include loop under certain conditions. The dependencies for the object checking macros are very limited, but they are used by separate header files, so introduce a new header that can be used directly by uaccess.h and uio.h. As a result, this also means thread_info.h (which is rather large) and be removed from those headers. Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202502281153.TG2XK5SI-lkp@intel.com/ Signed-off-by: Kees Cook <kees@kernel.org>	2025-02-28 11:51:26 -08:00