On Thu, Apr 15, 2021 at 04:48:06PM +0200, Greg Kroah-Hartman wrote: > From: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx> > > [ Upstream commit 7487de534dcbe143e6f41da751dd3ffcf93b00ee ] > > Commit 4bba4c4bb09a added tools/include/linux/compiler_types.h which > includes linux/compiler-gcc.h. Unfortunately, we had our own (empty) > compiler_types.h which overrode the one added by that commit, and > so we lost the definition of __must_be_array(). Removing our empty > compiler_types.h fixes the problem and reduces our divergence from the > rest of the tools. I don't see 4bba4c4bb09a backported to 5.10.y, so I think this will break compilation of the radix tree test suite. The corresponding commit for 5.11.y is good, since 5.11.y includes 4bba4c4bb09a.
