Re: [PATCH 5.10 12/25] radix tree test suite: Fix compilation

On Thu, Apr 15, 2021 at 04:48:06PM +0200, Greg Kroah-Hartman wrote:

From: Matthew Wilcox (Oracle) willy@infradead.org

[ 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.