[PATCH AUTOSEL 4.14 11/30] powerpc/nohash: fix undefined behaviour when testing page size support

2018-11-04 Thread Sasha Levin
From: Daniel Axtens [ Upstream commit f5e284803a7206d43e26f9ffcae5de9626d95e37 ] When enumerating page size definitions to check hardware support, we construct a constant which is (1U << (def->shift - 10)). However, the array of page size definitions is only initalised for various MMU_PAGE_*

[PATCH AUTOSEL 4.14 11/30] powerpc/nohash: fix undefined behaviour when testing page size support

2018-11-04 Thread Sasha Levin
From: Daniel Axtens [ Upstream commit f5e284803a7206d43e26f9ffcae5de9626d95e37 ] When enumerating page size definitions to check hardware support, we construct a constant which is (1U << (def->shift - 10)). However, the array of page size definitions is only initalised for various MMU_PAGE_*