Re: [PATCH v2] xtensa/mm/highmem: Make generic kmap_atomic() work correctly

2020-11-16 Thread Thomas Gleixner
On Mon, Nov 16 2020 at 11:32, Max Filippov wrote: > From: Thomas Gleixner > > The conversion to the generic kmap_atomic() implementation missed the fact > that xtensa's fixmap works bottom up while all other implementations work > top down. There is no real reason why xtensa needs to work that

[PATCH v2] xtensa/mm/highmem: Make generic kmap_atomic() work correctly

2020-11-16 Thread Max Filippov
From: Thomas Gleixner The conversion to the generic kmap_atomic() implementation missed the fact that xtensa's fixmap works bottom up while all other implementations work top down. There is no real reason why xtensa needs to work that way. Cure it by: - Using the generic