diff options
| author | Mike Rapoport (IBM) <[email protected]> | 2023-02-14 16:07:29 +0200 |
|---|---|---|
| committer | Andrew Morton <[email protected]> | 2023-02-16 20:43:55 -0800 |
| commit | b4fb12e6c74791ac4c5c98b845628c576366b889 (patch) | |
| tree | a5b85ae370cadd04cbf7673abd00ca1b31d77b0f | |
| parent | 9325ddf90ec3a801c09da374b74532d4589a7346 (diff) | |
sh: initialize max_mapnr
sh never initializes max_mapnr which is used by the generic implementation
of pfn_valid().
Initialize max_mapnr with set_max_mapnr() in sh::paging_init().
Link: https://lkml.kernel.org/r/[email protected]
Fixes: e5080a967785 ("mm, arch: add generic implementation of pfn_valid() for FLATMEM")
Reported-by: Guenter Roeck <[email protected]>
Signed-off-by: Mike Rapoport (IBM) <[email protected]>
Acked-by: John Paul Adrian Glaubitz <[email protected]>
Reviewed-by: David Hildenbrand <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Geert Uytterhoeven <[email protected]>
Cc: Greg Ungerer <[email protected]>
Cc: Rich Felker <[email protected]>
Cc: Yoshinori Sato <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
| -rw-r--r-- | arch/sh/mm/init.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c index 506784702430..bf1b54055316 100644 --- a/arch/sh/mm/init.c +++ b/arch/sh/mm/init.c @@ -301,6 +301,7 @@ void __init paging_init(void) */ max_low_pfn = max_pfn = memblock_end_of_DRAM() >> PAGE_SHIFT; min_low_pfn = __MEMORY_START >> PAGE_SHIFT; + set_max_mapnr(max_low_pfn - min_low_pfn); nodes_clear(node_online_map); |