diff options
authorMike Rapoport <>2020-05-22 22:23:09 -0700
committerLinus Torvalds <>2020-05-23 10:26:32 -0700
commitc2bc26f7ca1ff1165bb6669a7a4cccc20ffd2ced (patch)
parentf7fa1876af81512444631d324adb77383f56c37a (diff)
sparc32: use PUD rather than PGD to get PMD in srmmu_nocache_init()
The kbuild test robot reported the following warning: arch/sparc/mm/srmmu.c: In function 'srmmu_nocache_init': arch/sparc/mm/srmmu.c:300:9: error: variable 'pud' set but not used [-Werror=unused-but-set-variable] 300 | pud_t *pud; This warning is caused by misprint in the page table traversal in srmmu_nocache_init() function which accessed a PMD entry using PGD rather than PUD. Since sparc32 has only 3 page table levels, the PGD and PUD are essentially the same and usage of __nocache_fix() removed the type checking. Use PUD for the consistency and to silence the compiler warning. Fixes: 7235db268a2777bc38 ("sparc32: use pgtable-nopud instead of 4level-fixup") Reported-by: kbuild test robot <> Signed-off-by: Mike Rapoport <> Signed-off-by: Andrew Morton <> Cc: David S. Miller <> Cc: Anatoly Pugachev <> Cc: <> Link: Signed-off-by: Linus Torvalds <>
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c
index b7c94de70cca..e9f7af32da07 100644
--- a/arch/sparc/mm/srmmu.c
+++ b/arch/sparc/mm/srmmu.c
@@ -333,7 +333,7 @@ static void __init srmmu_nocache_init(void)
pgd = pgd_offset_k(vaddr);
p4d = p4d_offset(__nocache_fix(pgd), vaddr);
pud = pud_offset(__nocache_fix(p4d), vaddr);
- pmd = pmd_offset(__nocache_fix(pgd), vaddr);
+ pmd = pmd_offset(__nocache_fix(pud), vaddr);
pte = pte_offset_kernel(__nocache_fix(pmd), vaddr);
pteval = ((paddr >> 4) | SRMMU_ET_PTE | SRMMU_PRIV);