Hi all, After merging the akpm tree, today's linux-next build (sparc defconfig) failed like this: In file included from arch/sparc/include/asm/pgtable.h:7:0, from include/linux/pgtable.h:6, from include/linux/mm.h:33, from include/linux/ring_buffer.h:5, from include/linux/trace_events.h:6, from include/trace/syscall.h:7, from include/linux/syscalls.h:87, from fs/io_uring.c:45: arch/sparc/include/asm/pgtable_32.h: In function 'pud_pgtable': arch/sparc/include/asm/pgtable_32.h:157:10: warning: return makes pointer from integer without a cast [-Wint-conversion] return ~0; ^ and many, many more like this. This is an error due to (part of) the tree being built with -Werror Caused by commit 8aef6710db27 ("mm: rename pud_page_vaddr to pud_pgtable and make it return pmd_t *") I have applied the following hack fix for today. From: Stephen Rothwell Date: Wed, 16 Jun 2021 22:51:50 +1000 Subject: [PATCH] mm: rename pud_page_vaddr to pud_pgtable and make it return pmd_t * fix Signed-off-by: Stephen Rothwell --- arch/sparc/include/asm/pgtable_32.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/sparc/include/asm/pgtable_32.h b/arch/sparc/include/asm/pgtable_32.h index 1e6b55425f3d..ffccfe3b22ed 100644 --- a/arch/sparc/include/asm/pgtable_32.h +++ b/arch/sparc/include/asm/pgtable_32.h @@ -154,7 +154,7 @@ static inline unsigned long pmd_page_vaddr(pmd_t pmd) static inline pmd_t *pud_pgtable(pud_t pud) { if (srmmu_device_memory(pud_val(pud))) { - return ~0; + return (pmd_t *)~0; } else { unsigned long v = pud_val(pud) & SRMMU_PTD_PMASK; return (pmd_t *)__nocache_va(v << 4); -- 2.30.2 -- Cheers, Stephen Rothwell