From a56b072fa357ab076cb6c9b52e58fbe3c709da10 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Thu, 13 Feb 2014 16:15:01 -0500 Subject: sparc32: make copy_to/from_user_page() usable from modular code While copy_to/from_user_page() users are uncommon, there is one in drivers/staging/lustre/lustre/libcfs/linux/linux-curproc.c which leads to the following: ERROR: "sparc32_cachetlb_ops" [drivers/staging/lustre/lustre/libcfs/libcfs.ko] undefined! during routine allmodconfig build coverage. The reason this happens is as follows: In arch/sparc/include/asm/cacheflush_32.h we have: #define flush_cache_page(vma,addr,pfn) \ sparc32_cachetlb_ops->cache_page(vma, addr) #define copy_to_user_page(vma, page, vaddr, dst, src, len) \ do { \ flush_cache_page(vma, vaddr, page_to_pfn(page));\ memcpy(dst, src, len); \ } while (0) #define copy_from_user_page(vma, page, vaddr, dst, src, len) \ do { \ flush_cache_page(vma, vaddr, page_to_pfn(page));\ memcpy(dst, src, len); \ } while (0) However, sparc32_cachetlb_ops isn't exported and hence the error. Signed-off-by: Paul Gortmaker Signed-off-by: David S. Miller --- arch/sparc/mm/srmmu.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/sparc') diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c index 869023a..cfbe53c 100644 --- a/arch/sparc/mm/srmmu.c +++ b/arch/sparc/mm/srmmu.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include #include @@ -62,6 +63,7 @@ extern unsigned long last_valid_pfn; static pgd_t *srmmu_swapper_pg_dir; const struct sparc32_cachetlb_ops *sparc32_cachetlb_ops; +EXPORT_SYMBOL(sparc32_cachetlb_ops); #ifdef CONFIG_SMP const struct sparc32_cachetlb_ops *local_ops; -- cgit v1.1