linux_dsm_epyc7002/arch/sparc/mm
Paul Gortmaker a56b072fa3 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 <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-19 19:49:48 -05:00
..
extable.c sparc: Add module.h to files previously implicitly using it. 2011-10-31 19:30:54 -04:00
fault_32.c arch: mm: pass userspace fault flag to generic fault handler 2013-09-12 15:38:01 -07:00
fault_64.c sparc64: Implement HAVE_CONTEXT_TRACKING 2013-11-14 14:57:21 -08:00
gup.c sparc64: Encode huge PMDs using PTE encoding. 2013-11-13 12:33:08 -08:00
highmem.c sparc32: move kmap_init() to highmem.c 2012-07-26 16:46:17 -07:00
hugetlbpage.c sparc: delete non-required instances of include <linux/init.h> 2014-01-28 23:38:23 -08:00
hypersparc.S [PATCH] sparc32: vm_area_struct access for old Sun SPARCs. 2013-07-10 13:56:10 -07:00
init_32.c mm/SPARC: prepare for removing num_physpages and simplify mem_init() 2013-07-03 16:07:37 -07:00
init_64.c memblock: make memblock_set_node() support different memblock_type 2014-01-21 16:19:44 -08:00
init_64.h sparc64: Document the shift counts used to validate linear kernel addresses. 2013-11-12 15:22:34 -08:00
io-unit.c sparc32: Convert mmu_* interfaces from btfixup to method ops. 2012-05-13 13:57:05 -07:00
iommu.c sparc/iommu: fix typo s/265KB/256KB/ 2013-03-31 19:29:12 -04:00
leon_mm.c sparc32: srmmu_probe now knows about leon too 2012-05-27 23:52:51 -07:00
Makefile sparc32: introduce run-time patching of srmmu access functions 2012-05-27 23:52:49 -07:00
srmmu_access.S sparc32: introduce run-time patching of srmmu access functions 2012-05-27 23:52:49 -07:00
srmmu.c sparc32: make copy_to/from_user_page() usable from modular code 2014-02-19 19:49:48 -05:00
srmmu.h sparc32,leon: move leon mmu functions to leon_mm.c 2012-05-19 23:27:38 -07:00
swift.S [PATCH] sparc32: vm_area_struct access for old Sun SPARCs. 2013-07-10 13:56:10 -07:00
tlb.c sparc: delete non-required instances of include <linux/init.h> 2014-01-28 23:38:23 -08:00
tsb.c sparc64: Move from 4MB to 8MB huge pages. 2013-11-12 15:22:34 -08:00
tsunami.S [PATCH] sparc32: vm_area_struct access for old Sun SPARCs. 2013-07-10 13:56:10 -07:00
ultra.S sparc64: Make PAGE_OFFSET variable. 2013-11-12 15:22:34 -08:00
viking.S [PATCH] sparc32: vm_area_struct access for old Sun SPARCs. 2013-07-10 13:56:10 -07:00