Building zsmalloc as a module does not work on ARM because it uses
an interface that is not exported:
ERROR: "flush_tlb_kernel_range" [drivers/staging/zsmalloc/zsmalloc.ko]
undefined!
Since this is only used as a performance optimization and only on ARM,
we can avoid the problem simply by not using that optimization when
building zsmalloc it is a loadable module.
flush_tlb_kernel_range is often an inline function, but out of the
architectures that use an extern function, only powerpc exports
it.
Signed-off-by: Arnd Bergmann <a...@arndb.de>
Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
Cc: Seth Jennings <sjenn...@linux.vnet.ibm.com>
Cc: Nitin Gupta <ngu...@vflare.org>
---
drivers/staging/zsmalloc/zsmalloc-main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/zsmalloc/zsmalloc-main.c
b/drivers/staging/zsmalloc/zsmalloc-main.c
index e78d262..291c1d8 100644
--- a/drivers/staging/zsmalloc/zsmalloc-main.c
+++ b/drivers/staging/zsmalloc/zsmalloc-main.c
@@ -225,7 +225,7 @@ struct zs_pool {
* so that USE_PGTABLE_MAPPING is defined. This causes zsmalloc to use
* page table mapping rather than copying for object mapping.
*/
-#if defined(CONFIG_ARM)
+#if defined(CONFIG_ARM) && !defined(MODULE)
#define USE_PGTABLE_MAPPING
#endif
--
1.8.1.2
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
