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 <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Cc: Seth Jennings <[email protected]> Cc: Nitin Gupta <[email protected]> --- 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 [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
