This patch adds a MMU dependency to configure the ZSMALLOC in drivers/staging/zsmalloc/Kconfig. Without this patch, build system can lead to build failure. This was observed during randconfig testing, in which ZSMALLOC was enabled w/o MMU being enabled. Following was the error:

LD vmlinux drivers/built-in.o: In function `__zs_map_object': drivers/staging/zsmalloc/zsmalloc-main.c:650: undefined reference to `map_vm_area' make: *** [vmlinux] Error 1

Signed-off-by: Manjunath Goudar manjunath.goudar@linaro.org Cc: Arnd Bergmann arnd@arndb.de Cc: Deepak Saxena dsaxena@linaro.org Cc: Linus Walleij linus.walleij@linaro.org Cc: Greg Kroah-Hartman gregkh@linuxfoundation.org Cc: Minchan Kim minchan@kernel.org Cc: Joerg Roedel joro@8bytes.org Cc: devel@driverdev.osuosl.org Cc: linux-kernel@vger.kernel.org --- drivers/staging/zsmalloc/Kconfig | 1 + 1 file changed, 1 insertion(+)

diff --git a/drivers/staging/zsmalloc/Kconfig b/drivers/staging/zsmalloc/Kconfig index 7fab032..0ae13cd 100644 --- a/drivers/staging/zsmalloc/Kconfig +++ b/drivers/staging/zsmalloc/Kconfig @@ -1,5 +1,6 @@ config ZSMALLOC bool "Memory allocator for compressed pages" + depends on MMU default n help zsmalloc is a slab-based memory allocator designed to store