From 019ded3aa7c9799fbe6533baeac9aafc7063bd39 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Tue, 15 Mar 2016 22:47:14 +0100 Subject: [PATCH] net: mvneta: bm: clarify dependencies MVNETA_BM has a dependency on MVNETA, so we can only select the former if the latter is enabled. However, the code dependency is the reverse: The mvneta module can call into the mvneta_bm module, so mvneta cannot be a built-in if mvneta_bm is a module, or we get a link error: drivers/net/built-in.o: In function `mvneta_remove': drivers/net/ethernet/marvell/mvneta.c:4211: undefined reference to `mvneta_bm_pool_destroy' drivers/net/built-in.o: In function `mvneta_bm_update_mtu': drivers/net/ethernet/marvell/mvneta.c:1034: undefined reference to `mvneta_bm_bufs_free' This avoids the problem by further clarifying the dependency so that MVNETA_BM is a silent Kconfig option that gets turned on by the new MVNETA_BM_ENABLE option. This way both the core HWBM module and the MVNETA_BM code are always built-in when needed. Signed-off-by: Arnd Bergmann Fixes: dc35a10f68d3 ("net: mvneta: bm: add support for hardware buffer management") Signed-off-by: David S. Miller --- drivers/net/ethernet/marvell/Kconfig | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/marvell/Kconfig b/drivers/net/ethernet/marvell/Kconfig index 62d80fddbe34..b5c6d42daa12 100644 --- a/drivers/net/ethernet/marvell/Kconfig +++ b/drivers/net/ethernet/marvell/Kconfig @@ -40,10 +40,9 @@ config MVMDIO This driver is used by the MV643XX_ETH and MVNETA drivers. -config MVNETA_BM +config MVNETA_BM_ENABLE tristate "Marvell Armada 38x/XP network interface BM support" depends on MVNETA - select HWBM ---help--- This driver supports auxiliary block of the network interface units in the Marvell ARMADA XP and ARMADA 38x SoC @@ -67,6 +66,15 @@ config MVNETA driver, which should be used for the older Marvell SoCs (Dove, Orion, Discovery, Kirkwood). +config MVNETA_BM + tristate + default y if MVNETA=y && MVNETA_BM_ENABLE + default MVNETA_BM_ENABLE + select HWBM + help + MVNETA_BM must not be 'm' if MVNETA=y, so this symbol ensures + that all dependencies are met. + config MVPP2 tristate "Marvell Armada 375 network interface support" depends on MACH_ARMADA_375