If TI_DAVINCI_EMAC=y and GENERIC_ALLOCATOR is not set, below erros can be seen: drivers/net/ethernet/ti/davinci_cpdma.o: In function `cpdma_desc_pool_destroy.isra.14': davinci_cpdma.c:(.text+0x359): undefined reference to `gen_pool_size' davinci_cpdma.c:(.text+0x365): undefined reference to `gen_pool_avail' davinci_cpdma.c:(.text+0x373): undefined reference to `gen_pool_avail' davinci_cpdma.c:(.text+0x37f): undefined reference to `gen_pool_size' drivers/net/ethernet/ti/davinci_cpdma.o: In function `__cpdma_chan_free': davinci_cpdma.c:(.text+0x4a2): undefined reference to `gen_pool_free_owner' drivers/net/ethernet/ti/davinci_cpdma.o: In function `cpdma_chan_submit_si': davinci_cpdma.c:(.text+0x66c): undefined reference to `gen_pool_alloc_algo_owner' davinci_cpdma.c:(.text+0x805): undefined reference to `gen_pool_free_owner' drivers/net/ethernet/ti/davinci_cpdma.o: In function `cpdma_ctlr_create': davinci_cpdma.c:(.text+0xabd): undefined reference to `devm_gen_pool_create' davinci_cpdma.c:(.text+0xb79): undefined reference to `gen_pool_add_owner' drivers/net/ethernet/ti/davinci_cpdma.o: In function `cpdma_check_free_tx_desc': davinci_cpdma.c:(.text+0x16c6): undefined reference to `gen_pool_avail' This patch mades TI_DAVINCI_EMAC select GENERIC_ALLOCATOR. Fixes: 99f629718272 ("net: ethernet: ti: cpsw: drop TI_DAVINCI_CPDMA config option") Signed-off-by: Mao Wenan <maowenan@xxxxxxxxxx> --- drivers/net/ethernet/ti/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/ti/Kconfig b/drivers/net/ethernet/ti/Kconfig index 834afca3..137632b 100644 --- a/drivers/net/ethernet/ti/Kconfig +++ b/drivers/net/ethernet/ti/Kconfig @@ -22,6 +22,7 @@ config TI_DAVINCI_EMAC depends on ARM && ( ARCH_DAVINCI || ARCH_OMAP3 ) || COMPILE_TEST select TI_DAVINCI_MDIO select PHYLIB + select GENERIC_ALLOCATOR ---help--- This driver supports TI's DaVinci Ethernet . -- 2.7.4