Iff TSU registers exist on a given [G]Ether controller, they always include the CAM entry table registers (TSU_ADR{H|L}<n>), thus the check for invalid TSU_ADRH0 offset in __sh_eth_get_regs() is useless... Signed-off-by: Sergei Shtylyov <sergei.shtylyov@xxxxxxxxxxxxxxxxxx> --- drivers/net/ethernet/renesas/sh_eth.c | 23 +++++++++-------------- 1 file changed, 9 insertions(+), 14 deletions(-) Index: net-next/drivers/net/ethernet/renesas/sh_eth.c =================================================================== --- net-next.orig/drivers/net/ethernet/renesas/sh_eth.c +++ net-next/drivers/net/ethernet/renesas/sh_eth.c @@ -2153,22 +2153,17 @@ static size_t __sh_eth_get_regs(struct n add_tsu_reg(TSU_POST2); add_tsu_reg(TSU_POST3); add_tsu_reg(TSU_POST4); - if (mdp->reg_offset[TSU_ADRH0] != SH_ETH_OFFSET_INVALID) { - /* This is the start of a table, not just a single - * register. - */ - if (buf) { - unsigned int i; + /* This is the start of a table, not just a single register. */ + if (buf) { + unsigned int i; - mark_reg_valid(TSU_ADRH0); - for (i = 0; i < SH_ETH_TSU_CAM_ENTRIES * 2; i++) - *buf++ = ioread32( - mdp->tsu_addr + - mdp->reg_offset[TSU_ADRH0] + - i * 4); - } - len += SH_ETH_TSU_CAM_ENTRIES * 2; + mark_reg_valid(TSU_ADRH0); + for (i = 0; i < SH_ETH_TSU_CAM_ENTRIES * 2; i++) + *buf++ = ioread32(mdp->tsu_addr + + mdp->reg_offset[TSU_ADRH0] + + i * 4); } + len += SH_ETH_TSU_CAM_ENTRIES * 2; } #undef mark_reg_valid