target/linux/generic/pending-6.6/732-00-net-ethernet-mtk_eth_soc-compile-out-netsys-v2-code-.patch

   1 From: Felix Fietkau <nbd@nbd.name>
   2 Date: Thu, 27 Oct 2022 23:39:52 +0200
   3 Subject: [PATCH] net: ethernet: mtk_eth_soc: compile out netsys v2 code
   4  on mt7621
   5
   6 Avoid some branches in the hot path on low-end devices with limited CPU power,
   7 and reduce code size
   8
   9 Signed-off-by: Felix Fietkau <nbd@nbd.name>
  10 ---
  11
  12 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
  13 +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
  14 @@ -1326,6 +1326,22 @@ struct mtk_mac {
  15  /* the struct describing the SoC. these are declared in the soc_xyz.c files */
  16  extern const struct of_device_id of_mtk_match[];
  17
  18 +#ifdef CONFIG_SOC_MT7621
  19 +static inline bool mtk_is_netsys_v1(struct mtk_eth *eth)
  20 +{
  21 +       return true;
  22 +}
  23 +
  24 +static inline bool mtk_is_netsys_v2_or_greater(struct mtk_eth *eth)
  25 +{
  26 +       return false;
  27 +}
  28 +
  29 +static inline bool mtk_is_netsys_v3_or_greater(struct mtk_eth *eth)
  30 +{
  31 +       return false;
  32 +}
  33 +#else
  34  static inline bool mtk_is_netsys_v1(struct mtk_eth *eth)
  35  {
  36         return eth->soc->version == 1;
  37 @@ -1340,6 +1356,7 @@ static inline bool mtk_is_netsys_v3_or_g
  38  {
  39         return eth->soc->version > 2;
  40  }
  41 +#endif
  42
  43  static inline struct mtk_foe_entry *
  44  mtk_foe_get_entry(struct mtk_ppe *ppe, u16 hash)