On Thu, Jan 21, 2021 at 05:10:05PM +0800, Su Yanjun wrote: Please describe why you change this.
> No functional effect.
Not quite:
scripts/bloat-o-meter shows:
add/remove: 0/0 grow/shrink: 3/0 up/down: 104/0 (104)
Function old new delta
mcp251xfd_handle_tefif 980 1028 +48
mcp251xfd_irq 3716 3756 +40
mcp251xfd_handle_rxif_ring 964 980 +16
Total: Before=20832, After=20936, chg +0.50%
>
> Signed-off-by: Su Yanjun <suyanjun...@gmail.com>
> ---
> drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c | 15 ++++++++++++---
> 1 file changed, 12 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c
> b/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c
> index f07e8b737d31..b15bfd50b863 100644
> --- a/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c
> +++ b/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c
> @@ -181,6 +181,12 @@ static int mcp251xfd_clks_and_vdd_disable(const struct
> mcp251xfd_priv *priv)
> return 0;
> }
>
> +static inline int
> +mcp251xfd_get_val_bytes(const struct mcp251xfd_priv *priv)
> +{
> + return regmap_get_val_bytes(priv->map_reg);
You're always using the "map_reg" here
> +}
> +
> static inline u8
> mcp251xfd_cmd_prepare_write_reg(const struct mcp251xfd_priv *priv,
> union mcp251xfd_write_reg_buf *write_reg_buf,
> @@ -1308,6 +1314,7 @@ mcp251xfd_tef_obj_read(const struct mcp251xfd_priv
> *priv,
> const u8 offset, const u8 len)
> {
> const struct mcp251xfd_tx_ring *tx_ring = priv->tx;
> + int val_bytes = mcp251xfd_get_val_bytes(priv);
>
> if (IS_ENABLED(CONFIG_CAN_MCP251XFD_SANITY) &&
> (offset > tx_ring->obj_num ||
> @@ -1322,7 +1329,7 @@ mcp251xfd_tef_obj_read(const struct mcp251xfd_priv
> *priv,
> return regmap_bulk_read(priv->map_rx,
But this works on map_rx.
> mcp251xfd_get_tef_obj_addr(offset),
> hw_tef_obj,
> - sizeof(*hw_tef_obj) / sizeof(u32) * len);
> + sizeof(*hw_tef_obj) / val_bytes * len);
> }
>
> static int mcp251xfd_handle_tefif(struct mcp251xfd_priv *priv)
> @@ -1511,11 +1518,12 @@ mcp251xfd_rx_obj_read(const struct mcp251xfd_priv
> *priv,
> const u8 offset, const u8 len)
> {
> int err;
> + int val_bytes = mcp251xfd_get_val_bytes(priv);
>
> err = regmap_bulk_read(priv->map_rx,
Same here
> mcp251xfd_get_rx_obj_addr(ring, offset),
> hw_rx_obj,
> - len * ring->obj_size / sizeof(u32));
> + len * ring->obj_size / val_bytes);
>
> return err;
> }
> @@ -2139,6 +2147,7 @@ static irqreturn_t mcp251xfd_irq(int irq, void *dev_id)
> struct mcp251xfd_priv *priv = dev_id;
> irqreturn_t handled = IRQ_NONE;
> int err;
> + int val_bytes = mcp251xfd_get_val_bytes(priv);
>
> if (priv->rx_int)
> do {
> @@ -2162,7 +2171,7 @@ static irqreturn_t mcp251xfd_irq(int irq, void *dev_id)
> err = regmap_bulk_read(priv->map_reg, MCP251XFD_REG_INT,
Here it's map_reg.
> &priv->regs_status,
> sizeof(priv->regs_status) /
> - sizeof(u32));
> + val_bytes);
> if (err)
> goto out_fail;
>
> --
> 2.25.1
Marc
--
Pengutronix e.K. | Marc Kleine-Budde |
Embedded Linux | https://www.pengutronix.de |
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