Re: [PATCH v3] PCI: shpchp: Remove hpc_ops

From: Bjorn Helgaas
Date: Thu Aug 01 2024 - 20:09:02 EST


On Tue, Jul 23, 2024 at 02:43:25PM +0300, ngn wrote:
> Remove the hpc_ops struct from shpchp. This struct is unnecessary as
> no other hotplug controller implements it. A similar thing has already
> been done in pciehp with commit 82a9e79ef132 ("PCI: pciehp: remove hpc_ops")

> +++ b/drivers/pci/hotplug/shpchp_hpc.c
> @@ -167,7 +167,6 @@
>
> static irqreturn_t shpc_isr(int irq, void *dev_id);
> static void start_int_poll_timer(struct controller *ctrl, int sec);
> -static int hpc_check_cmd_status(struct controller *ctrl);
>
> static inline u8 shpc_readb(struct controller *ctrl, int reg)
> {
> @@ -317,7 +316,7 @@ static int shpc_write_cmd(struct slot *slot, u8 t_slot, u8 cmd)
> if (retval)
> goto out;
>
> - cmd_status = hpc_check_cmd_status(slot->ctrl);
> + cmd_status = shpchp_check_cmd_status(slot->ctrl);

This rename looks like it should be a separate patch because it's not
part of removing hpc_ops.

> if (cmd_status) {
> ctrl_err(ctrl, "Failed to issued command 0x%x (error code = %d)\n",
> cmd, cmd_status);
> @@ -328,7 +327,7 @@ static int shpc_write_cmd(struct slot *slot, u8 t_slot, u8 cmd)
> return retval;
> }
>
> -static int hpc_check_cmd_status(struct controller *ctrl)
> +int shpchp_check_cmd_status(struct controller *ctrl)
> {
> int retval = 0;
> u16 cmd_status = shpc_readw(ctrl, CMD_STATUS) & 0x000F;