[PATCH 2/2] nvme-pci: Add debug message on fail to read CSTS

[Wilfred Mallawa]

On Mon, 2025-10-20 at 17:29 +0200, Gerd Bayer wrote:
> Add a debug log spelling out that reading the CSTS register failed -
> to
> distinguish this from other reasons for ENODEV.
> 
> Signed-off-by: Gerd Bayer <gbayer at linux.ibm.com>
> ---
>  drivers/nvme/host/pci.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
> index
> 7544c4bac2c4a230d32cf729abb9e94bf93a921f..c3b0a9d56ac1f32f67ce0890bec
> d6425eb80ebad 100644
> --- a/drivers/nvme/host/pci.c
> +++ b/drivers/nvme/host/pci.c
> @@ -2906,6 +2906,7 @@ static int nvme_pci_enable(struct nvme_dev
> *dev)
>  	pci_set_master(pdev);
>  
>  	if (readl(dev->bar + NVME_REG_CSTS) == -1) {
> +		dev_dbg(dev->ctrl.device, "Read CSTS register
> failed");
>  		result = -ENODEV;
>  		goto disable;
>  	}
Reviewed-by: Wilfred Mallawa <wilfred.mallawa at wdc.com>

Wilfred