Re: [PATCH v3 2/3] misc: pci_endpoint_test: Handle -ENOSPC in subrange mapping test case

[Frank Li]

On Mon, Mar 23, 2026 at 12:59:28PM +0100, Christian Bruel wrote:
> Return -ENOSPC when the status reports the STATUS_NO_RESOURCE bit.
> This signifies to the pci_endpoint test to skip this test.
>
> Signed-off-by: Christian Bruel <christian.bruel@xxxxxxxxxxx>
> Reviewed-by: Niklas Cassel <cassel@xxxxxxxxxx>
Reviewed-by: Frank Li <Frank.Li@xxxxxxx>
> ---
>  drivers/misc/pci_endpoint_test.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/misc/pci_endpoint_test.c b/drivers/misc/pci_endpoint_test.c
> index 55e128ed82f00ae13b6fe9768cdbe56adbe8f9da..202196adf8ad84106ab3cf72016fa791a74697ee 100644
> --- a/drivers/misc/pci_endpoint_test.c
> +++ b/drivers/misc/pci_endpoint_test.c
> @@ -61,6 +61,7 @@
>  #define STATUS_BAR_SUBRANGE_SETUP_FAIL		BIT(15)
>  #define STATUS_BAR_SUBRANGE_CLEAR_SUCCESS	BIT(16)
>  #define STATUS_BAR_SUBRANGE_CLEAR_FAIL		BIT(17)
> +#define STATUS_NO_RESOURCE			BIT(18)
>
>  #define PCI_ENDPOINT_TEST_LOWER_SRC_ADDR	0x0c
>  #define PCI_ENDPOINT_TEST_UPPER_SRC_ADDR	0x10
> @@ -477,7 +478,7 @@ static int pci_endpoint_test_bar_subrange_cmd(struct pci_endpoint_test *test,
>
>  	status = pci_endpoint_test_readl(test, PCI_ENDPOINT_TEST_STATUS);
>  	if (status & fail_bit)
> -		return -EIO;
> +		return (status & STATUS_NO_RESOURCE) ? -ENOSPC : -EIO;
>
>  	if (!(status & ok_bit))
>  		return -EIO;
>
> --
> 2.34.1
>