Re: [PATCH net-next v12 3/5] eth fbnic: Add msix self test

[Paolo Abeni <pabeni@redhat.com>]

On 2/6/26 4:42 PM, mike.marciniszyn@gmail.com wrote:
> +/**
> + * fbnic_msix_test - Verify behavior of NIC interrupts
> + * @fbd: device to test
> + *
> + * This function is meant to test the global interrupt registers and the
> + * PCIe IP MSI-X functionality. It essentially goes through and tests
> + * test various combinations of the set, clear, and mask bits in order to
> + * verify the behavior is as we expect it to be from the driver.
> + *
> + * Return: non-zero on failure.
> + **/
> +int fbnic_msix_test(struct fbnic_dev *fbd)
> +{
> +	struct pci_dev *pdev = to_pci_dev(fbd->dev);
> +	struct fbnic_msix_test_data *test_data;
> +	int result = 0;
> +	u32 mask = 0;
> +	int i;
> +
> +	/* Allocate bitmap and IRQ vector table */
> +	test_data = kzalloc(sizeof(*test_data), GFP_KERNEL);
> +
> +	/* Result = 5 for memory allocation failure */
> +	if (!test_data)
> +		return 5;

Instead of magic numbers you could define some macros, or simply return
a boolean success/failures value (as the caller ignores the error code).

/P