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Command codes are never combined together as flags into a single value. Thus we can replace the series of "if" tests in pci_epf_test_cmd_handler() with a cleaner switch-case statement. This also allows checking that we got a valid command and print an error message if we did not. Link: https://lore.kernel.org/r/20230415023542.77601-11-dlemoal@kernel.org Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>