On Wed, Jul 28, 2021 at 01:31:19PM -0500, Shanker R Donthineni wrote: > Hi Bjorn, > > On 7/27/21 5:59 PM, Bjorn Helgaas wrote: > >> diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c > >> index fefa6d7b3..42440cb10 100644 > >> --- a/drivers/pci/pci.c > >> +++ b/drivers/pci/pci.c > >> @@ -72,6 +72,14 @@ static void pci_dev_d3_sleep(struct pci_dev *dev) > >> msleep(delay); > >> } > >> > >> +int pci_reset_supported(struct pci_dev *dev) > >> +{ > >> + u8 null_reset_methods[PCI_NUM_RESET_METHODS] = { 0 }; > >> + > >> + return memcmp(null_reset_methods, > >> + dev->reset_methods, sizeof(null_reset_methods)); > > I think "return dev->reset_methods[0] != 0;" is sufficient, isn't it? > > > > Agree with you, it simplifies code logic and can be moved to > "include/linux/pci.h" with inline definition. Can we change return > type to 'bool' instead of 'int' ? Does it need to be exported to drivers? Looks like it's only used inside drivers/pci/, so it shouldn't be in include/linux/pci.h. Making it bool is fine with me. > static inline bool pci_reset_supported(struct pci_dev *dev) > { > return !!dev->reset_methods[0]; > } >