On Sat, Dec 21, 2024 at 10:10:09PM +0800, Hans Zhang wrote: Subject should be improved: misc: pci_endpoint_test: Fix overflow of bar_size > With 8GB BAR2, running pcitest -b 2 fails with "TEST FAILED". > > The return value of the `pci_resource_len` interface is not an integer. > Using `pcitest` with an 8GB BAR2, the bar_size of integer type will > overflow. > Change the data type of bar_size from integer to resource_size_t, to fix > the above issue. > > Signed-off-by: Hans Zhang <18255117159@xxxxxxx> With that, Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx> - Mani > Reviewed-by: Niklas Cassel <cassel@xxxxxxxxxx> > > --- > Changes since v2: > https://lore.kernel.org/linux-pci/20241220075253.16791-1-18255117159@xxxxxxx/ > > - Fix "changes" part goes below the --- line > - The patch commit message were modified. > > Changes since v1: > https://lore.kernel.org/linux-pci/20241217121220.19676-1-18255117159@xxxxxxx/ > > - The patch subject and commit message were modified. > --- > 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 3aaaf47fa4ee..414c4e55fb0a 100644 > --- a/drivers/misc/pci_endpoint_test.c > +++ b/drivers/misc/pci_endpoint_test.c > @@ -280,10 +280,11 @@ static int pci_endpoint_test_bar_memcmp(struct pci_endpoint_test *test, > static bool pci_endpoint_test_bar(struct pci_endpoint_test *test, > enum pci_barno barno) > { > - int j, bar_size, buf_size, iters, remain; > void *write_buf __free(kfree) = NULL; > void *read_buf __free(kfree) = NULL; > struct pci_dev *pdev = test->pdev; > + int j, buf_size, iters, remain; > + resource_size_t bar_size; > > if (!test->bar[barno]) > return false; > -- > 2.25.1 > -- மணிவண்ணன் சதாசிவம்
