From: Randy Dunlap <rdunlap@xxxxxxxxxxxxx> PCI endpoint test driver uses crc32_le() so it should select CRC32. Fixes this build error (when CRC32=m): drivers/built-in.o: In function `pci_epf_test_cmd_handler': pci-epf-test.c:(.text+0x2d98d): undefined reference to `crc32_le' Fixes 349e7a85b25f (PCI: endpoint: functions: Add an EP function to test PCI). Reported-by: kbuild test robot <fengguang.wu@xxxxxxxxx> Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx> Cc: Kishon Vijay Abraham I <kishon@xxxxxx> Cc: Bjorn Helgaas <bhelgaas@xxxxxxxxxx> --- drivers/pci/endpoint/functions/Kconfig | 1 + 1 file changed, 1 insertion(+) --- lnx-412-rc4.orig/drivers/pci/endpoint/functions/Kconfig +++ lnx-412-rc4/drivers/pci/endpoint/functions/Kconfig @@ -5,6 +5,7 @@ config PCI_EPF_TEST tristate "PCI Endpoint Test driver" depends on PCI_ENDPOINT + select CRC32 help Enable this configuration option to enable the test driver for PCI Endpoint.