On 17/03/2021 10:52, Sergei Shtylyov wrote: > Hello! > > On 16.03.2021 20:57, Krzysztof Kozlowski wrote: > >> The Ralink MIPS platform does not use Common Clock Framework and does >> not define certain clock operations leading to compile test failures: >> >> /usr/bin/mips-linux-gnu-ld: drivers/usb/phy/phy-tegra-usb.o: in function `tegra_usb_phy_init': >> phy-tegra-usb.c:(.text+0x1dd4): undefined reference to `clk_get_parent' >> >> Reported-by: kernel test robot <lkp@xxxxxxxxx> >> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx> >> --- >> arch/mips/ralink/clk.c | 14 ++++++++++++++ >> 1 file changed, 14 insertions(+) >> >> diff --git a/arch/mips/ralink/clk.c b/arch/mips/ralink/clk.c >> index 2f9d5acb38ea..8387177a47ef 100644 >> --- a/arch/mips/ralink/clk.c >> +++ b/arch/mips/ralink/clk.c >> @@ -70,6 +70,20 @@ long clk_round_rate(struct clk *clk, unsigned long rate) >> } >> EXPORT_SYMBOL_GPL(clk_round_rate); >> >> +int clk_set_parent(struct clk *clk, struct clk *parent) >> +{ >> + WARN_ON(clk); >> + return -1; > > Shouldn't this be a proepr error code (-1 corresponds to -EPRERM)? Could be ENODEV or EINVAL but all other stubs here and in ar7/clock.c use -1. Do you prefer it then to have it inconsistent with others? Best regards, Krzysztof