On Tue, Mar 18, 2025 at 05:49:05PM +0100, Andrew Lunn wrote: ... > > - char phy_name[20]; > > + char phy_name[MII_BUS_ID_SIZE + 5]; > > Could you explain the + 5? > > https://elixir.bootlin.com/linux/v6.13.7/source/drivers/net/ethernet/davicom/dm9051.c#L1156 > https://elixir.bootlin.com/linux/v6.13.7/source/drivers/net/ethernet/freescale/fec_main.c#L2454 > https://elixir.bootlin.com/linux/v6.13.7/source/drivers/net/ethernet/xilinx/ll_temac.h#L348 > > The consensus seems to be + 3. u16, gcc can't proove the range, it assumes 65536 is the maximum. include/linux/phy.h:312:20: note: directive argument in the range [0, 65535] -- With Best Regards, Andy Shevchenko
