From: Joe Perches <j...@perches.com> Date: Tue, 05 Feb 2019 10:42:54 -0800
> On Mon, 2019-02-04 at 19:20 -0800, David Miller wrote: >> From: Thierry Reding <thierry.red...@gmail.com> >> Date: Mon, 4 Feb 2019 17:42:13 +0100 >> >> > @@ -7316,7 +7325,7 @@ static int rtl_get_ether_clk(struct rtl8169_private >> > *tp) >> > static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id >> > *ent) >> > { >> > const struct rtl_cfg_info *cfg = rtl_cfg_infos + ent->driver_data; >> > - u8 mac_addr[ETH_ALEN] __aligned(4) = {}; >> > + u8 mac_addr[ETH_ALEN] = {}; >> > struct rtl8169_private *tp; >> >> I agree with Heiner, you have to provide at least 2 byte alignment for this >> buffer due to the reasons he stated. > > It's declared after a pointer so it is already is 2 byte aligned. > > A lot of drivers wouldn't work otherwise. That's assuming a lot about what the compiler will do when it allocates local variables to the stack. I want it _explicit_.