Greg:
Sorry, the Subject line of the original email left out "[PATCH]" at the
beginning. Will it still work with your scripts?
Alan Stern
On Thu, 23 Jun 2016, Alan Stern wrote:
> The HOSTPC extension registers found in some EHCI implementations form
> a variable-length array, with one element for each port. Therefore
> the hostpc field in struct ehci_regs should be declared as a
> zero-length array, not a single-element array.
>
> This fixes a problem reported by UBSAN.
>
> Signed-off-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
> Reported-by: Wilfried Klaebe <linux-kernel@xxxxxxxxxxxxxxxxxxxxxxxxxx>
> Tested-by: Wilfried Klaebe <linux-kernel@xxxxxxxxxxxxxxxxxxxxxxxxxx>
> CC: <stable@xxxxxxxxxxxxxxx>
>
> ---
>
>
> [as1803]
>
>
> include/linux/usb/ehci_def.h | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> Index: usb-4.x/include/linux/usb/ehci_def.h
> ===================================================================
> --- usb-4.x.orig/include/linux/usb/ehci_def.h
> +++ usb-4.x/include/linux/usb/ehci_def.h
> @@ -180,11 +180,11 @@ struct ehci_regs {
> * PORTSCx
> */
> /* HOSTPC: offset 0x84 */
> - u32 hostpc[1]; /* HOSTPC extension */
> + u32 hostpc[0]; /* HOSTPC extension */
> #define HOSTPC_PHCD (1<<22) /* Phy clock disable */
> #define HOSTPC_PSPD (3<<25) /* Port speed detection */
>
> - u32 reserved5[16];
> + u32 reserved5[17];
>
> /* USBMODE_EX: offset 0xc8 */
> u32 usbmode_ex; /* USB Device mode extension */
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