Re: [RFC PATCH] usb: xhci-mtk: handle bandwidth table rollover
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2021-08-09 09:11:48
Also in:
linux-arm-kernel, linux-usb, lkml
On Mon, Aug 09, 2021 at 04:59:29PM +0800, Ikjoon Jang wrote:
xhci-mtk has 64 slots for periodic bandwidth calculations and each slot represents byte budgets on a microframe. When an endpoint's allocation sits on the boundary of the table, byte budgets' slot should be rolled over but the current implementation doesn't. This patch applies a 6 bits mask to the microframe index to handle its rollover 64 slots and prevent out-of-bounds array access. Signed-off-by: Ikjoon Jang <redacted> --- drivers/usb/host/xhci-mtk-sch.c | 79 +++++++++------------------------ drivers/usb/host/xhci-mtk.h | 1 + 2 files changed, 23 insertions(+), 57 deletions(-)
Why is this "RFC"? What needs to be addressed in this change before it can be accepted? thanks, greg k-h _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek