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Date: Fri, 13 Nov 2020 14:28:18 +0100 From: Sebastian Andrzej Siewior <bigeasy@...utronix.de> To: Andrey Konovalov <andreyknvl@...gle.com> Cc: Dmitry Vyukov <dvyukov@...gle.com>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, USB list <linux-usb@...r.kernel.org>, LKML <linux-kernel@...r.kernel.org>, Andrew Morton <akpm@...ux-foundation.org>, Alan Stern <stern@...land.harvard.edu>, Shuah Khan <shuah@...nel.org>, Alexander Potapenko <glider@...gle.com>, Marco Elver <elver@...gle.com>, Aleksandr Nogikh <nogikh@...gle.com>, Nazime Hande Harputluoglu <handeharput@...il.com>, Thomas Gleixner <tglx@...utronix.de> Subject: Re: [PATCH v4] kcov, usb: only collect coverage from __usb_hcd_giveback_urb in softirq On 2020-11-13 13:51:19 [+0100], Andrey Konovalov wrote: > Hi Sebastian, Hi Andrey, > Replaced with what and why? Linus requested in https://lkml.kernel.org/r/CAHk-=wht7kAeyR5xEW2ORj7m0hibVxZ3t+2ie8vNHLQfdbN2_g@mail.gmail.com/ that drivers should not change their behaviour on context magic like in_atomic(), in_interrupt() and so on. The USB bits were posted in https://lkml.kernel.org/r/20201019100629.419020859@linutronix.de and merged (which is probably the same time as this patch). I haven't look what this code should do or does but there are HCDs for which this is never true like the UHCI/OHCI controller for instance. > Thanks! Sebastian
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