From: David Miller <davem@davemloft.net>
To: elder@linaro.org
Cc: kuba@kernel.org, evgreen@chromium.org, subashab@codeaurora.org,
cpratapa@codeaurora.org, bjorn.andersson@linaro.org,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH net-next 1/5] net: ipa: head-of-line block registers are RX only
Date: Tue, 30 Jun 2020 12:21:14 -0700 (PDT) [thread overview]
Message-ID: <20200630.122114.69420116631257185.davem@davemloft.net> (raw)
In-Reply-To: <825816f3-5797-bbcf-571b-c6a7a6821397@linaro.org>
From: Alex Elder <elder@linaro.org>
Date: Mon, 29 Jun 2020 20:09:58 -0500
> But the reason I was
> considering it conditional on a config option is that Qualcomm
> has a crash analysis tool that expects a BUG() call to stop the
> system so its instant state can be captured. I don't use this
> tool, and I might be mistaken about what's required.
A Qualcomm debugging tool with poorly choosen expectations does not
determine how we do things in the kernel.
> What I would *really* like to do is have a way to gracefully
> shut down just the IPA driver when an unexpected condition occurs,
> so I can stop everything without crashing the system. But doing
> that in a way that works in all cases is Hard.
Users would like their system and the IPA device to continue, even
if in a reduced functionality manner, if possible.
Doing things to make that less likely to be possible is undesirable.
next prev parent reply other threads:[~2020-06-30 19:21 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-29 21:49 [PATCH net-next 0/5] net: ipa: endpoint configuration updates Alex Elder
2020-06-29 21:49 ` [PATCH net-next 1/5] net: ipa: head-of-line block registers are RX only Alex Elder
2020-06-30 0:35 ` Jakub Kicinski
2020-06-30 1:01 ` Alex Elder
2020-06-30 1:03 ` David Miller
2020-06-30 1:09 ` Alex Elder
2020-06-30 19:21 ` David Miller [this message]
2020-06-30 22:41 ` Alex Elder
2020-06-30 22:49 ` David Miller
2020-06-29 21:49 ` [PATCH net-next 2/5] net: ipa: metadata_mask register is " Alex Elder
2020-06-29 21:49 ` [PATCH net-next 3/5] net: ipa: mode register is TX only Alex Elder
2020-06-29 21:49 ` [PATCH net-next 4/5] net: ipa: clarify endpoint register macro constraints Alex Elder
2020-06-29 21:49 ` [PATCH net-next 5/5] net: ipa: HOL_BLOCK_EN_FMASK is a 1-bit mask Alex Elder
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