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SubjectRe: [PATCH] firmware: raspberrypi: Fix firmware calls with large buffers
On Thu, Nov 15, 2018 at 10:05 AM, Stefan Wahren <> wrote:
> Hi James,
> please look at
> because there are several issues with this patch. Most critical one is
> that i received it not as plain text. Please make sure that send your
> patch with git send-email.

The irony is I had to fight Gmail over your multipart HTML+plain
email. Yay email clients! ;)

> Am 15.11.18 um 14:18 schrieb James Hughes:
> > A previous change (5bfdc1097654) moved away from VLA's
> Please use the commit format mentioned in the link above.

And actually, this SHA isn't the upstream SHA. This should be:

a1547e0bca51 ("firmware: raspberrypi: Remove VLA usage")

> > to a fixed maximum size for mailbox data.
> > However, some mailbox calls use larger data buffers
> > than the maximum allowed in that change. This fix therefor

Which ones did this? In the initial change I couldn't find anything
that exceeded 32 bytes. (I'm just curious if I missed something or if
something new appeared.)

> > [...]
> > + /* Some mailboxes can use over 1k bytes. Rather than checking

Up to Eric, but I think the preferred comment style is:

* lines go here

Otherwise, this seems fine to me. Thanks for getting it fixed!

Kees Cook

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