Re: [PATCH RESEND] vdpa: solidrun: Fix UB bug with devres

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On Wed, 2024-10-16 at 12:51 +0200, Greg KH wrote:
> On Wed, Oct 16, 2024 at 11:22:48AM +0200, Philipp Stanner wrote:
> > On Wed, 2024-10-16 at 12:08 +0300, Andy Shevchenko wrote:
> > > On Wed, Oct 16, 2024 at 09:25:54AM +0200, Philipp Stanner wrote:
> > > > In psnet_open_pf_bar() and snet_open_vf_bar() a string later
> > > > passed
> > > > to
> > > > pcim_iomap_regions() is placed on the stack. Neither
> > > > pcim_iomap_regions() nor the functions it calls copy that
> > > > string.
> > > > 
> > > > Should the string later ever be used, this, consequently,
> > > > causes
> > > > undefined behavior since the stack frame will by then have
> > > > disappeared.
> > > > 
> > > > Fix the bug by allocating the strings on the heap through
> > > > devm_kasprintf().
> > > 
> > > > ---
> > > 
> > > I haven't found the reason for resending. Can you elaborate here?
> > 
> > Impatience ;p
> > 
> > This is not a v2.
> > 
> > I mean, it's a bug, easy to fix and merge [and it's blocking my
> > other
> > PCI work, *cough*]. Should contributors wait longer than 8 days
> > until
> > resending in your opinion?
> 
> 2 weeks is normally the expected response time, but each subsystem
> might
> have other time limites, the documentation should show those that do.

Where do we document that?

Regarding resend intervals, the official guide line is contradictory:
"You should receive comments within a few weeks (typically 2-3)" <->
"Wait for a minimum of one week before resubmitting or pinging
reviewers" <--> "It’s also ok to resend the patch or the patch series
after a couple of weeks"

https://www.kernel.org/doc/html/latest/process/submitting-patches.html#don-t-get-discouraged-or-impatient


We could make the docu more consistent and specify 2 weeks as the
minimum time.

P.


> 
> While you wait, take the time to review other pending patches for
> that
> maintainer, that will ensure that your patches move to the top as
> they
> will be the only ones remaining.
> 
> thanks,
> 
> greg k-h
> 






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