linux-kernel - Re: [PATCH] ARM: head-common.S: Clear lr before jumping to start

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Date:   Sat, 14 Oct 2017 11:49:25 -0400 (EDT)
From:   Nicolas Pitre <nicolas.pitre@...aro.org>
To:     Russell King - ARM Linux <linux@...linux.org.uk>
cc:     Geert Uytterhoeven <geert+renesas@...der.be>,
        Arnd Bergmann <arnd@...db.de>,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        Tony Lindgren <tony@...mide.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Linux-Renesas <linux-renesas-soc@...r.kernel.org>,
        Chris Brandt <Chris.Brandt@...esas.com>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        linux-omap@...r.kernel.org,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] ARM: head-common.S: Clear lr before jumping to
 start_kernel()

On Sat, 14 Oct 2017, Russell King - ARM Linux wrote:

> On Sat, Oct 14, 2017 at 03:14:05PM +0100, Russell King - ARM Linux wrote:
> > On Thu, Oct 12, 2017 at 11:25:50AM -0400, Nicolas Pitre wrote:
> > > It should go into your devel-testing branch as this must be applied on 
> > > top of my xip_zdata branch that you merged there.
> > 
> > Thanks, it would've been good to have known that ahead of time.
> > 
> > It's why the patch system has the KernelVersion: tag:
> > 
> >  6. Kernel version.
> >     On a separate line, add a tag "KernelVersion: " followed by the kernel
> >     version that the patch was generated against. This should be formatted
> >     as "KernelVersion: 2.6.0-rmk1"
> > 
> > This is because that information is relevant for knowing where it should
> > be applied, and to which branch.  Having it be something else means I
> > have to guess, and that can result in the patch being discarded in this
> > manner if I don't find where it's supposed to be applied.
> > 
> > Yes, I know it's a pain to have to supply this information, but giving
> > accurate information there makes things a lot easier and quicker when
> > applying patches, rather than playing a game of "guess where it needs
> > to be applied, nope, doesn't apply there, try somewhere else."
> > 
> > Various people in the kernel community have different solutions to this.
> > For example, on netdev, it is preferred to state whether you want your
> > patch to be applied to "net" or "net-next" by adding that into the
> > "[PATCH ...]" tag in the subject line.  It's really about streamlining
> > the patch submission and application process.
> 
> The tag can take a plain kernel version and a kernel version suffixed
> with a shortened git hash (please avoid the full hash, it doesn't
> display well with the web presentation, and will probably be truncated
> when it's inserted into the database.)

Probably what you want is the output of 'git describe'.


Nicolas