linux-kernel - Re: [PATCH] powerpc/fadump: Remove duplicate message.

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Date:   Thu, 7 Nov 2019 17:42:48 +0100
From:   Michal Suchánek <msuchanek@...e.de>
To:     Hari Bathini <hbathini@...ux.ibm.com>
Cc:     Mahesh Salgaonkar <mahesh@...ux.vnet.ibm.com>,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        Paul Mackerras <paulus@...ba.org>
Subject: Re: [PATCH] powerpc/fadump: Remove duplicate message.

On Thu, Oct 24, 2019 at 01:16:51PM +0200, Michal Suchánek wrote:
> On Thu, Oct 24, 2019 at 04:08:08PM +0530, Hari Bathini wrote:
> > 
> > Michal, thanks for looking into this.
> > 
> > On 23/10/19 11:26 PM, Michal Suchanek wrote:
> > > There is duplicate message about lack of support by firmware in
> > > fadump_reserve_mem and setup_fadump. Due to different capitalization it
> > > is clear that the one in setup_fadump is shown on boot. Remove the
> > > duplicate that is not shown.
> > 
> > Actually, the message in fadump_reserve_mem() is logged. fadump_reserve_mem()
> > executes first and sets fw_dump.fadump_enabled to `0`, if fadump is not supported.
> > So, the other message in setup_fadump() doesn't get logged anymore with recent
> > changes. The right thing to do would be to remove similar message in setup_fadump() instead.
> 
> I need to re-check with a recent kernel build. I saw the message from
> setup_fadump and not the one from fadump_reserve_mem but not sure what
> the platform init code looked like in the kernel I tested with.

Indeed, I was missing the patch that changes the capitalization in
fadump_reserve_mem. In my kernel both messages are the same and the one
from fadump_reserve_mem is displayed.

Thanks

Michal