Re: [RFC] [PATCH] x86/efi: Adding efi_printks on memory allocationa and pci.reads

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On Wed, 10 Sep, at 01:00:22AM, Andre wrote:
> All other calls to allocate memory seem to make some noise already, with the
> exception of two calls (for gop, uga) in the setup_graphics path.
> 
> The purpose is to be noisy on worrysome errors immediately.
> 
> > commit fb86b2440de0ec10fe0272eb19d262ae7a01adb8
> > Author: Ulf Winkelvos <ulf@xxxxxxxxxxxx>
> > Date:   Thu Jul 10 02:12:41 2014 +0200
> >
> >     x86/efi: Add better error logging to EFI boot stub
> 
> introduces printing false alarms for lots of hardware. Rather than playing
> Whack a Mole with non-fatal exit conditions, try the other way round.
 
The usual way to reference existing commits is to quote the commit sha1
(abbreviated to 12-characters) with the patch subject in parenthesis and
quotes, i.e. commit fb86b2440de0 ("x86/efi: Add better error logging to
EFI boot stub") - I fixed this up.

> This is per Matt Fleming's suggestion:
> 
> > Where I think we could improve things
> > is by adding efi_printk() message in certain error paths. Clearly, not
> > all error paths need such messages, e.g. the EFI_INVALID_PARAMETER path
> > you highlighted above, but it makes sense for memory allocation and PCI
> > read failures.
> 
> http://article.gmane.org/gmane.linux.kernel.efi/4628
> 
> After this, the status check on the setup_efi_pci() function
> can go away again.
> 
> Signed-off-by: Andre Müller <andre.muller@xxxxxx>
> ---
>  arch/x86/boot/compressed/eboot.c | 29 ++++++++++++++++++++++-------
>  1 file changed, 22 insertions(+), 7 deletions(-)

Patch looks good to me. Applied, thanks!

-- 
Matt Fleming, Intel Open Source Technology Center
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