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* [patch] x86, efi: precedence error in setup_efi_pci()
@ 2012-12-07  6:16 Dan Carpenter
       [not found] ` <20121207061649.GA18220-mgFCXtclrQlZLf2FXnZxJA@public.gmane.org>
  0 siblings, 1 reply; 4+ messages in thread
From: Dan Carpenter @ 2012-12-07  6:16 UTC (permalink / raw)
  To: Matt Fleming, Matthew Garrett
  Cc: H. Peter Anvin, Thomas Gleixner, Ingo Molnar,
	x86-DgEjT+Ai2ygdnm+yROfE0A, linux-efi-u79uwXL29TY76Z2rM5mHXA,
	kernel-janitors-u79uwXL29TY76Z2rM5mHXA

Negate has higher precedence than bitwise AND so the condition is always
false.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
index b1942e2..18e329c 100644
--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -302,7 +302,7 @@ static efi_status_t setup_efi_pci(struct boot_params *params)
 		if (status != EFI_SUCCESS)
 			continue;
 
-		if (!attributes & EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM)
+		if (!(attributes & EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM))
 			continue;
 
 		if (!pci->romimage || !pci->romsize)

^ permalink raw reply related	[flat|nested] 4+ messages in thread

* Re: [patch] x86, efi: precedence error in setup_efi_pci()
       [not found] ` <20121207061649.GA18220-mgFCXtclrQlZLf2FXnZxJA@public.gmane.org>
@ 2012-12-08  3:05   ` H. Peter Anvin
       [not found]     ` <50C2AE91.9060800-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
  0 siblings, 1 reply; 4+ messages in thread
From: H. Peter Anvin @ 2012-12-08  3:05 UTC (permalink / raw)
  To: Dan Carpenter
  Cc: Matt Fleming, Matthew Garrett, Thomas Gleixner, Ingo Molnar,
	x86-DgEjT+Ai2ygdnm+yROfE0A, linux-efi-u79uwXL29TY76Z2rM5mHXA,
	kernel-janitors-u79uwXL29TY76Z2rM5mHXA

On 12/06/2012 10:16 PM, Dan Carpenter wrote:
> Negate has higher precedence than bitwise AND so the condition is always
> false.
>
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
>
> diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
> index b1942e2..18e329c 100644
> --- a/arch/x86/boot/compressed/eboot.c
> +++ b/arch/x86/boot/compressed/eboot.c
> @@ -302,7 +302,7 @@ static efi_status_t setup_efi_pci(struct boot_params *params)
>   		if (status != EFI_SUCCESS)
>   			continue;
>
> -		if (!attributes & EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM)
> +		if (!(attributes & EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM))
>   			continue;
>
>   		if (!pci->romimage || !pci->romsize)
>

What is the baseline for this patch?

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.


^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [patch] x86, efi: precedence error in setup_efi_pci()
       [not found]     ` <50C2AE91.9060800-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
@ 2012-12-10  8:44       ` Dan Carpenter
  2013-01-11 13:52         ` Matt Fleming
  0 siblings, 1 reply; 4+ messages in thread
From: Dan Carpenter @ 2012-12-10  8:44 UTC (permalink / raw)
  To: H. Peter Anvin
  Cc: Matt Fleming, Matthew Garrett, Thomas Gleixner, Ingo Molnar,
	x86-DgEjT+Ai2ygdnm+yROfE0A, linux-efi-u79uwXL29TY76Z2rM5mHXA,
	kernel-janitors-u79uwXL29TY76Z2rM5mHXA

On Fri, Dec 07, 2012 at 07:05:53PM -0800, H. Peter Anvin wrote:
> On 12/06/2012 10:16 PM, Dan Carpenter wrote:
> >Negate has higher precedence than bitwise AND so the condition is always
> >false.
> >
> >Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> >
> >diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
> >index b1942e2..18e329c 100644
> >--- a/arch/x86/boot/compressed/eboot.c
> >+++ b/arch/x86/boot/compressed/eboot.c
> >@@ -302,7 +302,7 @@ static efi_status_t setup_efi_pci(struct boot_params *params)
> >  		if (status != EFI_SUCCESS)
> >  			continue;
> >
> >-		if (!attributes & EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM)
> >+		if (!(attributes & EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM))
> >  			continue;
> >
> >  		if (!pci->romimage || !pci->romsize)
> >
> 
> What is the baseline for this patch?
> 

Sorry, this is a linux-next bug.  Introduced in:

commit dd5fc854de5fd37adfcef8a366cd21a55aa01d3d
Author: Matthew Garrett <mjg@redhat.com>
Date:   Wed Dec 5 14:33:26 2012 -0700

    EFI: Stash ROMs if they're not in the PCI BAR

regards,
dan carpenter


^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [patch] x86, efi: precedence error in setup_efi_pci()
  2012-12-10  8:44       ` Dan Carpenter
@ 2013-01-11 13:52         ` Matt Fleming
  0 siblings, 0 replies; 4+ messages in thread
From: Matt Fleming @ 2013-01-11 13:52 UTC (permalink / raw)
  To: Dan Carpenter
  Cc: H. Peter Anvin, Matthew Garrett, Thomas Gleixner, Ingo Molnar,
	x86-DgEjT+Ai2ygdnm+yROfE0A, linux-efi-u79uwXL29TY76Z2rM5mHXA,
	kernel-janitors-u79uwXL29TY76Z2rM5mHXA

On Mon, 2012-12-10 at 11:44 +0300, Dan Carpenter wrote:
> On Fri, Dec 07, 2012 at 07:05:53PM -0800, H. Peter Anvin wrote:
> > On 12/06/2012 10:16 PM, Dan Carpenter wrote:
> > >Negate has higher precedence than bitwise AND so the condition is always
> > >false.
> > >
> > >Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> > >
> > >diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
> > >index b1942e2..18e329c 100644
> > >--- a/arch/x86/boot/compressed/eboot.c
> > >+++ b/arch/x86/boot/compressed/eboot.c
> > >@@ -302,7 +302,7 @@ static efi_status_t setup_efi_pci(struct boot_params *params)
> > >  		if (status != EFI_SUCCESS)
> > >  			continue;
> > >
> > >-		if (!attributes & EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM)
> > >+		if (!(attributes & EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM))
> > >  			continue;
> > >
> > >  		if (!pci->romimage || !pci->romsize)
> > >
> > 
> > What is the baseline for this patch?
> > 
> 
> Sorry, this is a linux-next bug.  Introduced in:
> 
> commit dd5fc854de5fd37adfcef8a366cd21a55aa01d3d
> Author: Matthew Garrett <mjg@redhat.com>
> Date:   Wed Dec 5 14:33:26 2012 -0700
> 
>     EFI: Stash ROMs if they're not in the PCI BAR

Thanks Dan, I've picked this up.


^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2013-01-11 13:52 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2012-12-07  6:16 [patch] x86, efi: precedence error in setup_efi_pci() Dan Carpenter
     [not found] ` <20121207061649.GA18220-mgFCXtclrQlZLf2FXnZxJA@public.gmane.org>
2012-12-08  3:05   ` H. Peter Anvin
     [not found]     ` <50C2AE91.9060800-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
2012-12-10  8:44       ` Dan Carpenter
2013-01-11 13:52         ` Matt Fleming

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