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From: Paul Walmsley <paul.walmsley@sifive.com>
To: Jonathan Corbet <corbet@lwn.net>
Cc: "aou@eecs.berkeley.edu" <aou@eecs.berkeley.edu>,
	"linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>,
	"palmer@sifive.com" <palmer@sifive.com>,
	Chester Lin <clin@suse.com>,
	"atish.patra@wdc.com" <atish.patra@wdc.com>,
	"linux-riscv@lists.infradead.org"
	<linux-riscv@lists.infradead.org>
Subject: Re: [PATCH] riscv-docs: correct the sequence of the magic number 2 since it's little endian
Date: Tue, 1 Oct 2019 11:35:11 -0700 (PDT)	[thread overview]
Message-ID: <alpine.DEB.2.21.9999.1910011132280.3732@viisi.sifive.com> (raw)
In-Reply-To: <20191001072212.21d55899@lwn.net>

Hi Jon,

On Tue, 1 Oct 2019, Jonathan Corbet wrote:

> On Mon, 16 Sep 2019 13:01:40 +0000
> Chester Lin <clin@suse.com> wrote:
> 
> > Correct the sequence of the magic number 2 since it's little endian.
> > 
> > Signed-off-by: Chester Lin <clin@suse.com>
> > ---
> >  Documentation/riscv/boot-image-header.txt | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> So I'm slowly digging my way through my docs folder, sorry for the delay.
> 
> > diff --git a/Documentation/riscv/boot-image-header.txt b/Documentation/riscv/boot-image-header.txt
> > index 14b1492f689b..f388805aa5c3 100644
> > --- a/Documentation/riscv/boot-image-header.txt
> > +++ b/Documentation/riscv/boot-image-header.txt
> > @@ -18,7 +18,7 @@ The following 64-byte header is present in decompressed Linux kernel image.
> >  	u32 res1  = 0;		  /* Reserved */
> >  	u64 res2  = 0;    	  /* Reserved */
> >  	u64 magic = 0x5643534952; /* Magic number, little endian, "RISCV" */
> > -	u32 magic2 = 0x56534905;  /* Magic number 2, little endian, "RSC\x05" */
> > +	u32 magic2 = 0x05435352;  /* Magic number 2, little endian, "RSC\x05" */
> 
> That's doing more than just reordering the bytes.  Was the original
> completely wrong?  If so, the changelog should probably reflect that.  Or
> else what am I missing?

This was simply due to idiocy on my part, due to a very last-minute patch 
submission, where I missed that the original documented magic number was 
already in little-endian format.  The updated number from Chester is 
correct.

So,

Reviewed-by: Paul Walmsley <paul.walmsley@sifive.com>


- Paul

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  reply	other threads:[~2019-10-01 18:35 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-16 13:01 [PATCH] riscv-docs: correct the sequence of the magic number 2 since it's little endian Chester Lin
2019-10-01 13:22 ` Jonathan Corbet
2019-10-01 18:35   ` Paul Walmsley [this message]
2019-10-03 16:52     ` Jonathan Corbet

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