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firewire: ohci: copy_iso_headers(): make comment match the code

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The comment incorrectly talked about one little-endian quadlet, while
there are actually two.  Furthermore, the endianness of the remaining
headers depends on whatever protocol is used, so don't mention them.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
This commit is contained in:
Clemens Ladisch 2012-03-18 19:01:39 +01:00 committed by Stefan Richter
parent a7611e84bd
commit 32c507f7b7
1 changed files with 3 additions and 4 deletions
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7
drivers/firewire/ohci.c
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@ -2685,10 +2685,9 @@ static void copy_iso_headers(struct iso_context *ctx, void *p)
return;
/*
* The iso header is byteswapped to little endian by
* the controller, but the remaining header quadlets
* are big endian. We want to present all the headers
* as big endian, so we have to swap the first quadlet.
* The two iso header quadlets are byteswapped to little
* endian by the controller, but we want to present them
* as big endian for consistency with the bus endianness.
*/
if (ctx->base.header_size > 0)
*(u32 *) (ctx->header + i) = __swab32(*(u32 *) (p + 4));