Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-09-24 08:53:09 +00:00
Code Issues Packages Projects Releases Wiki Activity

firewire: Byteswap iso header so all headers are presented as be32.

Browse Source 
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
This commit is contained in:
Kristian Høgsberg 2007-04-10 18:11:16 -04:00 committed by Stefan Richter
parent 8a2f7d932f
commit 15536221d1
1 changed files with 7 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/firewire/fw-ohci.c
View File

@ -1257,7 +1257,13 @@ static int handle_ir_dualbuffer_packet(struct context *context,
p = db + 1;
end = p + header_length;
while (p < end && i + ctx->base.header_size <= PAGE_SIZE) {
memcpy(ctx->header + i, p + 4, ctx->base.header_size);
/* 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. */
*(u32 *) (ctx->header + i) = __swab32(*(u32 *) (p + 4));
memcpy(ctx->header + i + 4, p + 8, ctx->base.header_size - 4);
i += ctx->base.header_size;
p += ctx->base.header_size + 4;
}