[PATCH 1/2] lguest update for mm: simplify boot_params

[Rusty Russell <rusty@rustcorp.com.au>]

Andrew patched up lguest after the boot parameters became a proper
structure, but in fact it can be considerably neatened.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

diff -r ffe7ce731118 drivers/lguest/lguest.c
--- a/drivers/lguest/lguest.c	Fri May 18 10:18:56 2007 +1000
+++ b/drivers/lguest/lguest.c	Fri May 18 11:04:19 2007 +1000
@@ -444,8 +444,7 @@ __init void lguest_init(void *boot)
 {
 	/* Copy boot parameters first. */
 	memcpy(&boot_params, boot, PARAM_SIZE);
-	memcpy(boot_command_line,
-	       __va(*(unsigned long *)((void *)&boot_params + NEW_CL_POINTER)),
+	memcpy(boot_command_line, __va(boot_params.hdr.cmd_line_ptr),
 	       COMMAND_LINE_SIZE);
 
 	paravirt_ops.name = "lguest";


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