[2.6 patch] drivers/block/nbd.c: don't defer compile error to runtime (fwd)

[Adrian Bunk <bunk@stusta.de>]

If we can detect a problem at compile time, the compilation should fail.


Signed-off-by: Adrian Bunk <bunk@stusta.de>

---

This patch was already sent on:
- 20 Feb 2006
- 3 Sep 2005

--- linux-2.6.13-mm1-full/drivers/block/nbd.c.old	2005-09-02 23:48:27.000000000 +0200
+++ linux-2.6.13-mm1-full/drivers/block/nbd.c	2005-09-03 01:08:04.000000000 +0200
@@ -643,10 +643,7 @@
 	int err = -ENOMEM;
 	int i;
 
-	if (sizeof(struct nbd_request) != 28) {
-		printk(KERN_CRIT "nbd: sizeof nbd_request needs to be 28 in order to work!\n" );
-		return -EIO;
-	}
+	BUILD_BUG_ON(sizeof(struct nbd_request) != 28);
 
 	if (nbds_max > MAX_NBD) {
 		printk(KERN_CRIT "nbd: cannot allocate more than %u nbds; %u requested.\n", MAX_NBD,

-
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