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authorIngo Molnar <mingo@elte.hu>2009-03-30 23:53:32 +0200
committerIngo Molnar <mingo@elte.hu>2009-03-30 23:53:32 +0200
commit65fb0d23fcddd8697c871047b700c78817bdaa43 (patch)
tree119e6e5f276622c4c862f6c9b6d795264ba1603a /drivers/block/cciss.c
parent8c083f081d0014057901c68a0a3e0f8ca7ac8d23 (diff)
parentdfbbe89e197a77f2c8046a51c74e33e35f878080 (diff)
Merge branch 'linus' into cpumask-for-linus
Conflicts: arch/x86/kernel/cpu/common.c
Diffstat (limited to 'drivers/block/cciss.c')
-rw-r--r--drivers/block/cciss.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 4f9b6d79201..5d0e135824f 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -3898,6 +3898,13 @@ static struct pci_driver cciss_pci_driver = {
*/
static int __init cciss_init(void)
{
+ /*
+ * The hardware requires that commands are aligned on a 64-bit
+ * boundary. Given that we use pci_alloc_consistent() to allocate an
+ * array of them, the size must be a multiple of 8 bytes.
+ */
+ BUILD_BUG_ON(sizeof(CommandList_struct) % 8);
+
printk(KERN_INFO DRIVER_NAME "\n");
/* Register for our PCI devices */