Patch "net/mlx4: Remove BUG_ON from ICM allocation routine" has been added to the 4.9-stable tree

This is a note to let you know that I've just added the patch titled

net/mlx4: Remove BUG_ON from ICM allocation routine

to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
net-mlx4-remove-bug_on-from-icm-allocation-routine.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Leon Romanovsky <[email protected]>
Date: Thu, 29 Dec 2016 18:37:11 +0200
Subject: net/mlx4: Remove BUG_ON from ICM allocation routine

From: Leon Romanovsky <[email protected]>

[ Upstream commit c1d5f8ff80ea84768f5fae1ca9d1abfbb5e6bbaa ]

This patch removes BUG_ON() macro from mlx4_alloc_icm_coherent() by checking DMA address alignment in advance and performing proper folding in case of error.

---
 drivers/net/ethernet/mellanox/mlx4/icm.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

@@ -118,8 +118,13 @@ static int mlx4_alloc_icm_coherent(struc
 	if (!buf)
 		return -ENOMEM;
 
+	if (offset_in_page(buf)) {
+		dma_free_coherent(dev, PAGE_SIZE << order,
+				  buf, sg_dma_address(mem));
+		return -ENOMEM;
+	}
+
 	sg_set_buf(mem, buf, PAGE_SIZE << order);
-	BUG_ON(mem->offset);
 	sg_dma_len(mem) = PAGE_SIZE << order;
 	return 0;
 }

Patches currently in stable-queue which might be from [email protected] are

queue-4.9/net-mlx4-remove-bug_on-from-icm-allocation-routine.patch