Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit f02b16be authored by Michael S. Tsirkin's avatar Michael S. Tsirkin Committed by Roland Dreier
Browse files

[IB] mthca: Round up number of slots in HCA context memory table 



When allocating a table for mem-free HCA context, don't assume that
obj_size * nobj is an even multiple of MTHCA_TABLE_CHUNK_SIZE.  In
particular, make sure we allocate at least one slot even if the table
is smaller than MTHCA_TABLE_CHUNK_SIZE.

Signed-off-by: default avatarMichael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
parent 63c47c28

drivers/infiniband/hw/mthca/mthca_memfree.c

+1 −1
Original line number Diff line number Diff line
@@ -290,7 +290,7 @@ struct mthca_icm_table *mthca_alloc_icm_table(struct mthca_dev *dev, 
	int i;

	u8 status;



	num_icm = obj_size * nobj / MTHCA_TABLE_CHUNK_SIZE;

	num_icm = (obj_size * nobj + MTHCA_TABLE_CHUNK_SIZE - 1) / MTHCA_TABLE_CHUNK_SIZE;



	table = kmalloc(sizeof *table + num_icm * sizeof *table->icm, GFP_KERNEL);

	if (!table)