From: Prasanna S. Panchamukhi <[email protected]>

This patch specifies the TX queue's minimum buffer room required to
accommodate one smallest SDIO payload.
Please refer the documentation in the code.

Signed-off-by: Prasanna S. Panchamukhi <[email protected]>
---
 drivers/net/wimax/i2400m/sdio.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/drivers/net/wimax/i2400m/sdio.c b/drivers/net/wimax/i2400m/sdio.c
index 7632f80..9bfc26e 100644
--- a/drivers/net/wimax/i2400m/sdio.c
+++ b/drivers/net/wimax/i2400m/sdio.c
@@ -483,6 +483,13 @@ int i2400ms_probe(struct sdio_func *func,
        sdio_set_drvdata(func, i2400ms);
 
        i2400m->bus_tx_block_size = I2400MS_BLK_SIZE;
+       /*
+        * Room required in the TX queue for SDIO message to accommodate
+        * a smallest payload while allocating header space is 224 bytes,
+        * which is the smallest message size(the block size 256 bytes)
+        * minus the smallest message header size(32 bytes).
+        */
+       i2400m->bus_tx_room_min = I2400MS_BLK_SIZE - I2400M_PL_ALIGN * 2;
        i2400m->bus_pl_size_max = I2400MS_PL_SIZE_MAX;
        i2400m->bus_setup = i2400ms_bus_setup;
        i2400m->bus_dev_start = i2400ms_bus_dev_start;
-- 
1.6.6.1

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