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Date: Sun, 29 Sep 2019 18:30:16 +0200
From: Romain Perier <>
Cc: Kees Cook <>,
	Romain Perier <>
Subject: [PRE-REVIEW PATCH 04/16] net: liquidio: Prepare to use the new tasklet API

The future tasklet API will no longer allow to pass an arbitrary
"unsigned long" data parameter. The tasklet data structure will need to
be embedded into a data structure that will be retrieved from the tasklet
handler. Currently, the private driver data structure "struct
octeon_priv" is retrievable from the tasklet (by using container_of),
howerver it is not the case for the "struct octeon_device" (the field
"priv" is a pointer and cannot be used in container_of). This commit
adds a new field in the private data structure, so we can easily get a
pointer to the main device from the private context.

Signed-off-by: Romain Perier <>
 drivers/net/ethernet/cavium/liquidio/lio_main.c    | 1 +
 drivers/net/ethernet/cavium/liquidio/octeon_main.h | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/cavium/liquidio/lio_main.c b/drivers/net/ethernet/cavium/liquidio/lio_main.c
index 7f3b2e3b0868..283e1461257d 100644
--- a/drivers/net/ethernet/cavium/liquidio/lio_main.c
+++ b/drivers/net/ethernet/cavium/liquidio/lio_main.c
@@ -4326,6 +4326,7 @@ static int octeon_device_init(struct octeon_device *octeon_dev)
 	atomic_set(&octeon_dev->status, OCT_DEV_HOST_OK);
+	oct_priv->dev = octeon_dev;
 	return 0;
diff --git a/drivers/net/ethernet/cavium/liquidio/octeon_main.h b/drivers/net/ethernet/cavium/liquidio/octeon_main.h
index 073d0647b439..5b4cb725f60f 100644
--- a/drivers/net/ethernet/cavium/liquidio/octeon_main.h
+++ b/drivers/net/ethernet/cavium/liquidio/octeon_main.h
@@ -39,6 +39,7 @@ struct octeon_device_priv {
 	/** Tasklet structures for this device. */
 	struct tasklet_struct droq_tasklet;
 	unsigned long napi_mask;
+	struct octeon_device *dev;
 /** This structure is used by NIC driver to store information required

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