linux-kernel - [PATCH v9 06/14] dmaengine: idxd: Add wq private data accessors

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Message-Id: <20230807203726.1682123-7-tom.zanussi@linux.intel.com>
Date:   Mon,  7 Aug 2023 15:37:18 -0500
From:   Tom Zanussi <tom.zanussi@...ux.intel.com>
To:     herbert@...dor.apana.org.au, davem@...emloft.net,
        fenghua.yu@...el.com, vkoul@...nel.org
Cc:     dave.jiang@...el.com, tony.luck@...el.com,
        wajdi.k.feghali@...el.com, james.guilford@...el.com,
        kanchana.p.sridhar@...el.com, vinodh.gopal@...el.com,
        giovanni.cabiddu@...el.com, linux-kernel@...r.kernel.org,
        linux-crypto@...r.kernel.org, dmaengine@...r.kernel.org
Subject: [PATCH v9 06/14] dmaengine: idxd: Add wq private data accessors

Add the accessors idxd_wq_set_private() and idxd_wq_get_private()
allowing users to set and retrieve a private void * associated with an
idxd_wq.

The private data is stored in the idxd_dev.conf_dev associated with
each idxd_wq.

Signed-off-by: Tom Zanussi <tom.zanussi@...ux.intel.com>
Reviewed-by: Fenghua Yu <fenghua.yu@...el.com>
Acked-by: Vinod Koul <vkoul@...nel.org>
---
 drivers/dma/idxd/idxd.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/dma/idxd/idxd.h b/drivers/dma/idxd/idxd.h
index f58df2cd9cf5..0c7974383c71 100644
--- a/drivers/dma/idxd/idxd.h
+++ b/drivers/dma/idxd/idxd.h
@@ -609,6 +609,16 @@ static inline int idxd_wq_refcount(struct idxd_wq *wq)
 	return wq->client_count;
 };
 
+static inline void idxd_wq_set_private(struct idxd_wq *wq, void *private)
+{
+	dev_set_drvdata(wq_confdev(wq), private);
+}
+
+static inline void *idxd_wq_get_private(struct idxd_wq *wq)
+{
+	return dev_get_drvdata(wq_confdev(wq));
+}
+
 /*
  * Intel IAA does not support batch processing.
  * The max batch size of device, max batch size of wq and
-- 
2.34.1