linux-kernel - [PATCH V2 4/7] Documentation/auxiliary_bus: Clarify __auxiliary_driver

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Date:   Wed,  1 Dec 2021 20:43:02 -0800
From:   ira.weiny@...el.com
To:     Jonathan Corbet <corbet@....net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Ira Weiny <ira.weiny@...el.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Dave Jiang <dave.jiang@...el.com>, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH V2 4/7] Documentation/auxiliary_bus: Clarify __auxiliary_driver_register

From: Ira Weiny <ira.weiny@...el.com>

__auxiliary_driver_register is not intended to be called directly unless
a custom name is required.  Add documentation for this fact.

Signed-off-by: Ira Weiny <ira.weiny@...el.com>
---
 drivers/base/auxiliary.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/base/auxiliary.c b/drivers/base/auxiliary.c
index 70a8dbcd31b7..7192f7d03a05 100644
--- a/drivers/base/auxiliary.c
+++ b/drivers/base/auxiliary.c
@@ -225,6 +225,11 @@ EXPORT_SYMBOL_GPL(auxiliary_find_device);
  * @auxdrv: auxiliary_driver structure
  * @owner: owning module/driver
  * @modname: KBUILD_MODNAME for parent driver
+ *
+ * The expectation is that users will call the "auxiliary_driver_register"
+ * macro so that the caller's KBUILD_MODNAME is automatically inserted for the
+ * modname parameter.  Only if a user requires a custom name would this version
+ * be called directly.
  */
 int __auxiliary_driver_register(struct auxiliary_driver *auxdrv,
 				struct module *owner, const char *modname)
-- 
2.31.1