diff mbox series

[v3] usb: Restore the reference to ch9.h

Message ID 20210425131343.2525419-1-festevam@gmail.com (mailing list archive)
State Superseded
Headers show
Series [v3] usb: Restore the reference to ch9.h | expand

Commit Message

Fabio Estevam April 25, 2021, 1:13 p.m. UTC
Keep the textual reference to ch9.h as it was prior to commit
caa93d9bd2d7 ("usb: Fix up movement of USB core kerneldoc location").

As linux/usb/ch9.h does not contain comments anymore, explain
that drivers/usb/common/common.c includes such header and provides
declarations of a few utilities routines for manipulating the data types
from ch9.h. Also mention that drivers/usb/common/debug.c contains
some functions for creating debug output.

Fixes: caa93d9bd2d7 ("usb: Fix up movement of USB core kerneldoc location")
Reported-by: Alan Stern <stern@rowland.harvard.edu>
Suggested-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Fabio Estevam <festevam@gmail.com>
---
Changes since v2:
- Refer to include/uapi/linux/usb/ch9.h initially (Alan)

 Documentation/driver-api/usb/usb.rst | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

Comments

Alan Stern April 25, 2021, 2:55 p.m. UTC | #1
On Sun, Apr 25, 2021 at 10:13:43AM -0300, Fabio Estevam wrote:
> Keep the textual reference to ch9.h as it was prior to commit
> caa93d9bd2d7 ("usb: Fix up movement of USB core kerneldoc location").
> 
> As linux/usb/ch9.h does not contain comments anymore, explain
> that drivers/usb/common/common.c includes such header and provides
> declarations of a few utilities routines for manipulating the data types
> from ch9.h. Also mention that drivers/usb/common/debug.c contains
> some functions for creating debug output.
> 
> Fixes: caa93d9bd2d7 ("usb: Fix up movement of USB core kerneldoc location")
> Reported-by: Alan Stern <stern@rowland.harvard.edu>
> Suggested-by: Alan Stern <stern@rowland.harvard.edu>
> Signed-off-by: Fabio Estevam <festevam@gmail.com>
> ---
> Changes since v2:
> - Refer to include/uapi/linux/usb/ch9.h initially (Alan)
> 
>  Documentation/driver-api/usb/usb.rst | 15 +++++++++------
>  1 file changed, 9 insertions(+), 6 deletions(-)
> 
> diff --git a/Documentation/driver-api/usb/usb.rst b/Documentation/driver-api/usb/usb.rst
> index 543e70434da2..e97a46461884 100644
> --- a/Documentation/driver-api/usb/usb.rst
> +++ b/Documentation/driver-api/usb/usb.rst
> @@ -109,16 +109,19 @@ well as to make sure they aren't relying on some HCD-specific behavior.
>  USB-Standard Types
>  ==================
>  
> -In ``drivers/usb/common/common.c`` and ``drivers/usb/common/debug.c`` you
> -will find the USB data types defined in chapter 9 of the USB specification.
> -These data types are used throughout USB, and in APIs including this host
> -side API, gadget APIs, usb character devices and debugfs interfaces.
> +In ``include/uapi/linux/usb/ch9.h`` you will find the USB data types defined
> +in chapter 9 of the USB specification. These data types are used throughout
> +USB, and in APIs including this host side API, gadget APIs, usb character
> +devices and debugfs interfaces. That file is itself included by
> +``<linux/usb/ch9.h>``, which also contains declarations of a few utility

Should this be ``include/linux/usb/ch9.h``, with the "include/" and 
without the "<...>"?  We seem to be inconsistent in the way we refer to 
include files.  This was true of the original document as well.

> +routines for manipulating these data types; the implementations are
> +in ``drivers/usb/common/common.c``.
>  
>  .. kernel-doc:: drivers/usb/common/common.c
>     :export:
>  
> -.. kernel-doc:: drivers/usb/common/debug.c
> -   :export:
> +In addition, some functions useful for creating debugging output are
> +defined in ``drivers/usb/common/debug.c``.
>  
>  Host-Side Data Types and Macros
>  ===============================

Better now.

Acked-by: Alan Stern <stern@rowland.harvard.edu>

Alan Stern
diff mbox series

Patch

diff --git a/Documentation/driver-api/usb/usb.rst b/Documentation/driver-api/usb/usb.rst
index 543e70434da2..e97a46461884 100644
--- a/Documentation/driver-api/usb/usb.rst
+++ b/Documentation/driver-api/usb/usb.rst
@@ -109,16 +109,19 @@  well as to make sure they aren't relying on some HCD-specific behavior.
 USB-Standard Types
 ==================
 
-In ``drivers/usb/common/common.c`` and ``drivers/usb/common/debug.c`` you
-will find the USB data types defined in chapter 9 of the USB specification.
-These data types are used throughout USB, and in APIs including this host
-side API, gadget APIs, usb character devices and debugfs interfaces.
+In ``include/uapi/linux/usb/ch9.h`` you will find the USB data types defined
+in chapter 9 of the USB specification. These data types are used throughout
+USB, and in APIs including this host side API, gadget APIs, usb character
+devices and debugfs interfaces. That file is itself included by
+``<linux/usb/ch9.h>``, which also contains declarations of a few utility
+routines for manipulating these data types; the implementations are
+in ``drivers/usb/common/common.c``.
 
 .. kernel-doc:: drivers/usb/common/common.c
    :export:
 
-.. kernel-doc:: drivers/usb/common/debug.c
-   :export:
+In addition, some functions useful for creating debugging output are
+defined in ``drivers/usb/common/debug.c``.
 
 Host-Side Data Types and Macros
 ===============================