lkml.org 
[lkml]   [2021]   [Jan]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[PATCH v2 0/6] Stop NULLifying match pointer in of_match_device()
Date
(This is a continuation of this series[1] per Rob's request. I've picked
up the acks, etc. with b4 and compile tested the patches along with an
arm64 allmodconfig build. Presumably Rob will pick these up directly.)

of_match_device() uses of_match_ptr() to make the match table argument
NULL via the pre-processor when CONFIG_OF=n. This makes life harder for
compilers who think that match tables are never used and warn about
unused variables when CONFIG_OF=n. This series changes various callers
to use of_device_get_match_data() instead, which doesn't have this
problem, and removes the of_match_ptr() usage from of_match_device() so
that the compiler can stop complaining about unused variables. It will
do dead code elimination instead and remove the match table if it isn't
actually used.

[1] https://lore.kernel.org/r/20191004214334.149976-1-swboyd@chromium.org

Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Jacopo Mondi <jacopo@jmondi.org>
Cc: Jean Delvare <jdelvare@suse.com>
Cc: Jiri Slaby <jslaby@suse.com>
Cc: <linux-hwmon@vger.kernel.org>
Cc: <linux-kernel@vger.kernel.org>,
Cc: <linux-media@vger.kernel.org>
Cc: <linux-omap@vger.kernel.org>
Cc: <linux-renesas-soc@vger.kernel.org>
Cc: <linux-serial@vger.kernel.org>
Cc: <linux-usb@vger.kernel.org>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Richard Leitner <richard.leitner@skidata.com>
Cc: Rob Herring <robh+dt@kernel.org>

Stephen Boyd (6):
media: renesas-ceu: Use of_device_get_match_data()
drivers: net: davinci_mdio: Use of_device_get_match_data()
serial: stm32: Use of_device_get_match_data()
usb: usb251xb: Use of_device_get_match_data()
hwmon: (lm70) Avoid undefined reference to match table
of/device: Don't NULLify match table in of_match_device() with
CONFIG_OF=n

drivers/hwmon/lm70.c | 2 +-
drivers/media/platform/renesas-ceu.c | 2 +-
drivers/net/ethernet/ti/davinci_mdio.c | 12 ++---
drivers/tty/serial/stm32-usart.c | 71 ++++++++++++--------------
drivers/tty/serial/stm32-usart.h | 2 +-
drivers/usb/misc/usb251xb.c | 12 ++---
include/linux/of_device.h | 4 +-
7 files changed, 47 insertions(+), 58 deletions(-)


base-commit: 19c329f6808995b142b3966301f217c831e7cf31
--
https://chromeos.dev

\
 
 \ /
  Last update: 2021-01-23 04:46    [W:0.078 / U:2.536 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site