From patchwork Fri Oct 4 21:43:24 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stephen Boyd X-Patchwork-Id: 11175299 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C5D7B1920 for ; Fri, 4 Oct 2019 21:43:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A4E52222C0 for ; Fri, 4 Oct 2019 21:43:39 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="MJ9Cw0wp" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730618AbfJDVnj (ORCPT ); Fri, 4 Oct 2019 17:43:39 -0400 Received: from mail-pg1-f196.google.com ([209.85.215.196]:39807 "EHLO mail-pg1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730325AbfJDVnj (ORCPT ); Fri, 4 Oct 2019 17:43:39 -0400 Received: by mail-pg1-f196.google.com with SMTP id e1so4484283pgj.6 for ; Fri, 04 Oct 2019 14:43:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=42znpoZzZjmG9yaRFQAzNvyi78UFWYqHsVeXsUAMBvM=; b=MJ9Cw0wp0Mh+XkAZ37PArMbq3cXXTtMOK8MgPDNXCkP0yXajJDHPB5xaYgU0YftimM IZ9Xr5C2yJosZi22FLfNZvyhDcgs9mFbobfjnE1WeFcBQ21xU74RMtcoRM+q4pMigeCm sJyAZ9okOsrTu89hmigncAMqTy1HVXQqwb/PM= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=42znpoZzZjmG9yaRFQAzNvyi78UFWYqHsVeXsUAMBvM=; b=BVRAlhcCBxdZEycowR3pUwIpOIq4S2/sOAC9L3s+/Uboi9VbZA37egzcSl1tTl8JaB 5m9Vg0M6/20tysfoGY3vZ20kM942PzKLHPbH612IWMTGJelZtLeRsmLTRmBmu5U0FHRx roEM4tahMj2b0Qk8Ccw/lfpwpZkLJPkAe9K4hlV7/wpmlicnVg+XeoOGRN/cU1L6MLoF FnA6wseXvAsARcnSvPxzaL+y/w7gvm+4VHO8AaO0njk/sHtI5TWsY7CD6qTQLLm2YngY 8uaJgISe0pfYdq+tzxsRyOscTjo+P80anwXaOnoncaoB3LMwsGY1YvdQxZZk4ZVfTU5v iMtg== X-Gm-Message-State: APjAAAU64EhAL7OznMGNW3db8KxCMq5tUsF4M11UavRyoblApzFja4oX r4nW6sF6NKt9N82OLXTUgnWgqQ== X-Google-Smtp-Source: APXvYqy1SG4O+l1PxmR4D+2nW3K5VMykMwaSO5DOFDZyCRsqYuEK129X6z1/RcOxIP4TfZnnBe0BMw== X-Received: by 2002:a17:90a:e017:: with SMTP id u23mr4003152pjy.55.1570225416541; Fri, 04 Oct 2019 14:43:36 -0700 (PDT) Received: from smtp.gmail.com ([2620:15c:202:1:fa53:7765:582b:82b9]) by smtp.gmail.com with ESMTPSA id a11sm10446799pfg.94.2019.10.04.14.43.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 04 Oct 2019 14:43:36 -0700 (PDT) From: Stephen Boyd To: linux-kernel@vger.kernel.org Cc: Alessandro Zummo , Alexandre Belloni , Alexandre Torgue , alsa-devel@alsa-project.org, Andrew Lunn , Arnd Bergmann , Dan Murphy , "David S. Miller" , Frank Rowand , Geert Uytterhoeven , Greg Kroah-Hartman , Gregory Clement , Grygorii Strashko , Guenter Roeck , Jacek Anaszewski , Jacopo Mondi , Jaroslav Kysela , Jason Cooper , Jean Delvare , Jiri Slaby , Liam Girdwood , linux-hwmon@vger.kernel.org, linux-leds@vger.kernel.org, linux-media@vger.kernel.org, linux-omap@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-rtc@vger.kernel.org, linux-serial@vger.kernel.org, linux-spi@vger.kernel.org, linux-usb@vger.kernel.org, Mark Brown , Mauro Carvalho Chehab , Maxime Coquelin , Paul Cercueil , Pavel Machek , Richard Leitner , Riku Voipio , Rob Herring , Sebastian Hesselbarth , Takashi Iwai Subject: [PATCH 00/10] Stop NULLifying match pointer in of_match_device() Date: Fri, 4 Oct 2019 14:43:24 -0700 Message-Id: <20191004214334.149976-1-swboyd@chromium.org> X-Mailer: git-send-email 2.23.0.581.g78d2f28ef7-goog MIME-Version: 1.0 Sender: linux-hwmon-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-hwmon@vger.kernel.org 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. Huge Cc list! Cc: Alessandro Zummo Cc: Alexandre Belloni Cc: Alexandre Torgue Cc: Cc: Andrew Lunn Cc: Arnd Bergmann Cc: Dan Murphy Cc: "David S. Miller" Cc: Frank Rowand Cc: Geert Uytterhoeven Cc: Greg Kroah-Hartman Cc: Gregory Clement Cc: Grygorii Strashko Cc: Guenter Roeck Cc: Jacek Anaszewski Cc: Jacopo Mondi Cc: Jaroslav Kysela Cc: Jason Cooper Cc: Jean Delvare Cc: Jiri Slaby Cc: Liam Girdwood Cc: Cc: Cc: Cc: Cc: Cc: Cc: Cc: Cc: Cc: Mark Brown Cc: Mauro Carvalho Chehab Cc: Maxime Coquelin Cc: Paul Cercueil Cc: Pavel Machek Cc: Richard Leitner Cc: Riku Voipio Cc: Rob Herring Cc: Sebastian Hesselbarth Cc: Takashi Iwai Stephen Boyd (10): leds: pca953x: Use of_device_get_match_data() media: renesas-ceu: Use of_device_get_match_data() rtc: armada38x: 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() ASoC: jz4740: Use of_device_get_match_data() spi: gpio: Look for a device node instead of match 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/leds/leds-pca9532.c | 14 +---- drivers/media/platform/renesas-ceu.c | 2 +- drivers/net/ethernet/ti/davinci_mdio.c | 12 ++--- drivers/rtc/rtc-armada38x.c | 10 ++-- drivers/spi/spi-gpio.c | 5 +- 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 +- sound/soc/jz4740/jz4740-i2s.c | 5 +- 11 files changed, 55 insertions(+), 84 deletions(-) base-commit: 54ecb8f7028c5eb3d740bb82b0f1d90f2df63c5c