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From: Arnd Bergmann <arnd@kernel.org>
To: linux-kernel@vger.kernel.org, Liviu Dudau <liviu.dudau@arm.com>,
	Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
	Maxime Ripard <mripard@kernel.org>,
	Thomas Zimmermann <tzimmermann@suse.de>,
	David Airlie <airlied@gmail.com>, Daniel Vetter <daniel@ffwll.ch>,
	"James Qian Wang (Arm Technology China)"
	<james.qian.wang@arm.com>
Cc: Arnd Bergmann <arnd@arndb.de>, Rob Herring <robh@kernel.org>,
	dri-devel@lists.freedesktop.org
Subject: [PATCH 22/34] drm/komeda: don't warn for unused debugfs files
Date: Wed,  3 Apr 2024 10:06:40 +0200	[thread overview]
Message-ID: <20240403080702.3509288-23-arnd@kernel.org> (raw)
In-Reply-To: <20240403080702.3509288-1-arnd@kernel.org>

From: Arnd Bergmann <arnd@arndb.de>

With debugfs disabled, the komeda_register debugfs file is unused:

drivers/gpu/drm/arm/display/komeda/komeda_dev.c:44:1: error: unused variable 'komeda_register_fops' [-Werror,-Wunused-const-variable]
DEFINE_SHOW_ATTRIBUTE(komeda_register);

The komeda_debugfs_init() function already has a call to debugfs_initialized()
that ends up eliminating the file as dead code, so just drop the #ifdef
to get rid of the warning.

Fixes: 576832681891 ("arm/komeda: Compile komeda_debugfs_init() only if CONFIG_DEBUG_FS is enabled")
Fixes: 7d3cfb70a604 ("drm/komeda: Add debugfs node "register" for register dump")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/gpu/drm/arm/display/komeda/komeda_dev.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_dev.c b/drivers/gpu/drm/arm/display/komeda/komeda_dev.c
index 14ee79becacb..5ba62e637a61 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_dev.c
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_dev.c
@@ -12,10 +12,8 @@
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/dma-mapping.h>
-#ifdef CONFIG_DEBUG_FS
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
-#endif
 
 #include <drm/drm_print.h>
 
@@ -43,7 +41,6 @@ static int komeda_register_show(struct seq_file *sf, void *x)
 
 DEFINE_SHOW_ATTRIBUTE(komeda_register);
 
-#ifdef CONFIG_DEBUG_FS
 static void komeda_debugfs_init(struct komeda_dev *mdev)
 {
 	if (!debugfs_initialized())
@@ -55,7 +52,6 @@ static void komeda_debugfs_init(struct komeda_dev *mdev)
 	debugfs_create_x16("err_verbosity", 0664, mdev->debugfs_root,
 			   &mdev->err_verbosity);
 }
-#endif
 
 static ssize_t
 core_id_show(struct device *dev, struct device_attribute *attr, char *buf)
@@ -265,9 +261,7 @@ struct komeda_dev *komeda_dev_create(struct device *dev)
 
 	mdev->err_verbosity = KOMEDA_DEV_PRINT_ERR_EVENTS;
 
-#ifdef CONFIG_DEBUG_FS
 	komeda_debugfs_init(mdev);
-#endif
 
 	return mdev;
 
@@ -286,9 +280,7 @@ void komeda_dev_destroy(struct komeda_dev *mdev)
 
 	sysfs_remove_group(&dev->kobj, &komeda_sysfs_attr_group);
 
-#ifdef CONFIG_DEBUG_FS
 	debugfs_remove_recursive(mdev->debugfs_root);
-#endif
 
 	if (mdev->aclk)
 		clk_prepare_enable(mdev->aclk);
-- 
2.39.2


  parent reply	other threads:[~2024-04-03  8:11 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-03  8:06 [PATCH 00/34] address all -Wunused-const warnings Arnd Bergmann
2024-04-03  8:06 ` [PATCH 13/34] sisfb: hide unused variables Arnd Bergmann
2024-04-03 12:39   ` Helge Deller
2024-04-03  8:06 ` Arnd Bergmann [this message]
2024-04-10  8:02 ` (subset) [PATCH 00/34] address all -Wunused-const warnings Sebastian Reichel
2024-04-22  8:16 ` Michael Ellerman
2025-01-27 13:24 ` Andy Shevchenko

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