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Message-ID: <VI1P193MB0752F71CC14FFC9B9A22A6E399FDA@VI1P193MB0752.EURP193.PROD.OUTLOOK.COM>
Date:   Sun, 24 Sep 2023 18:43:33 +0100
From:   Juntong Deng <juntong.deng@...look.com>
To:     maarten.lankhorst@...ux.intel.com, mripard@...nel.org,
        tzimmermann@...e.de, airlied@...il.com, daniel@...ll.ch,
        zackr@...are.com, linux-graphics-maintainer@...are.com
Cc:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        linux-kernel-mentees@...ts.linuxfoundation.org
Subject: [PATCH v2] drm: Rename drm_ioctl_flags() to eliminate duplicate declaration warning

There are 'enum drm_ioctl_flags' and 'bool drm_ioctl_flags(...)' with the
same name, which is not a problem in C, but it can lead to
'WARNING: Duplicate C declaration' when generating documentation.

According to the purpose of the function, rename 'drm_ioctl_flags(...)' to
'drm_ioctl_flags_check(...)' to eliminate the warning.

Signed-off-by: Juntong Deng <juntong.deng@...look.com>
---
 drivers/gpu/drm/drm_ioctl.c         | 6 +++---
 drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 2 +-
 include/drm/drm_ioctl.h             | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
index f03ffbacfe9b..feaa58ca36f7 100644
--- a/drivers/gpu/drm/drm_ioctl.c
+++ b/drivers/gpu/drm/drm_ioctl.c
@@ -911,7 +911,7 @@ long drm_ioctl(struct file *filp,
 EXPORT_SYMBOL(drm_ioctl);
 
 /**
- * drm_ioctl_flags - Check for core ioctl and return ioctl permission flags
+ * drm_ioctl_flags_check - Check for core ioctl and return ioctl permission flags
  * @nr: ioctl number
  * @flags: where to return the ioctl permission flags
  *
@@ -922,7 +922,7 @@ EXPORT_SYMBOL(drm_ioctl);
  * Returns:
  * True if the @nr corresponds to a DRM core ioctl number, false otherwise.
  */
-bool drm_ioctl_flags(unsigned int nr, unsigned int *flags)
+bool drm_ioctl_flags_check(unsigned int nr, unsigned int *flags)
 {
 	if (nr >= DRM_COMMAND_BASE && nr < DRM_COMMAND_END)
 		return false;
@@ -934,4 +934,4 @@ bool drm_ioctl_flags(unsigned int nr, unsigned int *flags)
 	*flags = drm_ioctls[nr].flags;
 	return true;
 }
-EXPORT_SYMBOL(drm_ioctl_flags);
+EXPORT_SYMBOL(drm_ioctl_flags_check);
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index 8b24ecf60e3e..2aafc7a62bee 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -1287,7 +1287,7 @@ static long vmw_generic_ioctl(struct file *filp, unsigned int cmd,
 			goto out_io_encoding;
 
 		flags = ioctl->flags;
-	} else if (!drm_ioctl_flags(nr, &flags))
+	} else if (!drm_ioctl_flags_check(nr, &flags))
 		return -EINVAL;
 
 	return ioctl_func(filp, cmd, arg);
diff --git a/include/drm/drm_ioctl.h b/include/drm/drm_ioctl.h
index 6ed61c371f6c..465c5de2d5cd 100644
--- a/include/drm/drm_ioctl.h
+++ b/include/drm/drm_ioctl.h
@@ -175,7 +175,7 @@ long drm_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
 /* Let drm_compat_ioctl be assigned to .compat_ioctl unconditionally */
 #define drm_compat_ioctl NULL
 #endif
-bool drm_ioctl_flags(unsigned int nr, unsigned int *flags);
+bool drm_ioctl_flags_check(unsigned int nr, unsigned int *flags);
 
 int drm_noop(struct drm_device *dev, void *data,
 	     struct drm_file *file_priv);
-- 
2.39.2

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