linux-kernel - [PATCH v2 01/18] drm: Remove flag FBINFO

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Date:   Thu, 13 Jul 2023 14:58:21 +0200
From:   Thomas Zimmermann <tzimmermann@...e.de>
To:     deller@....de, javierm@...hat.com
Cc:     linux-sh@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, amd-gfx@...ts.freedesktop.org,
        linux-input@...r.kernel.org, linux-media@...r.kernel.org,
        linux-fbdev@...r.kernel.org, linux-staging@...ts.linux.dev,
        linux-arm-kernel@...ts.infradead.org,
        linux-geode@...ts.infradead.org, linux-nvidia@...ts.surfsouth.com,
        linux-hyperv@...r.kernel.org, linux-omap@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org, kvm@...r.kernel.org,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Sam Ravnborg <sam@...nborg.org>,
        Patrik Jakobsson <patrik.r.jakobsson@...il.com>,
        Alex Deucher <alexander.deucher@....com>,
        Christian König <christian.koenig@....com>,
        "Pan, Xinhui" <Xinhui.Pan@....com>
Subject: [PATCH v2 01/18] drm: Remove flag FBINFO_DEFAULT from fbdev emulation

The flag FBINFO_DEFAULT is 0 and has no effect, as struct fbinfo.flags
has been allocated to zero by framebuffer_alloc(). So do not set it.

Flags should signal differences from the default values. After cleaning
up all occurrences of FBINFO_DEFAULT, the token will be removed.

v2:
	* fix commit message (Miguel)

Signed-off-by: Thomas Zimmermann <tzimmermann@...e.de>
Acked-by: Sam Ravnborg <sam@...nborg.org>
Cc: Patrik Jakobsson <patrik.r.jakobsson@...il.com>
Cc: Alex Deucher <alexander.deucher@....com>
Cc: "Christian König" <christian.koenig@....com>
Cc: "Pan, Xinhui" <Xinhui.Pan@....com>
---
 drivers/gpu/drm/drm_fbdev_dma.c       | 1 -
 drivers/gpu/drm/drm_fbdev_generic.c   | 1 -
 drivers/gpu/drm/gma500/fbdev.c        | 2 +-
 drivers/gpu/drm/radeon/radeon_fbdev.c | 2 +-
 4 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/drm_fbdev_dma.c b/drivers/gpu/drm/drm_fbdev_dma.c
index f9b1f7cd31b7..ee7c265b0585 100644
--- a/drivers/gpu/drm/drm_fbdev_dma.c
+++ b/drivers/gpu/drm/drm_fbdev_dma.c
@@ -123,7 +123,6 @@ static int drm_fbdev_dma_helper_fb_probe(struct drm_fb_helper *fb_helper,
 	drm_fb_helper_fill_info(info, fb_helper, sizes);
 
 	info->fbops = &drm_fbdev_dma_fb_ops;
-	info->flags = FBINFO_DEFAULT;
 
 	/* screen */
 	info->flags |= FBINFO_VIRTFB; /* system memory */
diff --git a/drivers/gpu/drm/drm_fbdev_generic.c b/drivers/gpu/drm/drm_fbdev_generic.c
index b9343fb6cf13..a0ea042b1526 100644
--- a/drivers/gpu/drm/drm_fbdev_generic.c
+++ b/drivers/gpu/drm/drm_fbdev_generic.c
@@ -109,7 +109,6 @@ static int drm_fbdev_generic_helper_fb_probe(struct drm_fb_helper *fb_helper,
 	drm_fb_helper_fill_info(info, fb_helper, sizes);
 
 	info->fbops = &drm_fbdev_generic_fb_ops;
-	info->flags = FBINFO_DEFAULT;
 
 	/* screen */
 	info->flags |= FBINFO_VIRTFB | FBINFO_READS_FAST;
diff --git a/drivers/gpu/drm/gma500/fbdev.c b/drivers/gpu/drm/gma500/fbdev.c
index 054426549fc6..be8f5fbd5260 100644
--- a/drivers/gpu/drm/gma500/fbdev.c
+++ b/drivers/gpu/drm/gma500/fbdev.c
@@ -215,7 +215,7 @@ static int psb_fbdev_fb_probe(struct drm_fb_helper *fb_helper,
 	}
 
 	info->fbops = &psb_fbdev_fb_ops;
-	info->flags = FBINFO_DEFAULT;
+
 	/* Accessed stolen memory directly */
 	info->screen_base = dev_priv->vram_addr + backing->offset;
 	info->screen_size = size;
diff --git a/drivers/gpu/drm/radeon/radeon_fbdev.c b/drivers/gpu/drm/radeon/radeon_fbdev.c
index f941e2e7cae6..68c06ac9acce 100644
--- a/drivers/gpu/drm/radeon/radeon_fbdev.c
+++ b/drivers/gpu/drm/radeon/radeon_fbdev.c
@@ -253,7 +253,7 @@ static int radeon_fbdev_fb_helper_fb_probe(struct drm_fb_helper *fb_helper,
 	}
 
 	info->fbops = &radeon_fbdev_fb_ops;
-	info->flags = FBINFO_DEFAULT;
+
 	/* radeon resume is fragile and needs a vt switch to help it along */
 	info->skip_vt_switch = false;
 
-- 
2.41.0