[PATCH 01/17] drm: Remove flag FBINFO_DEFAULT from fbdev emulation

Thomas Zimmermann
2023-07-10T13:01:28Z

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 occurences of FBINFO_DEFAULT, the token can be removed.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: "Pan, Xinhui" <Xinhui.Pan@amd.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 8217f1ddc007..bc5fdb1da6a3 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 98ae703848a0..8a5600b33e10 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 955cbe9f05a7..b09a3ef770d4 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 ab9c1abbac97..c632ca03032b 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