mirror of https://gitee.com/openkylin/linux.git
48ba813701
The drm_file->is_master field is redundant as it's equivalent to:
drm_file->master && drm_file->master == drm_file->minor->master
1) "=>"
Whenever we set drm_file->is_master, we also set:
drm_file->minor->master = drm_file->master;
Whenever we clear drm_file->is_master, we also call:
drm_master_put(&drm_file->minor->master);
which implicitly clears it to NULL.
2) "<="
minor->master cannot be set if it is non-NULL. Therefore, it stays as
is unless a file drops it.
If minor->master is NULL, it is only set by places that also adjust
drm_file->is_master.
Therefore, we can safely drop is_master and replace it by an inline helper
that matches:
drm_file->master && drm_file->master == drm_file->minor->master
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
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| .. | ||
| Kconfig | ||
| Makefile | ||
| svga3d_reg.h | ||
| svga3d_surfacedefs.h | ||
| svga_escape.h | ||
| svga_overlay.h | ||
| svga_reg.h | ||
| svga_types.h | ||
| vmwgfx_buffer.c | ||
| vmwgfx_cmdbuf_res.c | ||
| vmwgfx_context.c | ||
| vmwgfx_dmabuf.c | ||
| vmwgfx_drv.c | ||
| vmwgfx_drv.h | ||
| vmwgfx_execbuf.c | ||
| vmwgfx_fb.c | ||
| vmwgfx_fence.c | ||
| vmwgfx_fence.h | ||
| vmwgfx_fifo.c | ||
| vmwgfx_gmr.c | ||
| vmwgfx_gmrid_manager.c | ||
| vmwgfx_ioctl.c | ||
| vmwgfx_irq.c | ||
| vmwgfx_kms.c | ||
| vmwgfx_kms.h | ||
| vmwgfx_ldu.c | ||
| vmwgfx_marker.c | ||
| vmwgfx_mob.c | ||
| vmwgfx_overlay.c | ||
| vmwgfx_prime.c | ||
| vmwgfx_reg.h | ||
| vmwgfx_resource.c | ||
| vmwgfx_resource_priv.h | ||
| vmwgfx_scrn.c | ||
| vmwgfx_shader.c | ||
| vmwgfx_surface.c | ||
| vmwgfx_ttm_glue.c | ||