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When using a >8bpp framebuffer, offb advertises truecolor, not directcolor, and doesn't touch the color map even if it has a corresponding access method for the real hardware. Thus it needs to set the pseudo-palette with all 3 components of the color, like other truecolor framebuffers, not with copies of the color index like a directcolor framebuffer would do. This went unnoticed for a long time because it's pretty hard to get offb to kick in with anything but 8bpp (old BootX under MacOS will do that and qemu does it). Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> CC: stable@kernel.org