This is a note to let you know that I've just added the patch titled fbdev: wm8505fb: select CONFIG_FB_IOMEM_FOPS to the 6.11-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: fbdev-wm8505fb-select-config_fb_iomem_fops.patch and it can be found in the queue-6.11 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 96f1d50b7699d03e5e5cc356d0b171ebd9fee6cc Author: Arnd Bergmann <arnd@xxxxxxxx> Date: Fri Oct 18 15:12:49 2024 +0000 fbdev: wm8505fb: select CONFIG_FB_IOMEM_FOPS [ Upstream commit 51521d2e2c35959cc70a62ccddf694965e29c950 ] The fb_io_mmap() function is used in the file operations but not enabled in all configurations unless FB_IOMEM_FOPS gets selected: ld.lld-20: error: undefined symbol: fb_io_mmap referenced by wm8505fb.c drivers/video/fbdev/wm8505fb.o:(wm8505fb_ops) in archive vmlinux.a Fixes: 11754a504608 ("fbdev/wm8505fb: Initialize fb_ops to fbdev I/O-memory helpers") Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> Reviewed-by: Thomas Zimmermann <tzimmermann@xxxxxxx> Signed-off-by: Helge Deller <deller@xxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig index ea36c6956bf36..1af0ccf7967ab 100644 --- a/drivers/video/fbdev/Kconfig +++ b/drivers/video/fbdev/Kconfig @@ -1374,6 +1374,7 @@ config FB_VT8500 config FB_WM8505 bool "Wondermedia WM8xxx-series frame buffer support" depends on (FB = y) && HAS_IOMEM && (ARCH_VT8500 || COMPILE_TEST) + select FB_IOMEM_FOPS select FB_SYS_FILLRECT if (!FB_WMT_GE_ROPS) select FB_SYS_COPYAREA if (!FB_WMT_GE_ROPS) select FB_SYS_IMAGEBLIT