Initialize the instance of struct fb_ops with fbdev initializer macros for framebuffers in I/O address space. Set the read/write, draw and mmap callbacks to the correct implementation and avoid implicit defaults. Also select the necessary I/O helpers in Kconfig.
Fbdev drivers sometimes rely on the callbacks being NULL for a default implementation to be invoked; hence requiring the I/O helpers to be built in any case. Setting all callbacks in all drivers explicitly will allow to make the I/O helpers optional. This benefits systems that do not use these functions. No functional changes. Signed-off-by: Thomas Zimmermann <[email protected]> Cc: "James E.J. Bottomley" <[email protected]> --- drivers/video/fbdev/Kconfig | 1 + drivers/video/fbdev/stifb.c | 2 ++ 2 files changed, 3 insertions(+) diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig index b018f10ad07fc..a7587f680e3a2 100644 --- a/drivers/video/fbdev/Kconfig +++ b/drivers/video/fbdev/Kconfig @@ -384,6 +384,7 @@ config FB_STI select FB_CFB_FILLRECT select FB_CFB_COPYAREA select FB_CFB_IMAGEBLIT + select FB_IOMEM_FOPS select STI_CORE default y help diff --git a/drivers/video/fbdev/stifb.c b/drivers/video/fbdev/stifb.c index c746deb79afce..548d992f8cb18 100644 --- a/drivers/video/fbdev/stifb.c +++ b/drivers/video/fbdev/stifb.c @@ -1167,12 +1167,14 @@ stifb_init_display(struct stifb_info *fb) static const struct fb_ops stifb_ops = { .owner = THIS_MODULE, + __FB_DEFAULT_IOMEM_OPS_RDWR, .fb_check_var = stifb_check_var, .fb_setcolreg = stifb_setcolreg, .fb_blank = stifb_blank, .fb_fillrect = stifb_fillrect, .fb_copyarea = stifb_copyarea, .fb_imageblit = cfb_imageblit, + __FB_DEFAULT_IOMEM_OPS_MMAP, }; -- 2.42.0
