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Groups > linux.kernel > #1684409
| From | Eric Engestrom <eric.engestrom@imgtec.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] fbdev: make get_fb_unmapped_area depends of !MMU |
| Date | 2017-07-10 18:40 +0200 |
| Message-ID | <u1JT5-7ny-19@gated-at.bofh.it> (permalink) |
| References | <u1IaC-6eJ-27@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Monday, 2017-07-10 16:48:55 +0200, Benjamin Gaignard wrote:
> Even if CONFIG_FB_PROVIDE_GET_FB_UNMAPPED_AREA flag is selected
> do not compile and use get_fb_unmapped_area() if CONFIG_MMU is
> also set. This will avoid mmap errors when compiling multi
> architectures at same time.
>
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
> ---
> drivers/video/fbdev/core/fbmem.c | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
> index 069fe79..16b5aef 100644
> --- a/drivers/video/fbdev/core/fbmem.c
> +++ b/drivers/video/fbdev/core/fbmem.c
> @@ -1492,7 +1492,7 @@ static long fb_compat_ioctl(struct file *file, unsigned int cmd,
> return 0;
> }
>
> -#ifdef CONFIG_FB_PROVIDE_GET_FB_UNMAPPED_AREA
> +#if defined(CONFIG_FB_PROVIDE_GET_FB_UNMAPPED_AREA) && !defined(CONFIG_MMU)
> unsigned long get_fb_unmapped_area(struct file *filp,
> unsigned long addr, unsigned long len,
> unsigned long pgoff, unsigned long flags)
> @@ -1519,7 +1519,8 @@ unsigned long get_fb_unmapped_area(struct file *filp,
> .open = fb_open,
> .release = fb_release,
> #if defined(HAVE_ARCH_FB_UNMAPPED_AREA) || \
> - defined(CONFIG_FB_PROVIDE_GET_FB_UNMAPPED_AREA)
> + (defined(CONFIG_FB_PROVIDE_GET_FB_UNMAPPED_AREA) && \\
^^
Double backslash
> + !defined(CONFIG_MMU))
> .get_unmapped_area = get_fb_unmapped_area,
> #endif
> #ifdef CONFIG_FB_DEFERRED_IO
> --
> 1.9.1
>
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[PATCH] fbdev: make get_fb_unmapped_area depends of !MMU Benjamin Gaignard <benjamin.gaignard@linaro.org> - 2017-07-10 16:50 +0200 Re: [PATCH] fbdev: make get_fb_unmapped_area depends of !MMU Eric Engestrom <eric.engestrom@imgtec.com> - 2017-07-10 18:40 +0200
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