Re: [next] mm/mmap.c:1962:25: error: passing argument 1 of 'vma_find' from incompatible pointer type

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* Naresh Kamboju <naresh.kamboju@xxxxxxxxxx> [220224 09:03]:
> Linux next-20220223 arch parisc builds failed due to following errors.
> Build configs:
>   - gcc-11-defconfig
>   - gcc-11-allnoconfig
>   - gcc-11-tinyconfig
> 
> metadata:
>   git_ref: master
>   git_repo: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next
>   git_sha: d4a0ae62a277377de396850ed4b709b6bd9b7326
>   git_describe: next-20220223
>   arch: parisc
>   toolchain: gcc-11
> 
> 
> Build error:
> -----------
> mm/mmap.c: In function 'expand_upwards':
> mm/mmap.c:1962:25: error: passing argument 1 of 'vma_find' from
> incompatible pointer type [-Werror=incompatible-pointer-types]
>  1962 |         next = vma_find(mm, vma->vm_end);
>       |                         ^~
>       |                         |
>       |                         struct mm_struct *

I have a fix and will push it into my tree for next - at least it fixes the
below tuxmake command.  I am attempting to boot test it.  If anyone wants to
try the fix, I've included it below since it is rather small.

-       next = vma_find(mm, vma->vm_end);
-       if (next && next->vm_start < gap_addr && vma_is_accessible(next)) {
+       next = find_vma_intersection(mm, vma->vm_end, gap_addr);
+       if (next && vma_is_accessible(next)) {


> In file included from arch/parisc/include/asm/cacheflush.h:5,
>                  from include/linux/cacheflush.h:5,
>                  from include/linux/highmem.h:8,
>                  from include/linux/bvec.h:10,
>                  from include/linux/blk_types.h:10,
>                  from include/linux/writeback.h:13,
>                  from include/linux/backing-dev.h:16,
>                  from mm/mmap.c:14:
> include/linux/mm.h:661:54: note: expected 'struct vma_iterator *' but
> argument is of type 'struct mm_struct *'
>   661 | struct vm_area_struct *vma_find(struct vma_iterator *vmi,
> unsigned long max)
>       |                                 ~~~~~~~~~~~~~~~~~~~~~^~~
> cc1: some warnings being treated as errors
> 
> Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx>
> 
> Steps to reproduce:
> ------------------
> # To install tuxmake on your system globally:
> # sudo pip3 install -U tuxmake
> 
> tuxmake --runtime podman --target-arch parisc --toolchain gcc-11
> --kconfig allnoconfig
> 
> 
> --
> Linaro LKFT
> https://lkft.linaro.org
> 
> [1] https://builds.tuxbuild.com/25XO7KdJCJcum36gCorICgGU8C5/



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