On Mon, 27 Jan 2025 23:21:42 +0000 Frank van der Linden <fvdl@xxxxxxxxxx> wrote:
> Currently, CMA manages one range of physically contiguous memory.
> Creation of larger CMA areas with hugetlb_cma may run in to gaps
> in physical memory, so that they are not able to allocate that
> contiguous physical range from memblock when creating the CMA
> area.
>
This one breaks my x86_64 allmodconfig build, which I find surprising.
Did I miss some dependency?
mm/cma_debug.c: In function 'cma_maxchunk_get':
mm/cma_debug.c:51:38: error: too few arguments to function 'cma_bitmap_maxno'
51 | unsigned long bitmap_maxno = cma_bitmap_maxno(cma);
| ^~~~~~~~~~~~~~~~
In file included from mm/cma_debug.c:16:
mm/cma.h:56:29: note: declared here
56 | static inline unsigned long cma_bitmap_maxno(struct cma *cma,
| ^~~~~~~~~~~~~~~~
mm/cma_debug.c:55:49: error: 'struct cma' has no member named 'bitmap'; did you mean 'dfs_bitmap'?
55 | start = find_next_zero_bit(cma->bitmap, bitmap_maxno, end);
| ^~~~~~
| dfs_bitmap
mm/cma_debug.c:58:42: error: 'struct cma' has no member named 'bitmap'; did you mean 'dfs_bitmap'?
58 | end = find_next_bit(cma->bitmap, bitmap_maxno, start);
| ^~~~~~
| dfs_bitmap
In file included from mm/cma_debug.c:9:
mm/cma_debug.c: In function 'cma_debugfs_add_one':
mm/cma_debug.c:169:33: error: 'struct cma' has no member named 'base_pfn'
169 | &cma->base_pfn, &cma_debugfs_fops);
| ^~
./include/linux/debugfs.h:129:38: note: in definition of macro 'debugfs_create_file'
129 | (name, mode, parent, data, fops)
| ^~~~
mm/cma_debug.c:176:45: error: 'struct cma' has no member named 'bitmap'; did you mean 'dfs_bitmap'?
176 | cma->dfs_bitmap.array = (u32 *)cma->bitmap;
| ^~~~~~
| dfs_bitmap
In file included from ./include/vdso/const.h:5,
from ./include/linux/const.h:4,
from ./include/linux/list.h:9,
from ./include/linux/wait.h:7,
from ./include/linux/wait_bit.h:8,
from ./include/linux/fs.h:6,
from ./include/linux/debugfs.h:15:
mm/cma_debug.c:177:51: error: too few arguments to function 'cma_bitmap_maxno'
177 | cma->dfs_bitmap.n_elements = DIV_ROUND_UP(cma_bitmap_maxno(cma),
| ^~~~~~~~~~~~~~~~
./include/uapi/linux/const.h:51:40: note: in definition of macro '__KERNEL_DIV_ROUND_UP'
51 | #define __KERNEL_DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d))
| ^
mm/cma_debug.c:177:38: note: in expansion of macro 'DIV_ROUND_UP'
177 | cma->dfs_bitmap.n_elements = DIV_ROUND_UP(cma_bitmap_maxno(cma),
| ^~~~~~~~~~~~
mm/cma.h:56:29: note: declared here
56 | static inline unsigned long cma_bitmap_maxno(struct cma *cma,
| ^~~~~~~~~~~~~~~~
