336d4615f8
At present dm/device.h includes the linux-compatible features. This requires including linux/compat.h which in turn includes a lot of headers. One of these is malloc.h which we thus end up including in every file in U-Boot. Apart from the inefficiency of this, it is problematic for sandbox which needs to use the system malloc() in some files. Move the compatibility features into a separate header file. Signed-off-by: Simon Glass <sjg@chromium.org>
63 lines
1.1 KiB
C
63 lines
1.1 KiB
C
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#include <common.h>
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#include <malloc.h>
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#include <memalign.h>
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#include <linux/compat.h>
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struct p_current cur = {
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.pid = 1,
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};
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__maybe_unused struct p_current *current = &cur;
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unsigned long copy_from_user(void *dest, const void *src,
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unsigned long count)
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{
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memcpy((void *)dest, (void *)src, count);
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return 0;
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}
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void *kmalloc(size_t size, int flags)
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{
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void *p;
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p = malloc_cache_aligned(size);
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if (p && flags & __GFP_ZERO)
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memset(p, 0, size);
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return p;
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}
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struct kmem_cache *get_mem(int element_sz)
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{
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struct kmem_cache *ret;
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ret = memalign(ARCH_DMA_MINALIGN, sizeof(struct kmem_cache));
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ret->sz = element_sz;
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return ret;
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}
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void *kmem_cache_alloc(struct kmem_cache *obj, int flag)
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{
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return malloc_cache_aligned(obj->sz);
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}
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/**
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* kmemdup - duplicate region of memory
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*
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* @src: memory region to duplicate
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* @len: memory region length
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* @gfp: GFP mask to use
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*
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* Return: newly allocated copy of @src or %NULL in case of error
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*/
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void *kmemdup(const void *src, size_t len, gfp_t gfp)
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{
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void *p;
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p = kmalloc(len, gfp);
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if (p)
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memcpy(p, src, len);
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return p;
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}
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