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libubb/physmem.c (physmem_xlat): make "v" "const"

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Since we may use the buffer as well for reading only, there is no point in
pretending physmem_xlat itself would try to write to it.
This commit is contained in:
Werner Almesberger 2013-01-26 20:42:33 -03:00
parent 8316bc0070
commit c796ab1c54
2 changed files with 4 additions and 2 deletions
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3
libubb/include/ubb/physmem.h
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@ -24,7 +24,8 @@ struct physmem_vec {
void *physmem_malloc(size_t size); void *physmem_malloc(size_t size);
void *physmem_calloc(size_t size); void *physmem_calloc(size_t size);
int physmem_xlat(void *v, size_t len, struct physmem_vec *vec, int vec_len); int physmem_xlat(const void *v, size_t len,
struct physmem_vec *vec, int vec_len);
int physmem_flush(const void *data, size_t size); int physmem_flush(const void *data, size_t size);
#endif /* !UBB_PHYSMEM_H */ #endif /* !UBB_PHYSMEM_H */

3
libubb/physmem.c
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@ -130,7 +130,8 @@ static unsigned long xlat_one(int fd, unsigned long vaddr)
} }
int physmem_xlat(void *v, size_t len, struct physmem_vec *vec, int vec_len) int physmem_xlat(const void *v, size_t len,
struct physmem_vec *vec, int vec_len)
{ {
static int fd = -1; static int fd = -1;
unsigned long vaddr = (unsigned long) v; unsigned long vaddr = (unsigned long) v;