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abuf: Provide a constant buffer

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Add a new initialiser which can accept a constant pointer.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2025-01-10 17:00:03 -07:00
committed by Tom Rini
parent d887432807
commit 7ba7c1dd86
3 changed files with 41 additions and 0 deletions
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22
test/lib/abuf.c
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@@ -46,6 +46,28 @@ static int lib_test_abuf_set(struct unit_test_state *uts)
}
LIB_TEST(lib_test_abuf_set, 0);
/* Test abuf_init_const() */
static int lib_test_abuf_init_const(struct unit_test_state *uts)
{
struct abuf buf;
ulong start;
void *ptr;
start = ut_check_free();
ptr = map_sysmem(0x100, 0);
abuf_init_const(&buf, ptr, 10);
ut_asserteq_ptr(ptr, buf.data);
ut_asserteq(10, buf.size);
/* No memory should have been allocated */
ut_assertok(ut_check_delta(start));
return 0;
}
LIB_TEST(lib_test_abuf_init_const, 0);
/* Test abuf_map_sysmem() and abuf_addr() */
static int lib_test_abuf_map_sysmem(struct unit_test_state *uts)
{