lib: utils: Fix fdt_parse_aclint_node() for non-contiguous hartid

Currently, the fdt_parse_aclint_node() does not handle non-contiguous
hartid correctly and returns incorrect first_hartid and hart_count.
This is because the for-loop in fdt_parse_aclint_node() skips a hartid
for which hartindex is not available (aka corresponding CPU DT node
is disabled).

For example, on a platform with 4 HARTs (hartid 0, 1, 2, and 3) where
CPU DT nodes with hartid 0 and 2 are disabled, the fdt_parse_aclint_node()
returns first_hartid = 1 and hart_count = 3 which is incorrect.

To address the above issue, drop the sbi_hartid_to_hartindex() check
from the for-loop of fdt_parse_aclint_node().

Fixes: 5e90e54 ("lib: utils:Check that hartid is valid")
Reported-by: Maria Mbaye <[email protected]>
Signed-off-by: Anup Patel <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Anup Patel <[email protected]>

Author: avpatel

lib/utils/fdt/fdt_helper.c

@@ -1015,9 +1015,6 @@ int fdt_parse_aclint_node(const void *fdt, int nodeoffset,
 		if (rc)
 			continue;
 
-		if (SBI_HARTMASK_MAX_BITS <= sbi_hartid_to_hartindex(hartid))
-			continue;
-
 		if (match_hwirq == hwirq) {
 			if (hartid < first_hartid)
 				first_hartid = hartid;