entry->addr.id is u8 with a range from 0 to 255 and MAX_ADDR_ID is 255.
We should drop both false expressions of (entry->addr.id > MAX_ADDR_ID).
We should also remove the obsolete parentheses in the first if branch.
Use U8_MAX for MAX_ADDR_ID and add a comment to show the link to
mptcp_addr_info.id as suggested by Mr. Matthieu Baerts.
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Jean Sacren <sakiwit@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
u8 retrans_times;
};
-#define MAX_ADDR_ID 255
+/* max value of mptcp_addr_info.id */
+#define MAX_ADDR_ID U8_MAX
#define BITMAP_SZ DIV_ROUND_UP(MAX_ADDR_ID + 1, BITS_PER_LONG)
struct pm_nl_pernet {
entry->addr.id = find_next_zero_bit(pernet->id_bitmap,
MAX_ADDR_ID + 1,
pernet->next_id);
- if ((!entry->addr.id || entry->addr.id > MAX_ADDR_ID) &&
- pernet->next_id != 1) {
+ if (!entry->addr.id && pernet->next_id != 1) {
pernet->next_id = 1;
goto find_next;
}
}
- if (!entry->addr.id || entry->addr.id > MAX_ADDR_ID)
+ if (!entry->addr.id)
goto out;
__set_bit(entry->addr.id, pernet->id_bitmap);