[PATCH iproute2-next v4 3/3] tc: correct tc_pie_xstats field documentation

["Hemendra M. Naik" <hemendranaik@gmail.com>]

Correct the comments describing the delay and avg_dq_rate fields in
struct tc_pie_xstats to match the values exported by the kernel.

Update the `delay` field comment to indicate that the value is reported
in microseconds, matching the `PSCHED_TICKS2NS() / NSEC_PER_USEC`
conversion.

Similarly, update the `avg_dq_rate` field comment to indicate that the
value is reported in bytes/second, matching the conversion performed by
`avg_dq_rate * PSCHED_TICKS_PER_SEC >> PIE_SCALE`.

These are documentation-only changes and do not affect the UAPI or
runtime behavior.

Signed-off-by: Hemendra M. Naik <hemendranaik@gmail.com>
Signed-off-by: Vishal Kamath <vishy0777@gmail.com>
Signed-off-by: Mohit P. Tahiliani <tahiliani@nitk.edu.in>
---
 include/uapi/linux/pkt_sched.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/uapi/linux/pkt_sched.h b/include/uapi/linux/pkt_sched.h
index b99312d2..574463fa 100644
--- a/include/uapi/linux/pkt_sched.h
+++ b/include/uapi/linux/pkt_sched.h
@@ -920,9 +920,9 @@ enum {
 
 struct tc_pie_xstats {
 	__u64 prob;			/* current probability */
-	__u32 delay;			/* current delay in ms */
+	__u32 delay;			/* current delay in microseconds */
 	__u32 avg_dq_rate;		/* current average dq_rate in
-					 * bits/pie_time
+					 * bytes/second
 					 */
 	__u32 dq_rate_estimating;	/* is avg_dq_rate being calculated? */
 	__u32 packets_in;		/* total number of packets enqueued */
-- 
2.34.1