block: use min() instead of min_t()

min_t(unsigned int, a, b) casts an 'unsigned long' to 'unsigned int'.
Use min(a, b) instead as it promotes any 'unsigned int' to 'unsigned long'
and so cannot discard significant bits.

In this case the 'unsigned long' value is small enough that the result
is ok.

(Similarly for max_t() and clamp_t().)

Detected by an extra check added to min_t().

Signed-off-by: David Laight <david.laight.linux@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

Author: David Laight

block/blk-iocost.c

@@ -2334,10 +2334,8 @@ static void ioc_timer_fn(struct timer_list *timer)
 			else
 				usage_dur = max_t(u64, now.now - ioc->period_at, 1);
 
-			usage = clamp_t(u32,
-				DIV64_U64_ROUND_UP(usage_us * WEIGHT_ONE,
-						   usage_dur),
-				1, WEIGHT_ONE);
+			usage = clamp(DIV64_U64_ROUND_UP(usage_us * WEIGHT_ONE, usage_dur),
+				      1, WEIGHT_ONE);
 
 			/*
 			 * Already donating or accumulated enough to start.

block/partitions/efi.c

@@ -215,8 +215,7 @@ static int is_pmbr_valid(legacy_mbr *mbr, sector_t total_sectors)
 		sz = le32_to_cpu(mbr->partition_record[part].size_in_lba);
 		if (sz != (uint32_t) total_sectors - 1 && sz != 0xFFFFFFFF)
 			pr_debug("GPT: mbr size in lba (%u) different than whole disk (%u).\n",
-				 sz, min_t(uint32_t,
-					   total_sectors - 1, 0xFFFFFFFF));
+				 sz, (uint32_t)min(total_sectors - 1, 0xFFFFFFFF));
 	}
 done:
 	return ret;