Staging: rdma: Use min macro instead of ternary operator

This patch replaces ternary operator with macro min as it shorter and
thus increases code readability. Macro min return the minimum of the
two compared values.
Made a semantic patch for changes:

@@
type T;
T x;
T y;
@@
(
- x < y ? x : y
+ min(x,y)
|
- x > y ? x : y
+ max(x,y)
)
Signed-off-by: NBhumika Goyal <bhumirks@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rdma/hfi1/pio_copy.c

@@ -235,7 +235,7 @@ static inline void read_extra_bytes(struct pio_buf *pbuf,
 	while (nbytes) {
 		/* find the number of bytes in this u64 */
 		room = 8 - off;	/* this u64 has room for this many bytes */
-		xbytes = nbytes > room ? room : nbytes;
+		xbytes = min(room, nbytes);
 
 		/*
 		 * shift down to zero lower bytes, shift up to zero upper
@@ -565,7 +565,7 @@ static void mid_copy_mix(struct pio_buf *pbuf, const void *from, size_t nbytes)
 		/* calculate the end of data or end of block, whichever
 		   comes first */
 		send = pbuf->start + PIO_BLOCK_SIZE;
-		xend = send < dend ? send : dend;
+		xend = min(send, dend);
 
 		/* shift up to SOP=1 space */
 		dest += SOP_DISTANCE;
@@ -659,7 +659,7 @@ static void mid_copy_straight(struct pio_buf *pbuf,
 		/* calculate the end of data or end of block, whichever
 		   comes first */
 		send = pbuf->start + PIO_BLOCK_SIZE;
-		xend = send < dend ? send : dend;
+		xend = min(send, dend);
 
 		/* shift up to SOP=1 space */
 		dest += SOP_DISTANCE;