[PATCH 4/4] aic7xxx: remove excessive inlining

[Denis Vlasenko]

On Sunday 13 August 2006 15:03, Denis Vlasenko wrote:
> Basically, patches deinline some functions, mainly those
> which perform port I/O.

Comment says "Read high byte first as some registers increment..."
but code doesn't guarantee that, I think:
	return ((ahd_inb(ahd, port+1) << 8) | ahd_inb(ahd, port));
Compiler can reorder it.

Make the order explicit.
--
vda
diff -urpN -U4 linux-2.6.17.8.aic3/drivers/scsi/aic7xxx/aic79xx_core.c linux-2.6.17.8.aic4/drivers/scsi/aic7xxx/aic79xx_core.c
--- linux-2.6.17.8.aic3/drivers/scsi/aic7xxx/aic79xx_core.c	2006-08-13 12:01:42.000000000 +0200
+++ linux-2.6.17.8.aic4/drivers/scsi/aic7xxx/aic79xx_core.c	2006-08-13 12:14:13.000000000 +0200
@@ -341,9 +341,11 @@ ahd_inw(struct ahd_softc *ahd, u_int por
 	 * Read high byte first as some registers increment
 	 * or have other side effects when the low byte is
 	 * read.
 	 */
-	return ((ahd_inb(ahd, port+1) << 8) | ahd_inb(ahd, port));
+	uint16_t r = ahd_inb(ahd, port+1) << 8;
+	r |= ahd_inb(ahd, port);
+	return r;
 }
 
 void
 ahd_outw(struct ahd_softc *ahd, u_int port, u_int value)