--- /sys/src/9k/386/ether8139.c
+++ /sys/src/9k/386/ether8139.c
@@ -749,7 +749,7 @@ rtl8139match(Ether* edev, int id)
 
 		if(pcigetpms(p) > 0){
 			pcisetpms(p, 0);
-	
+
 			for(i = 0; i < 6; i++)
 				pcicfgw32(p, PciBAR0+i*4, p->mem[i].bar);
 			pcicfgw8(p, PciINTL, p->intl);
--- /sys/src/9k/386/pmcio.c
+++ /sys/src/9k/386/pmcio.c
@@ -36,7 +36,7 @@ enum {
 	 * section 2.16 and 3.14
 	*/
 	PeK10,
-	
+
 };
 
 enum {
@@ -53,7 +53,7 @@ enum {						/* MSRs */
 };
 
 enum {						/* HW Performance Counters Event Selector */
-    				 
+
 	PeHo		= 0x0000020000000000ull,/* Host only */
 	PeGo		= 0x0000010000000000ull,/* Guest only */
 	PeEvMskH	= 0x0000000f00000000ull,/* Event mask H */
@@ -232,7 +232,7 @@ pmcconfigure(void)
 	int i, j, isrecog;
 
 	isrecog = 0;
-	
+
 	if(memcmp(&m->cpuinfo[0][1], "AuthcAMDenti", 12) == 0){
 		isrecog++;
 		cfg.ctrbase = PerfCtrbaseAmd;
@@ -327,7 +327,7 @@ pmctrans(PmcCtl *p)
 }
 
 //PeHo|PeGo
-#define PeAll	(PeOS|PeUsr)	
+#define PeAll	(PeOS|PeUsr)
 #define SetEvMsk(v, e) ((v)|(((e)&PeEvMskL)|(((e)<<(PeEvMsksh-8))&PeEvMskH)))
 #define SetUMsk(v, u) ((v)|(((u)<<8ull)&PeUnMsk))
 
--- /sys/src/9k/port/sysproc.c
+++ /sys/src/9k/port/sysproc.c
@@ -388,7 +388,7 @@ sysexec(Ar0* ar0, va_list list)
 
 	/*
 	 * As the pass is made over the arguments and they are pushed onto
-	 * the temporary stack, make a good faith copy in args for up->args. 
+	 * the temporary stack, make a good faith copy in args for up->args.
 	 */
 	args = smalloc(128);
 	if(waserror()){