[PATCH] gcc-3.4.0 fixes

From: Mikael Pettersson <mikpe@user.it.uu.se>

This patch fixes three warnings from gcc-3.4.0 in 2.6.6-rc3:

- arch/i386/pci/pcbios.c: use of "+m" constraint

- drivers/char/ftape/: use of cast-as-lvalue

- drivers/char/ftape/: __attribute__((packed)) on something containing only
  bytes

arch/i386/pci/pcbios.c

@@ -431,11 +431,13 @@ struct irq_routing_table * __devinit pcibios_get_irq_routing_table(void)
 		"1:"
 		: "=a" (ret),
 		  "=b" (map),
-		  "+m" (opt)
+		  "=m" (opt)
 		: "0" (PCIBIOS_GET_ROUTING_OPTIONS),
 		  "1" (0),
 		  "D" ((long) &opt),
-		  "S" (&pci_indirect));
+		  "S" (&pci_indirect),
+		  "m" (opt)
+		: "memory");
 	DBG("OK  ret=%d, size=%d, map=%x\n", ret, opt.size, map);
 	if (ret & 0xff00)
 		printk(KERN_ERR "PCI: Error %02x when fetching IRQ routing table.\n", (ret >> 8) & 0xff);

drivers/char/ftape/lowlevel/ftape-bsm.c

@@ -203,6 +203,7 @@ static void print_bad_sector_map(void)
 	    ft_format_code == fmt_1100ft) {
 		SectorCount *ptr = (SectorCount *)bad_sector_map;
 		unsigned int sector;
+		__u16 *ptr16;
 
 		while((sector = get_sector(ptr++)) != 0) {
 			if ((ft_format_code == fmt_big || 
@@ -218,9 +219,10 @@ static void print_bad_sector_map(void)
 		}
 		/*  Display old ftape's end-of-file marks
 		 */
-		while ((sector = get_unaligned(((__u16*)ptr)++)) != 0) {
+		ptr16 = (__u16*)ptr;
+		while ((sector = get_unaligned(ptr16++)) != 0) {
 			TRACE(ft_t_noise, "Old ftape eof mark: %4d/%2d",
-			      sector, get_unaligned(((__u16*)ptr)++));
+			      sector, get_unaligned(ptr16++));
 		}
 	} else { /* fixed size format */
 		for (i = ft_first_data_segment;

drivers/char/ftape/lowlevel/ftape-bsm.h

@@ -47,7 +47,7 @@ typedef __u32 SectorMap;
  */
 typedef struct NewSectorMap {          
 	__u8 bytes[3];
-} SectorCount __attribute__((packed));
+} SectorCount;
 
 
 /*

drivers/char/ftape/zftape/zftape-eof.c

@@ -123,7 +123,7 @@ static __u8 * find_end_of_eof_list(__u8 * ptr, __u8 * limit)
 	while (ptr + 3 < limit) {
 
 		if (get_unaligned((__u32*)ptr)) {
-			++(__u32*)ptr;
+			ptr += sizeof(__u32);
 		} else {
 			return ptr;
 		}