[PATCH] isa_check_signature() finally gone

last callers of isa_check_signature() switched to ioremap() +
check_signature()
Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/block/xd.c

@@ -266,7 +266,7 @@ static int __init xd_init(void)
 /* xd_detect: scan the possible BIOS ROM locations for the signature strings */
 static u_char __init xd_detect (u_char *controller, unsigned int *address)
 {
-	u_char i,j,found = 0;
+	int i, j;
 
 	if (xd_override)
 	{
@@ -275,15 +275,23 @@ static u_char __init xd_detect (u_char *controller, unsigned int *address)
 		return(1);
 	}
 
-	for (i = 0; i < (sizeof(xd_bases) / sizeof(xd_bases[0])) && !found; i++)
-		for (j = 1; j < (sizeof(xd_sigs) / sizeof(xd_sigs[0])) && !found; j++)
-			if (isa_check_signature(xd_bases[i] + xd_sigs[j].offset,xd_sigs[j].string,strlen(xd_sigs[j].string))) {
+	for (i = 0; i < (sizeof(xd_bases) / sizeof(xd_bases[0])); i++) {
+		void __iomem *p = ioremap(xd_bases[i], 0x2000);
+		if (!p)
+			continue;
+		for (j = 1; j < (sizeof(xd_sigs) / sizeof(xd_sigs[0])); j++) {
+			const char *s = xd_sigs[j].string;
+			if (check_signature(p + xd_sigs[j].offset, s, strlen(s))) {
 				*controller = j;
 				xd_type = j;
 				*address = xd_bases[i];
-				found++;
+				iounmap(p);
+				return 1;
 			}
-	return (found);
+		}
+		iounmap(p);
+	}
+	return 0;
 }
 
 /* do_xd_request: handle an incoming request */

drivers/scsi/aha152x.c

@@ -3830,10 +3830,15 @@ static int __init aha152x_init(void)
 	if (setup_count<ARRAY_SIZE(setup)) {
 #if !defined(SKIP_BIOSTEST)
 		ok = 0;
-		for (i = 0; i < ARRAY_SIZE(addresses) && !ok; i++)
+		for (i = 0; i < ARRAY_SIZE(addresses) && !ok; i++) {
+			void __iomem *p = ioremap(addresses[i], 0x4000);
+			if (!p)
+				continue;
 			for (j = 0; j<ARRAY_SIZE(signatures) && !ok; j++)
-				ok = isa_check_signature(addresses[i] + signatures[j].sig_offset,
+				ok = check_signature(p + signatures[j].sig_offset,
 								signatures[j].signature, signatures[j].sig_length);
+			iounmap(p);
+		}
 		if (!ok && setup_count == 0)
 			return 0;
 

drivers/scsi/dtc.c

@@ -232,17 +232,25 @@ static int __init dtc_detect(Scsi_Host_Template * tpnt)
 			base = overrides[current_override].address;
 		else
 			for (; !base && (current_base < NO_BASES); ++current_base) {
+				void __iomem *p;
 #if (DTCDEBUG & DTCDEBUG_INIT)
 				printk("scsi-dtc : probing address %08x\n", bases[current_base].address);
 #endif
-				for (sig = 0; sig < NO_SIGNATURES; ++sig)
-					if (!bases[current_base].noauto && isa_check_signature(bases[current_base].address + signatures[sig].offset, signatures[sig].string, strlen(signatures[sig].string))) {
+				if (bases[current_base].noauto)
+					continue;
+				p = ioremap(bases[current_base].address, 0x2000);
+				if (!p)
+					continue;
+				for (sig = 0; sig < NO_SIGNATURES; ++sig) {
+					if (check_signature(p + signatures[sig].offset, signatures[sig].string, strlen(signatures[sig].string))) {
 						base = bases[current_base].address;
 #if (DTCDEBUG & DTCDEBUG_INIT)
 						printk("scsi-dtc : detected board.\n");
 #endif
 						break;
 					}
+				}
+				iounmap(p);
 			}
 
 #if defined(DTCDEBUG) && (DTCDEBUG & DTCDEBUG_INIT)

drivers/scsi/fdomain.c

@@ -384,6 +384,7 @@ enum out_port_type {
 /* .bss will zero all the static variables below */
 static int               port_base;
 static unsigned long     bios_base;
+static void __iomem *    bios_mem;
 static int               bios_major;
 static int               bios_minor;
 static int               PCI_bus;
@@ -676,12 +677,15 @@ static int fdomain_isa_detect( int *irq, int *iobase )
    printk( "scsi: <fdomain> fdomain_isa_detect:" );
 #endif
 
-   for (i = 0; !bios_base && i < ADDRESS_COUNT; i++) {
+   for (i = 0; i < ADDRESS_COUNT; i++) {
+      void __iomem *p = ioremap(addresses[i], 0x2000);
+      if (!p)
+	continue;
 #if DEBUG_DETECT
       printk( " %lx(%lx),", addresses[i], bios_base );
 #endif
-      for (j = 0; !bios_base && j < SIGNATURE_COUNT; j++) {
-	 if (isa_check_signature(addresses[i] + signatures[j].sig_offset,
+      for (j = 0; j < SIGNATURE_COUNT; j++) {
+	 if (check_signature(p + signatures[j].sig_offset,
 			     signatures[j].signature,
 			     signatures[j].sig_length )) {
 	    bios_major = signatures[j].major_bios_version;
@@ -689,10 +693,14 @@ static int fdomain_isa_detect( int *irq, int *iobase )
 	    PCI_bus    = (signatures[j].flag == 1);
 	    Quantum    = (signatures[j].flag > 1) ? signatures[j].flag : 0;
 	    bios_base  = addresses[i];
+	    bios_mem   = p;
+	    goto found;
 	 }
       }
+      iounmap(p);
    }
-   
+ 
+found:
    if (bios_major == 2) {
       /* The TMC-1660/TMC-1680 has a RAM area just after the BIOS ROM.
 	 Assuming the ROM is enabled (otherwise we wouldn't have been
@@ -705,13 +713,13 @@ static int fdomain_isa_detect( int *irq, int *iobase )
       switch (Quantum) {
       case 2:			/* ISA_200S */
       case 3:			/* ISA_250MG */
-	 base = isa_readb(bios_base + 0x1fa2) + (isa_readb(bios_base + 0x1fa3) << 8);
+	 base = readb(bios_mem + 0x1fa2) + (readb(bios_mem + 0x1fa3) << 8);
 	 break;
       case 4:			/* ISA_200S (another one) */
-	 base = isa_readb(bios_base + 0x1fa3) + (isa_readb(bios_base + 0x1fa4) << 8);
+	 base = readb(bios_mem + 0x1fa3) + (readb(bios_mem + 0x1fa4) << 8);
 	 break;
       default:
-	 base = isa_readb(bios_base + 0x1fcc) + (isa_readb(bios_base + 0x1fcd) << 8);
+	 base = readb(bios_mem + 0x1fcc) + (readb(bios_mem + 0x1fcd) << 8);
 	 break;
       }
    
@@ -1611,26 +1619,26 @@ static int fdomain_16x0_biosparam(struct scsi_device *sdev,
       case 2:			/* ISA_200S */
 				/* The value of 25 has never been verified.
 				   It should probably be 15. */
-	 offset = bios_base + 0x1f33 + drive * 25;
+	 offset = 0x1f33 + drive * 25;
 	 break;
       case 3:			/* ISA_250MG */
-	 offset = bios_base + 0x1f36 + drive * 15;
+	 offset = 0x1f36 + drive * 15;
 	 break;
       case 4:			/* ISA_200S (another one) */
-	 offset = bios_base + 0x1f34 + drive * 15;
+	 offset = 0x1f34 + drive * 15;
 	 break;
       default:
-	 offset = bios_base + 0x1f31 + drive * 25;
+	 offset = 0x1f31 + drive * 25;
 	 break;
       }
-      isa_memcpy_fromio( &i, offset, sizeof( struct drive_info ) );
+      memcpy_fromio( &i, bios_mem + offset, sizeof( struct drive_info ) );
       info_array[0] = i.heads;
       info_array[1] = i.sectors;
       info_array[2] = i.cylinders;
    } else if (bios_major == 3
 	      && bios_minor >= 0
 	      && bios_minor < 4) { /* 3.0 and 3.2 BIOS */
-      memcpy_fromio( &i, bios_base + 0x1f71 + drive * 10,
+      memcpy_fromio( &i, bios_mem + 0x1f71 + drive * 10,
 		     sizeof( struct drive_info ) );
       info_array[0] = i.heads + 1;
       info_array[1] = i.sectors;

drivers/scsi/seagate.c

@@ -454,12 +454,18 @@ int __init seagate_st0x_detect (Scsi_Host_Template * tpnt)
  * space for the on-board RAM instead.
  */
 
-		for (i = 0; i < (sizeof (seagate_bases) / sizeof (unsigned int)); ++i)
-			for (j = 0; !base_address && j < NUM_SIGNATURES; ++j)
-				if (isa_check_signature(seagate_bases[i] + signatures[j].offset, signatures[j].signature, signatures[j].length)) {
+		for (i = 0; i < (sizeof (seagate_bases) / sizeof (unsigned int)); ++i) {
+			void __iomem *p = ioremap(seagate_base[i], 0x2000);
+			if (!p)
+				continue;
+			for (j = 0; j < NUM_SIGNATURES; ++j)
+				if (check_signature(p + signatures[j].offset, signatures[j].signature, signatures[j].length)) {
 					base_address = seagate_bases[i];
 					controller_type = signatures[j].type;
+					break;
 				}
+			iounmap(p);
+		}
 #endif				/* OVERRIDE */
 	}
 	/* (! controller_type) */

drivers/scsi/t128.c

@@ -211,13 +211,17 @@ int __init t128_detect(Scsi_Host_Template * tpnt){
 	    base = overrides[current_override].address;
 	else 
 	    for (; !base && (current_base < NO_BASES); ++current_base) {
+		void __iomem *p;
 #if (TDEBUG & TDEBUG_INIT)
     printk("scsi-t128 : probing address %08x\n", bases[current_base].address);
 #endif
+		if (bases[current_base].noauto)
+			continue;
+		p = ioremap(bases[current_base].address, 0x2000);
+		if (!p)
+			continue;
 		for (sig = 0; sig < NO_SIGNATURES; ++sig) 
-		    if (!bases[current_base].noauto && 
-			isa_check_signature(bases[current_base].address +
-					signatures[sig].offset,
+		    if (check_signature(p + signatures[sig].offset,
 					signatures[sig].string,
 					strlen(signatures[sig].string))) {
 			base = bases[current_base].address;
@@ -226,6 +230,7 @@ int __init t128_detect(Scsi_Host_Template * tpnt){
 #endif
 			break;
 		    }
+		iounmap(p);
 	    }
 
 #if defined(TDEBUG) && (TDEBUG & TDEBUG_INIT)

include/asm-alpha/io.h

@@ -631,16 +631,6 @@ isa_memcpy_toio(unsigned long offset, const void *src, long n)
 	iounmap(addr);
 }
 
-static inline int
-isa_check_signature(unsigned long offset, const unsigned char *sig, long len)
-{
-	void __iomem *addr = ioremap(offset, len);
-	int ret = check_signature(addr, sig, len);
-	iounmap(addr);
-	return ret;
-}
-
-
 /*
  * The Alpha Jensen hardware for some rather strange reason puts
  * the RTC clock at 0x170 instead of 0x70. Probably due to some

include/asm-arm/io.h

@@ -176,7 +176,7 @@ extern void _memset_io(void __iomem *, int, size_t);
 				eth_copy_and_sum((s),__mem_pci(c),(l),(b))
 
 static inline int
-check_signature(unsigned long io_addr, const unsigned char *signature,
+check_signature(void __iomem *io_addr, const unsigned char *signature,
 		int length)
 {
 	int retval = 0;
@@ -226,23 +226,6 @@ check_signature(unsigned long io_addr, const unsigned char *signature,
 #define isa_eth_io_copy_and_sum(a,b,c,d) \
 				eth_copy_and_sum((a),__mem_isa(b),(c),(d))
 
-static inline int
-isa_check_signature(unsigned long io_addr, const unsigned char *signature,
-		    int length)
-{
-	int retval = 0;
-	do {
-		if (isa_readb(io_addr) != *signature)
-			goto out;
-		io_addr++;
-		signature++;
-		length--;
-	} while (length);
-	retval = 1;
-out:
-	return retval;
-}
-
 #else	/* __mem_isa */
 
 #define isa_readb(addr)			(__readwrite_bug("isa_readb"),0)
@@ -258,8 +241,6 @@ isa_check_signature(unsigned long io_addr, const unsigned char *signature,
 #define isa_eth_io_copy_and_sum(a,b,c,d) \
 				__readwrite_bug("isa_eth_io_copy_and_sum")
 
-#define isa_check_signature(io,sig,len)	(0)
-
 #endif	/* __mem_isa */
 
 /*

include/asm-i386/io.h

@@ -248,36 +248,6 @@ static inline int check_signature(volatile void __iomem * io_addr,
 	return retval;
 }
 
-/**
- *	isa_check_signature		-	find BIOS signatures
- *	@io_addr: mmio address to check 
- *	@signature:  signature block
- *	@length: length of signature
- *
- *	Perform a signature comparison with the ISA mmio address io_addr.
- *	Returns 1 on a match.
- *
- *	This function is deprecated. New drivers should use ioremap and
- *	check_signature.
- */
- 
-
-static inline int isa_check_signature(unsigned long io_addr,
-	const unsigned char *signature, int length)
-{
-	int retval = 0;
-	do {
-		if (isa_readb(io_addr) != *signature)
-			goto out;
-		io_addr++;
-		signature++;
-		length--;
-	} while (length);
-	retval = 1;
-out:
-	return retval;
-}
-
 /*
  *	Cache management
  *

include/asm-m32r/io.h

@@ -167,7 +167,7 @@ static inline void _writel(unsigned long l, unsigned long addr)
 #define flush_write_buffers() do { } while (0)  /* M32R_FIXME */
 
 /**
- *	isa_check_signature		-	find BIOS signatures
+ *	check_signature		-	find BIOS signatures
  *	@io_addr: mmio address to check
  *	@signature:  signature block
  *	@length: length of signature
@@ -179,14 +179,14 @@ static inline void _writel(unsigned long l, unsigned long addr)
  *	check_signature.
  */
 
-static inline int isa_check_signature(unsigned long io_addr,
+static inline int check_signature(void __iomem *io_addr,
         const unsigned char *signature, int length)
 {
         int retval = 0;
 #if 0
-printk("isa_check_signature\n");
+printk("check_signature\n");
         do {
-                if (isa_readb(io_addr) != *signature)
+                if (readb(io_addr) != *signature)
                         goto out;
                 io_addr++;
                 signature++;

include/asm-mips/io.h

@@ -388,20 +388,6 @@ static inline int check_signature(unsigned long io_addr,
 	return retval;
 }
 
-/*
- *     isa_check_signature             -       find BIOS signatures
- *     @io_addr: mmio address to check
- *     @signature:  signature block
- *     @length: length of signature
- *
- *     Perform a signature comparison with the ISA mmio address io_addr.
- *     Returns 1 on a match.
- *
- *     This function is deprecated. New drivers should use ioremap and
- *     check_signature.
- */
-#define isa_check_signature(io, s, l)	check_signature(i,s,l)
-
 static inline void __outb(unsigned char val, unsigned long port)
 {
 	port = __swizzle_addr_b(port);

include/asm-ppc/io.h

@@ -452,13 +452,6 @@ static inline int check_signature(volatile void __iomem * io_addr,
 	return retval;
 }
 
-/* Make some pcmcia drivers happy */
-static inline int isa_check_signature(unsigned long io_addr,
-	const unsigned char *signature, int length)
-{
-	return 0;
-}
-
 /*
  * Here comes the ppc implementation of the IOMAP 
  * interfaces.

include/asm-x86_64/io.h

@@ -320,38 +320,6 @@ static inline int check_signature(void __iomem *io_addr,
 	return retval;
 }
 
-#ifndef __i386__
-/**
- *	isa_check_signature		-	find BIOS signatures
- *	@io_addr: mmio address to check 
- *	@signature:  signature block
- *	@length: length of signature
- *
- *	Perform a signature comparison with the ISA mmio address io_addr.
- *	Returns 1 on a match.
- *
- *	This function is deprecated. New drivers should use ioremap and
- *	check_signature.
- */
- 
-
-static inline int isa_check_signature(unsigned long io_addr,
-	const unsigned char *signature, int length)
-{
-	int retval = 0;
-	do {
-		if (isa_readb(io_addr) != *signature)
-			goto out;
-		io_addr++;
-		signature++;
-		length--;
-	} while (length);
-	retval = 1;
-out:
-	return retval;
-}
-#endif
-
 /* Nothing to do */
 
 #define dma_cache_inv(_start,_size)		do { } while (0)