From 62cd196ea9b757e7d992c9e5d13236109fd2e039 Mon Sep 17 00:00:00 2001
From: Kristian Høgsberg <krh@fedoraproject.org>
Date: Feb 16 2009 01:52:27 +0000
Subject: - Unbreak the rom-size patch.


---

diff --git a/libpciaccess-rom-size.patch b/libpciaccess-rom-size.patch
index 959b8ad..baf8026 100644
--- a/libpciaccess-rom-size.patch
+++ b/libpciaccess-rom-size.patch
@@ -1,15 +1,73 @@
 diff --git a/src/linux_sysfs.c b/src/linux_sysfs.c
-index 8c3cf67..ae9f38e 100644
+index 8c3cf67..2ea78c1 100644
 --- a/src/linux_sysfs.c
 +++ b/src/linux_sysfs.c
-@@ -338,6 +338,10 @@ pci_device_linux_sysfs_read_rom( struct pci_device * dev, void * buffer )
-     if ( rom_size == 0 )
- 	rom_size = 0x10000;
+@@ -227,6 +227,7 @@ pci_device_linux_sysfs_probe( struct pci_device * dev )
+     pciaddr_t bytes;
+     unsigned i;
+     int err;
++    struct stat  st;
  
-+    /* The caller has allocated dev->rom_size so cap the read amount. */
-+    if ( rom_size > dev->rom_size )
-+	rom_size = dev->rom_size;
+ 
+     err = pci_device_linux_sysfs_read( dev, config, 0, 256, & bytes );
+@@ -293,11 +294,28 @@ pci_device_linux_sysfs_probe( struct pci_device * dev )
+ 	    flags = strtoull( next, & next, 16 );
+ 	    if ( low_addr != 0 ) {
+ 		priv->rom_base = low_addr;
+-		dev->rom_size = (high_addr - low_addr) + 1;
+ 	    }
+ 	}
+     }
+ 
++    snprintf( name, 255, "%s/%04x:%02x:%02x.%1u/rom",
++	      SYS_BUS_PCI,
++	      dev->domain,
++	      dev->bus,
++	      dev->dev,
++	      dev->func );
++    
++    fd = open( name, O_RDWR );
++    if ( fd == -1 ) {
++	dev->rom_size = 0x10000;
++    } else if ( fstat( fd, & st ) == -1 ) {
++	close( fd );
++	dev->rom_size = 0x10000;
++    } else {
++	close( fd );
++	dev->rom_size = st.st_size == 0 ? 0x10000 : st.st_size;
++    }
 +
+     return err;
+ }
+ 
+@@ -309,7 +327,6 @@ pci_device_linux_sysfs_read_rom( struct pci_device * dev, void * buffer )
+     int fd;
+     struct stat  st;
+     int err = 0;
+-    size_t rom_size;
+     size_t total_bytes;
+ 
+ 
+@@ -334,10 +351,6 @@ pci_device_linux_sysfs_read_rom( struct pci_device * dev, void * buffer )
+ 	return errno;
+     }
+ 
+-    rom_size = st.st_size;
+-    if ( rom_size == 0 )
+-	rom_size = 0x10000;
+-
      /* This is a quirky thing on Linux.  Even though the ROM and the file
       * for the ROM in sysfs are read-only, the string "1" must be written to
       * the file to enable the ROM.  After the data has been read, "0" must be
+@@ -346,9 +359,9 @@ pci_device_linux_sysfs_read_rom( struct pci_device * dev, void * buffer )
+     write( fd, "1", 1 );
+     lseek( fd, 0, SEEK_SET );
+ 
+-    for ( total_bytes = 0 ; total_bytes < rom_size ; /* empty */ ) {
++    for ( total_bytes = 0 ; total_bytes < dev->rom_size ; /* empty */ ) {
+ 	const int bytes = read( fd, (char *) buffer + total_bytes,
+-				rom_size - total_bytes );
++				dev->rom_size - total_bytes );
+ 	if ( bytes == -1 ) {
+ 	    err = errno;
+ 	    break;
diff --git a/libpciaccess.spec b/libpciaccess.spec
index b1f44fc..dddc7b9 100644
--- a/libpciaccess.spec
+++ b/libpciaccess.spec
@@ -3,7 +3,7 @@
 
 Name:           libpciaccess
 Version:        0.10.3
-Release:        4%{?dist}
+Release:        5%{?dist}
 Summary:        PCI access library
 
 Group:          System Environment/Libraries
@@ -72,6 +72,9 @@ rm -rf $RPM_BUILD_ROOT
 %{_libdir}/pkgconfig/pciaccess.pc
 
 %changelog
+* Sun Feb 15 2009 Kristian Høgsberg <krh@redhat.com> - 0.10.3-5
+- Unbreak the rom-size patch.
+
 * Sun Feb 15 2009 Kristian Høgsberg <krh@redhat.com> - 0.10.3-4
 - Don't read more than the advertised rom_size.