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SubjectRe: Linux 2.4.6-ac4
Alan,

Compiling 2.4.6-ac4 (x86, CONFIG_PCI) I get:

gcc -D__KERNEL__ -I/tmp/linux-2.4.6-ac4/include -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer -fno-strict-aliasing -fno-common -pipe -mpreferred-stack-boundary=2 -march=i686 -c -o quirks.o quirks.c
quirks.c:112: warning: `/*' within comment
quirks.c: In function `quirk_vialatency':
quirks.c:145: warning: passing arg 3 of `pci_write_config_byte' makes integer from pointer without a cast
...
gcc -D__KERNEL__ -I/tmp/linux-2.4.6-ac4/include -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer -fno-strict-aliasing -fno-common -pipe -mpreferred-stack-boundary=2 -march=i686 -c -o bluesmoke.o bluesmoke.c
bluesmoke.c:241: warning: initialization from incompatible pointer type
Of these three warnings, the second (drivers/pci/quirks.c:pci_write_config_byte)
indicates a real bug (passing a pointer to int instead of the int itself).
The patch below fixes this bug and silences the other two warnings.

/Mikael


--- linux-2.4.6-ac4/arch/i386/kernel/bluesmoke.c.~1~ Mon Jul 16 13:10:04 2001
+++ linux-2.4.6-ac4/arch/i386/kernel/bluesmoke.c Mon Jul 16 13:25:01 2001
@@ -233,7 +233,7 @@
}
}

-static int __init mcheck_disable(char *str, int *unused)
+static int __init mcheck_disable(char *str)
{
mce_disabled = 1;
return 0;
--- linux-2.4.6-ac4/drivers/pci/quirks.c.~1~ Mon Jul 16 13:10:06 2001
+++ linux-2.4.6-ac4/drivers/pci/quirks.c Mon Jul 16 13:21:40 2001
@@ -108,7 +108,7 @@
if(p!=NULL)
{
pci_read_config_byte(p, PCI_CLASS_REVISION, &rev);
- /* 0x40 - 0x4f == 686B, 0x10 - 0x2f == 686A; thanks Dan Hollis
+ /* 0x40 - 0x4f == 686B, 0x10 - 0x2f == 686A; thanks Dan Hollis */
/* Check for buggy part revisions */
if (rev < 0x40 && rev > 0x42)
return;
@@ -142,7 +142,7 @@
"Master priority rotation on every PCI master grant */
busarb &= ~(1<<5);
busarb |= (1<<4);
- pci_write_config_byte(dev, 0x76, &busarb);
+ pci_write_config_byte(dev, 0x76, busarb);
printk(KERN_INFO "Applying VIA southbridge workaround.\n");
}

-
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