A little patch for i386/kernel/microcode.c

Jo l'Indien (l_indien@magic.fr)
Wed, 24 Jan 2001 06:28:35 +0100

With a 2.4.1-pre10 kernel, I noticed that /dev/cpu/microcode
was created as a file, and note as a node in the devfs.
So, I made this very little patch to correct this:

--- microcode.c Thu Dec 28 06:28:29 2000
+++ microcode.c Wed Jan 24 04:47:08 2001
@@ -120,7 +120,7 @@
MICROCODE_MINOR);

devfs_handle = devfs_register(NULL, "cpu/microcode",
- DEVFS_FL_DEFAULT, 0, 0, S_IFREG | S_IRUSR | S_IWUSR,
+ DEVFS_FL_DEFAULT, MISC_MAJOR, MICROCODE_MINOR, S_IFCHR | S_IRUSR |
S_IWUSR,
&microcode_fops, NULL);
if (devfs_handle == NULL && error) {
printk(KERN_ERR "microcode: failed to devfs_register()\n");

This should be OK...
I cannot test this feature as I don't have a PIII,
but a K6-II... I'll try... Just to know...

I was wondering why /dev/cpu/mtrr was created as a file, not a node,
when I found this... For mtrr, it seems to be normal, as I didn't find
any informations relative of Major/Minor for this device...

Regards.

Jocelyn Mayer
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