ide driver bug fix for the error message "hda: bad special flag 0x03"

Shen, JT (JT.Shen@hp.com)
Tue, 25 Jun 2002 11:43:42 -0500


diff -Naur linux-2.4.19-10/drivers/ide/ide-probe.c linux-2.4.19-11/drivers/ide/ide-probe.c
--- linux-2.4.19-10/drivers/ide/ide-probe.c Fri Jun 21 15:14:46 2002
+++ linux-2.4.19-11/drivers/ide/ide-probe.c Mon Jun 24 15:19:15 2002
@@ -131,6 +131,7 @@
type = ide_cdrom; /* Early cdrom models used zero */
case ide_cdrom:
drive->removable = 1;
+ drive->special.all = 0;
#ifdef CONFIG_PPC
/* kludge for Apple PowerBook internal zip */
if (!strstr(id->model, "CD-ROM") && strstr(id->model, "ZIP")) {

Andre,

Above is the patch that will fix the bug that when a user issue the command:

cat /proc/ide/hda/identify

the message "hda: bad special flag 0x03" gets written to the system log. This will happen because the .config file that RedHat uses to create the kernel image has the flag CONFIG_BLK_DEV_IDECD=m. Thus in ide.c code, it won't call ide_cdrom_reinit(). So for CDROM the special flag is left as 0x03.

The solution is to set the special flags to 0 when it is discovered as cdrom in ide-probe.c.

Let me know if you have any question.

Thanks,

JT
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