[PATCH] idefloppy suppress media not present errors
From: Matt Domsch <hidden>
Date: 2004-10-05 18:15:05
Also in:
lkml
Paul, Bartlomiej, Alan: Below is a patch to suppress printing uninformative errors from ide-floppy.c in response to commands to floppy drives in which no media is present. Without this patch, commands sent to ide-floppy devices without media inserted cause error messages on the console (KERN_ERR level) such as: ide-floppy: ide: I/O error, pc = 0 key = 2, asc = 3a asq = 0 ide-floppy: ide: I/O error, pc = 1b key = 2, asc = 3a asq = 0 ide-floppy: ide: I/O error, pc = 23 key = 2, asc = 3a asq = 0 ide-floppy: ide: I/O error, pc = 1e key = 2, asc = 3a asq = 0 ide-floppy: ide: I/O error, pc = 1e key = 2, asc = 3a asq = 0 Dell's Virtual Floppy (system management presents to the local system an IDE floppy device, which is actually a floppy device in a remote system connected over an IP link) exhibits this also, when connecting to a remote floppy drive with no media present. Please review and apply. Thanks, Matt -- Matt Domsch Sr. Software Engineer, Lead Engineer Dell Linux Solutions linux.dell.com & www.dell.com/linux Linux on Dell mailing lists @ http://lists.us.dell.com ===== ide-floppy.c 1.40 vs edited =====
--- 1.40/drivers/ide/ide-floppy.c 2004-08-12 19:03:53 -05:00
+++ edited/ide-floppy.c 2004-10-05 11:13:59 -05:00@@ -989,6 +989,20 @@ return ide_started; } +/** + * idefloppy_should_report_error() + * + * Supresses error messages resulting from Medium not present + */ +static inline int idefloppy_should_report_error(idefloppy_floppy_t *floppy) +{ + if (floppy->sense_key == 0x02 && + floppy->asc == 0x3a && + floppy->ascq == 0x00) + return 0; + return 1; +} + /* * Issue a packet command */
@@ -1021,12 +1035,13 @@ */ if (!test_bit(PC_ABORT, &pc->flags)) { if (!test_bit(PC_SUPPRESS_ERROR, &pc->flags)) { - printk(KERN_ERR "ide-floppy: %s: I/O error, " - "pc = %2x, key = %2x, " - "asc = %2x, ascq = %2x\n", - drive->name, pc->c[0], - floppy->sense_key, - floppy->asc, floppy->ascq); + if (idefloppy_should_report_error(floppy)) + printk(KERN_ERR "ide-floppy: %s: I/O error, " + "pc = %2x, key = %2x, " + "asc = %2x, ascq = %2x\n", + drive->name, pc->c[0], + floppy->sense_key, + floppy->asc, floppy->ascq); } /* Giving up */ pc->error = IDEFLOPPY_ERROR_GENERAL;
@@ -1242,11 +1257,13 @@ rq->nr_sectors, rq->current_nr_sectors); if (rq->errors >= ERROR_MAX) { - if (floppy->failed_pc != NULL) - printk(KERN_ERR "ide-floppy: %s: I/O error, pc = %2x," - " key = %2x, asc = %2x, ascq = %2x\n", - drive->name, floppy->failed_pc->c[0], - floppy->sense_key, floppy->asc, floppy->ascq); + if (floppy->failed_pc != NULL) { + if (idefloppy_should_report_error(floppy)) + printk(KERN_ERR "ide-floppy: %s: I/O error, pc = %2x," + " key = %2x, asc = %2x, ascq = %2x\n", + drive->name, floppy->failed_pc->c[0], + floppy->sense_key, floppy->asc, floppy->ascq); + } else printk(KERN_ERR "ide-floppy: %s: I/O error\n", drive->name);