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libata: make it clear that sata_inic162x is experimental 

sata_inic162x never reached a state where it's reliable enough for
production use and data corruption is a relatively common occurrence.
Make the driver generate warning about the issues and mark the Kconfig
option as experimental.

If the situation doesn't improve, we'd be better off making it depend
on CONFIG_BROKEN.  Let's wait for several cycles and see if the kernel
message draws any attention.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Martin Braure de Calignon <braurede@free.fr>
Reported-by: Ben Hutchings <ben@decadent.org.uk>
Reported-by: risc4all@yahoo.com
This commit is contained in:
Tejun Heo 2013-07-22 16:53:36 -04:00
parent 42b9ab7ab7
commit bb96961928
2 changed files with 15 additions and 1 deletions
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2
drivers/ata/Kconfig
View File

@ -107,7 +107,7 @@ config SATA_FSL
If unsure, say N.
config SATA_INIC162X
tristate "Initio 162x SATA support"
tristate "Initio 162x SATA support (Very Experimental)"
depends on PCI
help
This option enables support for Initio 162x Serial ATA.

14
drivers/ata/sata_inic162x.c
View File

@ -6,6 +6,18 @@
*
* This file is released under GPL v2.
*
* **** WARNING ****
*
* This driver never worked properly and unfortunately data corruption is
* relatively common. There isn't anyone working on the driver and there's
* no support from the vendor. Do not use this driver in any production
* environment.
*
* http://thread.gmane.org/gmane.linux.debian.devel.bugs.rc/378525/focus=54491
* https://bugzilla.kernel.org/show_bug.cgi?id=60565
*
* *****************
*
* This controller is eccentric and easily locks up if something isn't
* right. Documentation is available at initio's website but it only
* documents registers (not programming model).
@ -807,6 +819,8 @@ static int inic_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
ata_print_version_once(&pdev->dev, DRV_VERSION);
dev_alert(&pdev->dev, "inic162x support is broken with common data corruption issues and will be disabled by default, contact linux-ide@vger.kernel.org if in production use\n");
/* alloc host */
host = ata_host_alloc_pinfo(&pdev->dev, ppi, NR_PORTS);
hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL);