3.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: "Robin H. Johnson" <robbat2@xxxxxxxxxx> commit b8bd6dc36186fe99afa7b73e9e2d9a98ad5c4865 upstream. A user on StackExchange had a failing SSD that's soldered directly onto the motherboard of his system. The BIOS does not give any option to disable it at all, so he can't just hide it from the OS via the BIOS. The old IDE layer had hdX=noprobe override for situations like this, but that was never ported to the libata layer. This patch implements a disable flag for libata.force. Example use: libata.force=2.0:disable [v2 of the patch, removed the nodisable flag per Tejun Heo] Signed-off-by: Robin H. Johnson <robbat2@xxxxxxxxxx> Signed-off-by: Tejun Heo <tj@xxxxxxxxxx> Link: http://unix.stackexchange.com/questions/102648/how-to-tell-linux-kernel-3-0-to-completely-ignore-a-failing-disk Link: http://askubuntu.com/questions/352836/how-can-i-tell-linux-kernel-to-completely-ignore-a-disk-as-if-it-was-not-even-co Link: http://superuser.com/questions/599333/how-to-disable-kernel-probing-for-drive Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- Documentation/kernel-parameters.txt | 2 ++ drivers/ata/libata-core.c | 1 + 2 files changed, 3 insertions(+) --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -1515,6 +1515,8 @@ bytes respectively. Such letter suffixes * atapi_dmadir: Enable ATAPI DMADIR bridge support + * disable: Disable this device. + If there are multiple matching configurations changing the same attribute, the last one is used. --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -6523,6 +6523,7 @@ static int __init ata_parse_force_one(ch { "norst", .lflags = ATA_LFLAG_NO_HRST | ATA_LFLAG_NO_SRST }, { "rstonce", .lflags = ATA_LFLAG_RST_ONCE }, { "atapi_dmadir", .horkage_on = ATA_HORKAGE_ATAPI_DMADIR }, + { "disable", .horkage_on = ATA_HORKAGE_DISABLE }, }; char *start = *cur, *p = *cur; char *id, *val, *endp; -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html