diff options
| author | Mike Christie <michaelc@cs.wisc.edu> | 2007-03-01 02:32:21 +0300 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2007-03-11 19:30:11 +0300 |
| commit | 0f238418b6d41cdfc85f2f399848429ff6fbfbd0 (patch) | |
| tree | 12a0b9cedc9aad715b1ade7955e365e173b37088 /drivers/scsi/iscsi_tcp.c | |
| parent | 8231f0eddbe425cc3b54f2d723bb03531925272e (diff) | |
| download | linux-0f238418b6d41cdfc85f2f399848429ff6fbfbd0.tar.xz | |
[SCSI] iscsi_tcp: print useful error message when iscsi crc23c allocation fails
People do not read the README and seem to like to
unselect the crc32c module even though iscsi_tcp selects
it for them. This patch spits a error that tells the user
that they really do need the module. Hopefully, we will
get fewer people asking about this now.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/iscsi_tcp.c')
| -rw-r--r-- | drivers/scsi/iscsi_tcp.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c index 861cb9be40b0..c9a3abf9e7b6 100644 --- a/drivers/scsi/iscsi_tcp.c +++ b/drivers/scsi/iscsi_tcp.c @@ -1777,14 +1777,24 @@ iscsi_tcp_conn_create(struct iscsi_cls_session *cls_session, uint32_t conn_idx) tcp_conn->tx_hash.tfm = crypto_alloc_hash("crc32c", 0, CRYPTO_ALG_ASYNC); tcp_conn->tx_hash.flags = 0; - if (IS_ERR(tcp_conn->tx_hash.tfm)) + if (IS_ERR(tcp_conn->tx_hash.tfm)) { + printk(KERN_ERR "Could not create connection due to crc32c " + "loading error %ld. Make sure the crc32c module is " + "built as a module or into the kernel\n", + PTR_ERR(tcp_conn->tx_hash.tfm)); goto free_tcp_conn; + } tcp_conn->rx_hash.tfm = crypto_alloc_hash("crc32c", 0, CRYPTO_ALG_ASYNC); tcp_conn->rx_hash.flags = 0; - if (IS_ERR(tcp_conn->rx_hash.tfm)) + if (IS_ERR(tcp_conn->rx_hash.tfm)) { + printk(KERN_ERR "Could not create connection due to crc32c " + "loading error %ld. Make sure the crc32c module is " + "built as a module or into the kernel\n", + PTR_ERR(tcp_conn->rx_hash.tfm)); goto free_tx_tfm; + } return cls_conn; |