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authorLinus Torvalds <torvalds@linux-foundation.org>2011-06-29 10:10:07 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-06-29 10:10:07 -0700
commit49743170556e13156a64f8f20fa412805771b4e1 (patch)
tree6289b5daebd02f3b87c71c88e0ac76a4a802252f
parent0d72c6fcb5cd215eeab824fac216ea42c5b574aa (diff)
ahci: change 'masking port_map' printk to KERN_WARNING level
It's not so much an error as a warning about normal Marvell crazines. So don't use KERN_ERR that ends up spamming the console even in quiet mode, it's not _that_ critical. Explained by Jeff: "Long explanation, it's a mess: Marvell took standard AHCI, and bastardized it to include a weird mode whereby PATA devices appear inside the AHCI DMA and interrupt infrastructure you're familiar with. So, PATA devices appear via pata_marvell driver, using basic legacy IDE programming interface. But SATA devices, which might also be attached to this chip, either work in under-performing mode or simply don't work at all (e.g. newer 6 Gbps devices or port multiplier attachments, NCQ, ...) On the other hand, 'ahci' driver loads and works with the chip's attached SATA devices quite beautifully, but is completely unable to drive any attached PATA devices, due to the Marvell-specific PATA-under-AHCI interface. The "masking port_map 0x7 -> 0x3" message is the ahci driver "hiding" the PATA port(s) from itself, making sure it will only drive the SATA ports it knows how to drive." Acked-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--drivers/ata/libahci.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index d38c40fe4dd..41223c7f020 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -452,7 +452,7 @@ void ahci_save_initial_config(struct device *dev,
}
if (mask_port_map) {
- dev_printk(KERN_ERR, dev, "masking port_map 0x%x -> 0x%x\n",
+ dev_printk(KERN_WARNING, dev, "masking port_map 0x%x -> 0x%x\n",
port_map,
port_map & mask_port_map);
port_map &= mask_port_map;