iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ata: libahci: Don't read AHCI version twice in the save-config method

Browse Source 
There is no point in reading the AHCI version all over in the tail of the
ahci_save_initial_config() method. That register is RO and doesn't change
its value even after reset. So just reuse the data, which has already been
read from there earlier in the head of the function.

Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
This commit is contained in:
Serge Semin 2022-09-09 22:36:12 +03:00 committed by Damien Le Moal
parent 88589772e8
commit fad64dc065
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/ata/libahci.c
View File

@ -564,7 +564,7 @@ void ahci_save_initial_config(struct device *dev, struct ahci_host_priv *hpriv)
/* record values to use during operation */
hpriv->cap = cap;
hpriv->cap2 = cap2;
hpriv->version = readl(mmio + HOST_VERSION);
hpriv->version = vers;
hpriv->port_map = port_map;
if (!hpriv->start_engine)