Hello!
On 06/04/2017 03:42 PM, Christoph Hellwig wrote:
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
drivers/ata/libata-core.c | 59 +++++++++++++++++++++++++----------------------
1 file changed, 32 insertions(+), 27 deletions(-)
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 445e7050637b..f57131115594 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -2120,6 +2120,37 @@ static bool ata_log_supported(struct ata_device *dev, u8 log)
return get_unaligned_le16(&ap->sector_buf[log * 2]) ? true : false;
}
+static bool ata_identify_page_supported(struct ata_device *dev, u8 page)
+{
+ struct ata_port *ap = dev->link->ap;
+ unsigned int err, i;
+
+ if (!ata_log_supported(dev, ATA_LOG_IDENTIFY_DEVICE)) {
+ ata_dev_warn(dev, "ATA Identify Device Log not supported\n");
+ return false;
+ }
+
+ /*
+ * Read IDENTIFY DEVICE data log, page 0, to figure out if the page is
+ * supported.
+ */
+ err = ata_read_log_page(dev, ATA_LOG_IDENTIFY_DEVICE, 0, ap->sector_buf,
+ 1);
+ if (err) {
+ ata_dev_info(dev,
+ "failed to get Device Identify Log Emask 0x%x\n",
+ err);
Your line continuation style is spomewhat inconsistent: 2 tabs above and
tabs/spaces here...
[...]
MBR, Sergei
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