From: Karl Relton <karllinuxtest.relton@xxxxxxxxxxxx>
Commits ae38c78a03e1b77ad45248fcf097e4568e740209
and 00914025cc4e783d4703b4db1d47b41f389e50c8 added quirk flags
US_FL_NO_READ_DISC_INFO and US_FL_NO_READ_CAPACITY_16 to
the usb-storage driver. However they did not add the corresponding flags
to adjust_quirks() in usb.c, so there was no facility for a user
to over-ride/add them via the quirks module parameter.
Signed-off-by: Karl Relton <karllinuxtest.relton@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
Documentation/kernel-parameters.txt | 4 ++++
drivers/usb/storage/usb.c | 9 ++++++++-
2 files changed, 12 insertions(+), 1 deletions(-)
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index cc85a92..0e545e0 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -2581,6 +2581,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
bytes of sense data);
c = FIX_CAPACITY (decrease the reported
device capacity by one sector);
+ d = NO_READ_DISC_INFO (don't use
+ READ_DISC_INFO command);
+ e = NO_READ_CAPACITY_16 (don't use
+ READ_CAPACITY_16 command);
h = CAPACITY_HEURISTICS (decrease the
reported device capacity by one
sector if the number is odd);
diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c
index 4219c19..5ee7ac4 100644
--- a/drivers/usb/storage/usb.c
+++ b/drivers/usb/storage/usb.c
@@ -439,7 +439,8 @@ static void adjust_quirks(struct us_data *us)
US_FL_CAPACITY_HEURISTICS | US_FL_IGNORE_DEVICE |
US_FL_NOT_LOCKABLE | US_FL_MAX_SECTORS_64 |
US_FL_CAPACITY_OK | US_FL_IGNORE_RESIDUE |
- US_FL_SINGLE_LUN | US_FL_NO_WP_DETECT);
+ US_FL_SINGLE_LUN | US_FL_NO_WP_DETECT |
+ US_FL_NO_READ_DISC_INFO | US_FL_NO_READ_CAPACITY_16);
p = quirks;
while (*p) {
@@ -471,6 +472,12 @@ static void adjust_quirks(struct us_data *us)
case 'c':
f |= US_FL_FIX_CAPACITY;
break;
+ case 'd':
+ f |= US_FL_NO_READ_DISC_INFO;
+ break;
+ case 'e':
+ f |= US_FL_NO_READ_CAPACITY_16;
+ break;
case 'h':
f |= US_FL_CAPACITY_HEURISTICS;
break;
--
1.7.4.2
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