diff options
| author | Oliver Neukum <oneukum@suse.de> | 2013-10-14 15:24:55 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-10-16 13:32:04 -0700 |
| commit | 32c37fc30c52508711ea6a108cfd5855b8a07176 (patch) | |
| tree | 0e27849089be2e0f12bbcab665062e2f7d2454a0 /include | |
| parent | fd8573f5828873343903215f203f14dc82de397c (diff) | |
| download | lwn-32c37fc30c52508711ea6a108cfd5855b8a07176.tar.gz lwn-32c37fc30c52508711ea6a108cfd5855b8a07176.zip | |
usb-storage: add quirk for mandatory READ_CAPACITY_16
Some USB drive enclosures do not correctly report an
overflow condition if they hold a drive with a capacity
over 2TB and are confronted with a READ_CAPACITY_10.
They answer with their capacity modulo 2TB.
The generic layer cannot cope with that. It must be told
to use READ_CAPACITY_16 from the beginning.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/usb_usual.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/usb_usual.h b/include/linux/usb_usual.h index bf99cd01be20..630356866030 100644 --- a/include/linux/usb_usual.h +++ b/include/linux/usb_usual.h @@ -66,7 +66,9 @@ US_FLAG(INITIAL_READ10, 0x00100000) \ /* Initial READ(10) (and others) must be retried */ \ US_FLAG(WRITE_CACHE, 0x00200000) \ - /* Write Cache status is not available */ + /* Write Cache status is not available */ \ + US_FLAG(NEEDS_CAP16, 0x00400000) + /* cannot handle READ_CAPACITY_10 */ #define US_FLAG(name, value) US_FL_##name = value , enum { US_DO_ALL_FLAGS }; |