Mass-storage and file-storage gadgets align the length to maximum-packet-size
when preparing the request to receive CBW. This is unnecessary and prevents the
controller driver from knowing that a short-packet is expected.
Signed-off-by: Mian Yousaf Kaukab <mian.yousaf.kaukab@xxxxxxxxxxxxxx>
---
drivers/usb/gadget/f_mass_storage.c | 6 ------
drivers/usb/gadget/file_storage.c | 6 ------
2 files changed, 0 insertions(+), 12 deletions(-)
diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index 6d8e533..b5ed42c 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -474,16 +474,10 @@ static int exception_in_progress(struct fsg_common *common)
return common->state > FSG_STATE_IDLE;
}
-/* Make bulk-out requests be divisible by the maxpacket size */
static void set_bulk_out_req_length(struct fsg_common *common,
struct fsg_buffhd *bh, unsigned int length)
{
- unsigned int rem;
-
bh->bulk_out_intended_length = length;
- rem = length % common->bulk_out_maxpacket;
- if (rem > 0)
- length += common->bulk_out_maxpacket - rem;
bh->outreq->length = length;
}
diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c
index a6eacb5..9ecd3ac 100644
--- a/drivers/usb/gadget/file_storage.c
+++ b/drivers/usb/gadget/file_storage.c
@@ -497,16 +497,10 @@ static int exception_in_progress(struct fsg_dev *fsg)
return (fsg->state > FSG_STATE_IDLE);
}
-/* Make bulk-out requests be divisible by the maxpacket size */
static void set_bulk_out_req_length(struct fsg_dev *fsg,
struct fsg_buffhd *bh, unsigned int length)
{
- unsigned int rem;
-
bh->bulk_out_intended_length = length;
- rem = length % fsg->bulk_out_maxpacket;
- if (rem > 0)
- length += fsg->bulk_out_maxpacket - rem;
bh->outreq->length = length;
}
--
1.7.4.1
--
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