From: Mathias Nyman <mathias.nyman@linux.intel.com>
To: <gregkh@linuxfoundation.org>
Cc: <linux-usb@vger.kernel.org>,
Mathias Nyman <mathias.nyman@linux.intel.com>
Subject: [PATCH 15/27] xhci: dbgtty: Pass dbc pointer when registering a dbctty device
Date: Thu, 23 Jul 2020 17:45:18 +0300 [thread overview]
Message-ID: <20200723144530.9992-16-mathias.nyman@linux.intel.com> (raw)
In-Reply-To: <20200723144530.9992-1-mathias.nyman@linux.intel.com>
Pass dbc pointer to the xhci_dbc_tty_register_device() and
xhci_dbc_tty_unregister_device() functions instead of xhci_hcd pointer
These functions don't need a xhci_hcd pointer anymore, only use case was
the xhci_err() function, which is now changed to a dev_err() instead.
No functional changes
This change helps decoupling xhci and DbC
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
---
drivers/usb/host/xhci-dbgcap.c | 8 +++-----
drivers/usb/host/xhci-dbgcap.h | 4 ++--
drivers/usb/host/xhci-dbgtty.c | 8 +++-----
3 files changed, 8 insertions(+), 12 deletions(-)
diff --git a/drivers/usb/host/xhci-dbgcap.c b/drivers/usb/host/xhci-dbgcap.c
index 1c53fdc791a4..dd8ac5918ad8 100644
--- a/drivers/usb/host/xhci-dbgcap.c
+++ b/drivers/usb/host/xhci-dbgcap.c
@@ -545,7 +545,7 @@ static void xhci_dbc_stop(struct xhci_hcd *xhci)
cancel_delayed_work_sync(&dbc->event_work);
if (port->registered)
- xhci_dbc_tty_unregister_device(xhci);
+ xhci_dbc_tty_unregister_device(dbc);
spin_lock_irqsave(&dbc->lock, flags);
ret = xhci_do_dbc_stop(dbc);
@@ -789,10 +789,8 @@ static void xhci_dbc_handle_events(struct work_struct *work)
enum evtreturn evtr;
struct xhci_dbc *dbc;
unsigned long flags;
- struct xhci_hcd *xhci;
dbc = container_of(to_delayed_work(work), struct xhci_dbc, event_work);
- xhci = dbc->xhci;
spin_lock_irqsave(&dbc->lock, flags);
evtr = xhci_dbc_do_handle_events(dbc);
@@ -800,7 +798,7 @@ static void xhci_dbc_handle_events(struct work_struct *work)
switch (evtr) {
case EVT_GSER:
- ret = xhci_dbc_tty_register_device(xhci);
+ ret = xhci_dbc_tty_register_device(dbc);
if (ret) {
dev_err(dbc->dev, "failed to alloc tty device\n");
break;
@@ -809,7 +807,7 @@ static void xhci_dbc_handle_events(struct work_struct *work)
dev_info(dbc->dev, "DbC now attached to /dev/ttyDBC0\n");
break;
case EVT_DISC:
- xhci_dbc_tty_unregister_device(xhci);
+ xhci_dbc_tty_unregister_device(dbc);
break;
case EVT_DONE:
break;
diff --git a/drivers/usb/host/xhci-dbgcap.h b/drivers/usb/host/xhci-dbgcap.h
index 7ca2f4ccc537..628f85f97dfe 100644
--- a/drivers/usb/host/xhci-dbgcap.h
+++ b/drivers/usb/host/xhci-dbgcap.h
@@ -198,8 +198,8 @@ int xhci_dbc_init(struct xhci_hcd *xhci);
void xhci_dbc_exit(struct xhci_hcd *xhci);
int xhci_dbc_tty_register_driver(struct xhci_hcd *xhci);
void xhci_dbc_tty_unregister_driver(void);
-int xhci_dbc_tty_register_device(struct xhci_hcd *xhci);
-void xhci_dbc_tty_unregister_device(struct xhci_hcd *xhci);
+int xhci_dbc_tty_register_device(struct xhci_dbc *dbc);
+void xhci_dbc_tty_unregister_device(struct xhci_dbc *dbc);
struct dbc_request *dbc_alloc_request(struct dbc_ep *dep, gfp_t gfp_flags);
void dbc_free_request(struct dbc_ep *dep, struct dbc_request *req);
int dbc_ep_queue(struct dbc_ep *dep, struct dbc_request *req, gfp_t gfp_flags);
diff --git a/drivers/usb/host/xhci-dbgtty.c b/drivers/usb/host/xhci-dbgtty.c
index 9a1d38442578..545e8cb0221a 100644
--- a/drivers/usb/host/xhci-dbgtty.c
+++ b/drivers/usb/host/xhci-dbgtty.c
@@ -440,11 +440,10 @@ xhci_dbc_tty_exit_port(struct dbc_port *port)
tty_port_destroy(&port->port);
}
-int xhci_dbc_tty_register_device(struct xhci_hcd *xhci)
+int xhci_dbc_tty_register_device(struct xhci_dbc *dbc)
{
int ret;
struct device *tty_dev;
- struct xhci_dbc *dbc = xhci->dbc;
struct dbc_port *port = &dbc->port;
xhci_dbc_tty_init_port(xhci, port);
@@ -484,14 +483,13 @@ int xhci_dbc_tty_register_device(struct xhci_hcd *xhci)
register_fail:
xhci_dbc_tty_exit_port(port);
- xhci_err(xhci, "can't register tty port, err %d\n", ret);
+ dev_err(dbc->dev, "can't register tty port, err %d\n", ret);
return ret;
}
-void xhci_dbc_tty_unregister_device(struct xhci_hcd *xhci)
+void xhci_dbc_tty_unregister_device(struct xhci_dbc *dbc)
{
- struct xhci_dbc *dbc = xhci->dbc;
struct dbc_port *port = &dbc->port;
tty_unregister_device(dbc_tty_driver, 0);
--
2.17.1
next prev parent reply other threads:[~2020-07-23 14:42 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-23 14:45 [PATCH 00/27] xhci features for usb-next Mathias Nyman
2020-07-23 14:45 ` [PATCH 01/27] xhci: Make debug message consistent with bus and port number Mathias Nyman
2020-07-23 14:45 ` [PATCH 02/27] xhci: dbc: Don't use generic xhci inc_deq() function for dbc Mathias Nyman
2020-07-23 14:45 ` [PATCH 03/27] xhci: Don't pass struct xhci_hcd pointer to xhci_link_seg() Mathias Nyman
2020-07-23 14:45 ` [PATCH 04/27] xhci: dbc: Don't use generic xhci erst allocation and free functions Mathias Nyman
2020-07-23 14:45 ` [PATCH 05/27] xhci: dbc: Remove dbc_dma_alloc_coherent() wrapper Mathias Nyman
2020-07-23 14:45 ` [PATCH 06/27] xhci: dbc: Remove dbc_dma_free_coherent() wrapper Mathias Nyman
2020-07-23 14:45 ` [PATCH 07/27] xhci: dbc: Add device pointer to dbc structure Mathias Nyman
2020-07-23 14:45 ` [PATCH 08/27] xhci: dbc: Use dev_info() and similar instead of xhci_info() Mathias Nyman
2020-07-23 14:45 ` [PATCH 09/27] xhci: dbc: Don't use xhci_write_64() as it takes xhci as a parameter Mathias Nyman
2020-07-23 14:45 ` [PATCH 10/27] xhci: dbc: Don't pass the xhci pointer as a parameter to xhci_dbc_init_context() Mathias Nyman
2020-07-23 14:45 ` [PATCH 11/27] xhci: dbc: Get the device pointer from dbc structure in dbc_ep_do_queue() Mathias Nyman
2020-07-23 14:45 ` [PATCH 12/27] xhci: dbc: Pass dbc pointer to endpoint init and exit functions Mathias Nyman
2020-07-23 14:45 ` [PATCH 13/27] xhci: dbc: Change to pass dbc pointer to xhci_do_dbc_stop() Mathias Nyman
2020-07-23 14:45 ` [PATCH 14/27] xhci: dbc: Pass dbc pointer to dbc_handle_xfer_event() instead of xhci_hcd pointer Mathias Nyman
2020-07-23 14:45 ` Mathias Nyman [this message]
2020-07-23 14:45 ` [PATCH 16/27] xhci: dbc: Pass dbc pointer to get_in/out_ep() helper functions to get endpoints Mathias Nyman
2020-07-23 14:45 ` [PATCH 17/27] xhci: dbc: Use dbc structure in the request completion instead of xhci_hcd Mathias Nyman
2020-07-23 14:45 ` [PATCH 18/27] xhci: dbc: Don't use generic xhci context allocation for dbc Mathias Nyman
2020-07-23 14:45 ` [PATCH 19/27] xhci: dbc: don't use generic xhci ring allocation functions " Mathias Nyman
2020-07-23 14:45 ` [PATCH 20/27] xhci: dbc: Pass dbc pointer to dbc memory init and cleanup functions Mathias Nyman
2020-07-23 14:45 ` [PATCH 21/27] xhci: dbc: Pass dbc pointer to dbc start and stop functions Mathias Nyman
2020-07-23 14:45 ` [PATCH 22/27] xhci: dbc: simplify dbc requests allocation and queueing Mathias Nyman
2020-07-23 14:45 ` [PATCH 23/27] xhci: dbc: remove endpoint pointers from dbc_port structure Mathias Nyman
2020-07-23 14:45 ` [PATCH 24/27] xhci: dbctty: split dbc tty driver registration and unregistration functions Mathias Nyman
2020-07-23 14:45 ` [PATCH 25/27] xhci: dbc: Add a operations structure to access driver functions Mathias Nyman
2020-07-23 14:45 ` [PATCH 26/27] xhci: dbgcap: remove dbc dependency on dbctty specific flag Mathias Nyman
2020-07-23 14:45 ` [PATCH 27/27] xhci: dbc: remove tty specific port structure from struct xhci_dbc Mathias Nyman
2020-07-23 15:04 ` [PATCH 00/27] xhci features for usb-next Greg KH
2020-07-23 18:47 ` Mathias Nyman
2020-07-24 7:06 ` Greg KH
2020-07-24 11:11 ` Mathias Nyman
2020-07-24 16:32 ` Greg KH
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