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Message-ID: <20150713015235.GB27710@shlinux2>
Date: Mon, 13 Jul 2015 09:52:36 +0800
From: Peter Chen <peter.chen@...escale.com>
To: Roger Quadros <rogerq@...com>
CC: <stern@...land.harvard.edu>, <balbi@...com>,
<gregkh@...uxfoundation.org>, <dan.j.williams@...el.com>,
<jun.li@...escale.com>, <mathias.nyman@...ux.intel.com>,
<tony@...mide.com>, <Joao.Pinto@...opsys.com>,
<linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<linux-omap@...r.kernel.org>
Subject: Re: [PATCH v3 03/11] usb: otg-fsm: Prevent build warning "VDBG"
redefined
On Wed, Jul 08, 2015 at 01:19:29PM +0300, Roger Quadros wrote:
> If usb/otg-fsm.h and usb/composite.h are included together
> then it results in the build warning [1].
>
> Prevent that by using dev_vdbg() instead.
>
> Also get rid of MPC_LOC which doesn't seem to be used
> by anyone.
>
> [1] - warning fixed by this patch:
>
> In file included from drivers/usb/dwc3/core.h:33,
> from drivers/usb/dwc3/ep0.c:33:
> include/linux/usb/otg-fsm.h:30:1: warning: "VDBG" redefined
> In file included from drivers/usb/dwc3/ep0.c:31:
> include/linux/usb/composite.h:615:1: warning: this is the location
> of the previous definition
>
> Signed-off-by: Roger Quadros <rogerq@...com>
> ---
> drivers/usb/chipidea/otg_fsm.c | 1 +
> drivers/usb/common/usb-otg-fsm.c | 12 +++++++-----
> drivers/usb/phy/phy-fsl-usb.c | 1 +
> include/linux/usb/otg-fsm.h | 19 ++++---------------
> 4 files changed, 13 insertions(+), 20 deletions(-)
>
> diff --git a/drivers/usb/chipidea/otg_fsm.c b/drivers/usb/chipidea/otg_fsm.c
> index 19d655a..6e67f94 100644
> --- a/drivers/usb/chipidea/otg_fsm.c
> +++ b/drivers/usb/chipidea/otg_fsm.c
> @@ -777,6 +777,7 @@ int ci_hdrc_otg_fsm_init(struct ci_hdrc *ci)
> ci->fsm.id = hw_read_otgsc(ci, OTGSC_ID) ? 1 : 0;
> ci->fsm.otg->state = OTG_STATE_UNDEFINED;
> ci->fsm.ops = &ci_otg_ops;
> + ci->fsm.dev = ci->dev;
>
> mutex_init(&ci->fsm.lock);
>
> diff --git a/drivers/usb/common/usb-otg-fsm.c b/drivers/usb/common/usb-otg-fsm.c
> index 42c6376..1873eb3 100644
> --- a/drivers/usb/common/usb-otg-fsm.c
> +++ b/drivers/usb/common/usb-otg-fsm.c
> @@ -36,8 +36,9 @@ static int otg_set_protocol(struct otg_fsm *fsm, int protocol)
> int ret = 0;
>
> if (fsm->protocol != protocol) {
> - VDBG("Changing role fsm->protocol= %d; new protocol= %d\n",
> - fsm->protocol, protocol);
> + dev_vdbg(fsm->dev,
> + "Changing role fsm->protocol= %d; new protocol= %d\n",
> + fsm->protocol, protocol);
> /* stop old protocol */
> if (fsm->protocol == PROTO_HOST)
> ret = otg_start_host(fsm, 0);
> @@ -124,7 +125,7 @@ static int otg_set_state(struct otg_fsm *fsm, enum usb_otg_state new_state)
> fsm->state_changed = 1;
> if (fsm->otg->state == new_state)
> return 0;
> - VDBG("Set state: %s\n", usb_otg_state_string(new_state));
> + dev_vdbg(fsm->dev, "Set state: %s\n", usb_otg_state_string(new_state));
> otg_leave_state(fsm, fsm->otg->state);
> switch (new_state) {
> case OTG_STATE_B_IDLE:
> @@ -251,7 +252,7 @@ int otg_statemachine(struct otg_fsm *fsm)
>
> switch (state) {
> case OTG_STATE_UNDEFINED:
> - VDBG("fsm->id = %d\n", fsm->id);
> + dev_vdbg(fsm->dev, "fsm->id = %d\n", fsm->id);
> if (fsm->id)
> otg_set_state(fsm, OTG_STATE_B_IDLE);
> else
> @@ -359,7 +360,8 @@ int otg_statemachine(struct otg_fsm *fsm)
> }
> mutex_unlock(&fsm->lock);
>
> - VDBG("quit statemachine, changed = %d\n", fsm->state_changed);
> + dev_vdbg(fsm->dev, "quit statemachine, changed = %d\n",
> + fsm->state_changed);
> return fsm->state_changed;
> }
> EXPORT_SYMBOL_GPL(otg_statemachine);
> diff --git a/drivers/usb/phy/phy-fsl-usb.c b/drivers/usb/phy/phy-fsl-usb.c
> index 94eb292..ee3f2c2 100644
> --- a/drivers/usb/phy/phy-fsl-usb.c
> +++ b/drivers/usb/phy/phy-fsl-usb.c
> @@ -817,6 +817,7 @@ static int fsl_otg_conf(struct platform_device *pdev)
>
> /* Set OTG state machine operations */
> fsl_otg_tc->fsm.ops = &fsl_otg_ops;
> + fsl_otg_tc->fsm.dev = &pdev->dev;
>
> /* initialize the otg structure */
> fsl_otg_tc->phy.label = DRIVER_DESC;
> diff --git a/include/linux/usb/otg-fsm.h b/include/linux/usb/otg-fsm.h
> index 243274f..c631dde 100644
> --- a/include/linux/usb/otg-fsm.h
> +++ b/include/linux/usb/otg-fsm.h
> @@ -18,24 +18,10 @@
> #ifndef __LINUX_USB_OTG_FSM_H
> #define __LINUX_USB_OTG_FSM_H
>
> +#include <linux/device.h>
> #include <linux/mutex.h>
> #include <linux/errno.h>
>
> -#undef VERBOSE
> -
> -#ifdef VERBOSE
> -#define VDBG(fmt, args...) pr_debug("[%s] " fmt , \
> - __func__, ## args)
> -#else
> -#define VDBG(stuff...) do {} while (0)
> -#endif
> -
> -#ifdef VERBOSE
> -#define MPC_LOC printk("Current Location [%s]:[%d]\n", __FILE__, __LINE__)
> -#else
> -#define MPC_LOC do {} while (0)
> -#endif
> -
> #define PROTO_UNDEF (0)
> #define PROTO_HOST (1)
> #define PROTO_GADGET (2)
> @@ -195,6 +181,9 @@ struct otg_fsm {
> int protocol;
> struct mutex lock;
> bool state_changed;
> +
> + /* for debug prints */
> + struct device *dev;
> };
>
> struct otg_fsm_ops {
> --
> 2.1.4
>
Acked-by: Peter Chen <peter.chen@...escale.com>
--
Best Regards,
Peter Chen
--
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