From: Andy Shevchenko <andy.shevchenko@gmail.com> To: chenyu56@huawei.com Cc: USB <linux-usb@vger.kernel.org>, devicetree <devicetree@vger.kernel.org>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, Suzhuangluan <suzhuangluan@hisilicon.com>, Kongfei <kongfei@hisilicon.com>, Felipe Balbi <balbi@kernel.org>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, John Stultz <john.stultz@linaro.org>, Wangbinghui <wangbinghui@hisilicon.com> Subject: Re: [PATCH v1 11/12] usb: gadget: Add configfs attribuite for controling match_existing_only Date: Mon, 3 Dec 2018 11:25:36 +0200 [thread overview] Message-ID: <CAHp75VcUQN_PuXDVkeR+jagTsUaOWLtytVt+f_eR+x2iw9B5-A@mail.gmail.com> (raw) In-Reply-To: <20181203034515.91412-12-chenyu56@huawei.com> On Mon, Dec 3, 2018 at 5:47 AM Yu Chen <chenyu56@huawei.com> wrote: > > Currently the "match_existing_only" of usb_gadget_driver in configfs is > set to one which is not flexible. > Dwc3 udc will be removed when usb core switch to host mode. This causes > failure of writing name of dwc3 udc to configfs's UDC attribuite. > To fix this we need to add a way to change the config of > "match_existing_only". > This patch adds a configfs attribuite for controling match_existing_only > which allow user to config "match_existing_only". > +static ssize_t gadget_driver_match_existing_only_store(struct config_item *item, > + const char *page, size_t len) > +{ > + struct usb_gadget_driver *gadget_driver = > + &(to_gadget_info(item)->composite.gadget_driver); It would be easier for reader to see two lines with two variables instead of this. > + bool match_existing_only; > + int ret; > + > + ret = kstrtobool(page, &match_existing_only); > + if (ret) > + return ret; > + > + if (match_existing_only) > + gadget_driver->match_existing_only = 1; > + else > + gadget_driver->match_existing_only = 0; gadget_driver->match_existing_only = match_existing_only; But the question rather why is it not direct parameter to kstrtobool? > + > + return len; > +} > + struct usb_gadget_driver *gadget_driver = > + &(to_gadget_info(item)->composite.gadget_driver); Make it neat. -- With Best Regards, Andy Shevchenko
WARNING: multiple messages have this Message-ID (diff)
From: Andy Shevchenko <andy.shevchenko@gmail.com> To: chenyu56@huawei.com Cc: USB <linux-usb@vger.kernel.org>, devicetree <devicetree@vger.kernel.org>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, Suzhuangluan <suzhuangluan@hisilicon.com>, Kongfei <kongfei@hisilicon.com>, Felipe Balbi <balbi@kernel.org>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, John Stultz <john.stultz@linaro.org>, Wangbinghui <wangbinghui@hisilicon.com> Subject: [v1,11/12] usb: gadget: Add configfs attribuite for controling match_existing_only Date: Mon, 3 Dec 2018 11:25:36 +0200 [thread overview] Message-ID: <CAHp75VcUQN_PuXDVkeR+jagTsUaOWLtytVt+f_eR+x2iw9B5-A@mail.gmail.com> (raw) On Mon, Dec 3, 2018 at 5:47 AM Yu Chen <chenyu56@huawei.com> wrote: > > Currently the "match_existing_only" of usb_gadget_driver in configfs is > set to one which is not flexible. > Dwc3 udc will be removed when usb core switch to host mode. This causes > failure of writing name of dwc3 udc to configfs's UDC attribuite. > To fix this we need to add a way to change the config of > "match_existing_only". > This patch adds a configfs attribuite for controling match_existing_only > which allow user to config "match_existing_only". > +static ssize_t gadget_driver_match_existing_only_store(struct config_item *item, > + const char *page, size_t len) > +{ > + struct usb_gadget_driver *gadget_driver = > + &(to_gadget_info(item)->composite.gadget_driver); It would be easier for reader to see two lines with two variables instead of this. > + bool match_existing_only; > + int ret; > + > + ret = kstrtobool(page, &match_existing_only); > + if (ret) > + return ret; > + > + if (match_existing_only) > + gadget_driver->match_existing_only = 1; > + else > + gadget_driver->match_existing_only = 0; gadget_driver->match_existing_only = match_existing_only; But the question rather why is it not direct parameter to kstrtobool? > + > + return len; > +} > + struct usb_gadget_driver *gadget_driver = > + &(to_gadget_info(item)->composite.gadget_driver); Make it neat.
next prev parent reply other threads:[~2018-12-03 9:25 UTC|newest] Thread overview: 130+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-12-03 3:45 [PATCH v1 00/12] Add support for usb on Hikey960 Yu Chen 2018-12-03 3:45 ` Yu Chen 2018-12-03 3:45 ` [PATCH v1 01/12] dt-bindings: usb: add support for dwc3 controller on HiSilicon SoCs Yu Chen 2018-12-03 3:45 ` [v1,01/12] " Yu Chen 2018-12-03 3:45 ` [PATCH v1 01/12] " Yu Chen 2018-12-03 8:35 ` Sergei Shtylyov 2018-12-03 8:35 ` [v1,01/12] " Sergei Shtylyov 2018-12-03 8:51 ` [PATCH v1 01/12] " Chen Yu 2018-12-03 8:51 ` [v1,01/12] " Yu Chen 2018-12-03 8:51 ` [PATCH v1 01/12] " Chen Yu 2018-12-03 8:59 ` Sergei Shtylyov 2018-12-03 8:59 ` [v1,01/12] " Sergei Shtylyov 2018-12-03 9:28 ` [PATCH v1 01/12] " Chen Yu 2018-12-03 9:28 ` [v1,01/12] " Yu Chen 2018-12-03 9:28 ` [PATCH v1 01/12] " Chen Yu 2018-12-19 14:09 ` Rob Herring 2018-12-19 14:09 ` [v1,01/12] " Rob Herring 2018-12-20 1:33 ` [PATCH v1 01/12] " Chen Yu 2018-12-20 1:33 ` [v1,01/12] " Yu Chen 2018-12-20 1:33 ` [PATCH v1 01/12] " Chen Yu 2018-12-20 6:46 ` Felipe Balbi 2018-12-20 6:46 ` [v1,01/12] " Felipe Balbi 2018-12-20 13:48 ` [PATCH v1 01/12] " Rob Herring 2018-12-20 13:48 ` [v1,01/12] " Rob Herring 2018-12-03 3:45 ` [PATCH v1 02/12] dt-bindings: phy: Add support for HiSilicon's hi3660 USB PHY Yu Chen 2018-12-03 3:45 ` [v1,02/12] " Yu Chen 2018-12-03 3:45 ` [PATCH v1 02/12] " Yu Chen 2018-12-19 14:14 ` Rob Herring 2018-12-19 14:14 ` [v1,02/12] " Rob Herring 2018-12-20 1:52 ` [PATCH v1 02/12] " Chen Yu 2018-12-20 1:52 ` [v1,02/12] " Yu Chen 2018-12-20 1:52 ` [PATCH v1 02/12] " Chen Yu 2018-12-03 3:45 ` [PATCH v1 03/12] dt-bindings: misc: Add bindings for HiSilicon usb hub and data role switch functionality on HiKey960 Yu Chen 2018-12-03 3:45 ` [v1,03/12] " Yu Chen 2018-12-03 3:45 ` [PATCH v1 03/12] " Yu Chen 2018-12-19 14:21 ` Rob Herring 2018-12-19 14:21 ` [v1,03/12] " Rob Herring 2018-12-20 2:02 ` [PATCH v1 03/12] " Chen Yu 2018-12-20 2:02 ` [v1,03/12] " Yu Chen 2018-12-20 2:02 ` [PATCH v1 03/12] " Chen Yu 2018-12-03 3:45 ` [PATCH v1 04/12] usb: dwc3: dwc3-hisi: Add code for dwc3 of Hisilicon Soc Platform Yu Chen 2018-12-03 3:45 ` [v1,04/12] " Yu Chen 2018-12-03 3:45 ` [PATCH v1 04/12] " Yu Chen 2018-12-03 8:12 ` Andy Shevchenko 2018-12-03 8:12 ` [v1,04/12] " Andy Shevchenko 2018-12-03 8:30 ` [PATCH v1 04/12] " Chen Yu 2018-12-03 8:30 ` [v1,04/12] " Yu Chen 2018-12-03 8:30 ` [PATCH v1 04/12] " Chen Yu 2018-12-03 3:45 ` [PATCH v1 05/12] usb: dwc3: Add two quirks for Hisilicon Kirin " Yu Chen 2018-12-03 3:45 ` [v1,05/12] " Yu Chen 2018-12-03 3:45 ` [PATCH v1 05/12] " Yu Chen 2018-12-03 8:02 ` Andy Shevchenko 2018-12-03 8:02 ` [v1,05/12] " Andy Shevchenko 2018-12-03 8:23 ` [PATCH v1 05/12] " Chen Yu 2018-12-03 8:23 ` [v1,05/12] " Yu Chen 2018-12-03 8:23 ` [PATCH v1 05/12] " Chen Yu 2018-12-03 3:45 ` [PATCH v1 06/12] phy: Add usb phy support for hi3660 Soc of Hisilicon Yu Chen 2018-12-03 3:45 ` [v1,06/12] " Yu Chen 2018-12-03 3:45 ` [PATCH v1 06/12] " Yu Chen 2018-12-03 8:14 ` Andy Shevchenko 2018-12-03 8:14 ` [v1,06/12] " Andy Shevchenko 2018-12-03 3:45 ` [PATCH v1 07/12] usb: roles: Find the usb role switch by also matching against the device node Yu Chen 2018-12-03 3:45 ` [v1,07/12] " Yu Chen 2018-12-03 3:45 ` [PATCH v1 07/12] " Yu Chen 2018-12-03 8:17 ` Andy Shevchenko 2018-12-03 8:17 ` [v1,07/12] " Andy Shevchenko 2018-12-03 12:25 ` [PATCH v1 07/12] " Heikki Krogerus 2018-12-03 12:25 ` [v1,07/12] " Heikki Krogerus 2019-01-21 8:36 ` [PATCH v1 07/12] " Chen Yu 2019-01-21 8:36 ` [v1,07/12] " Yu Chen 2019-01-21 8:36 ` [PATCH v1 07/12] " Chen Yu 2019-01-21 13:51 ` Heikki Krogerus 2019-01-21 13:51 ` [v1,07/12] " Heikki Krogerus 2019-01-25 12:35 ` [PATCH v1 07/12] " Heikki Krogerus 2019-01-25 12:35 ` [v1,07/12] " Heikki Krogerus 2018-12-03 3:45 ` [PATCH v1 08/12] usb: roles: Add usb role switch notifier Yu Chen 2018-12-03 3:45 ` [v1,08/12] " Yu Chen 2018-12-03 3:45 ` [PATCH v1 08/12] " Yu Chen 2018-12-03 12:38 ` Heikki Krogerus 2018-12-03 12:38 ` [v1,08/12] " Heikki Krogerus 2018-12-04 1:07 ` [PATCH v1 08/12] " Chen Yu 2018-12-04 1:07 ` [v1,08/12] " Yu Chen 2018-12-04 1:07 ` [PATCH v1 08/12] " Chen Yu 2018-12-03 3:45 ` [PATCH v1 09/12] usb: dwc3: Registering a role switch in the DRD code Yu Chen 2018-12-03 3:45 ` [v1,09/12] " Yu Chen 2018-12-03 3:45 ` [PATCH v1 09/12] " Yu Chen 2018-12-03 9:15 ` Andy Shevchenko 2018-12-03 9:15 ` [v1,09/12] " Andy Shevchenko 2018-12-03 9:30 ` [PATCH v1 09/12] " Chen Yu 2018-12-03 9:30 ` [v1,09/12] " Yu Chen 2018-12-03 9:30 ` [PATCH v1 09/12] " Chen Yu 2018-12-03 12:43 ` Heikki Krogerus 2018-12-03 12:43 ` [v1,09/12] " Heikki Krogerus 2018-12-04 10:54 ` [PATCH v1 09/12] " Heikki Krogerus 2018-12-04 10:54 ` [v1,09/12] " Heikki Krogerus 2018-12-05 0:56 ` [PATCH v1 09/12] " Chen Yu 2018-12-05 0:56 ` [v1,09/12] " Yu Chen 2018-12-05 0:56 ` [PATCH v1 09/12] " Chen Yu 2018-12-03 3:45 ` [PATCH v1 10/12] hikey960: Support usb functionality of Hikey960 Yu Chen 2018-12-03 3:45 ` [v1,10/12] " Yu Chen 2018-12-03 3:45 ` [PATCH v1 10/12] " Yu Chen 2018-12-03 9:23 ` Andy Shevchenko 2018-12-03 9:23 ` [v1,10/12] " Andy Shevchenko 2018-12-04 1:40 ` [PATCH v1 10/12] " Chen Yu 2018-12-04 1:40 ` [v1,10/12] " Yu Chen 2018-12-04 1:40 ` [PATCH v1 10/12] " Chen Yu 2018-12-04 17:47 ` Andy Shevchenko 2018-12-04 17:47 ` [v1,10/12] " Andy Shevchenko 2018-12-05 1:57 ` [PATCH v1 10/12] " Chen Yu 2018-12-05 1:57 ` [v1,10/12] " Yu Chen 2018-12-05 1:57 ` [PATCH v1 10/12] " Chen Yu 2018-12-05 8:44 ` Andy Shevchenko 2018-12-05 8:44 ` [v1,10/12] " Andy Shevchenko 2018-12-03 3:45 ` [PATCH v1 11/12] usb: gadget: Add configfs attribuite for controling match_existing_only Yu Chen 2018-12-03 3:45 ` [v1,11/12] " Yu Chen 2018-12-03 3:45 ` [PATCH v1 11/12] " Yu Chen 2018-12-03 9:25 ` Andy Shevchenko [this message] 2018-12-03 9:25 ` [v1,11/12] " Andy Shevchenko 2018-12-04 1:22 ` [PATCH v1 11/12] " Chen Yu 2018-12-04 1:22 ` [v1,11/12] " Yu Chen 2018-12-04 1:22 ` [PATCH v1 11/12] " Chen Yu 2018-12-03 9:53 ` Krzysztof Opasiak 2018-12-03 9:53 ` [v1,11/12] " Krzysztof Opasiak 2018-12-03 3:45 ` [PATCH v1 12/12] dts: hi3660: Add support for usb on Hikey960 Yu Chen 2018-12-03 3:45 ` Yu Chen 2018-12-03 3:45 ` [v1,12/12] " Yu Chen 2018-12-03 3:45 ` [PATCH v1 12/12] " Yu Chen 2018-12-04 12:45 ` Heikki Krogerus 2018-12-04 12:45 ` Heikki Krogerus 2018-12-04 12:45 ` [v1,12/12] " Heikki Krogerus
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