Re: [PATCH v6 2/3] greybus: Add BeaglePlay Linux Driver

From: kernel test robot
Date: Tue Oct 03 2023 - 03:40:57 EST


Hi Ayush,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 6269320850097903b30be8f07a5c61d9f7592393]

url: https://github.com/intel-lab-lkp/linux/commits/Ayush-Singh/dt-bindings-Add-beaglecc1352/20231003-031225
base: 6269320850097903b30be8f07a5c61d9f7592393
patch link: https://lore.kernel.org/r/20231002182454.211165-3-ayushdevel1325%40gmail.com
patch subject: [PATCH v6 2/3] greybus: Add BeaglePlay Linux Driver
config: sh-allmodconfig (https://download.01.org/0day-ci/archive/20231003/202310031521.Iq3S1RE9-lkp@xxxxxxxxx/config)
compiler: sh4-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231003/202310031521.Iq3S1RE9-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202310031521.Iq3S1RE9-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

>> drivers/greybus/gb-beagleplay.c:45: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
* BeaglePlay Greybus driver
drivers/greybus/gb-beagleplay.c:78: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
* Structure to represent part of HDCL frame payload data.
drivers/greybus/gb-beagleplay.c:107: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
* Consume HDLC Buffer. This function assumes that consumer lock has been acquired.
drivers/greybus/gb-beagleplay.c:127: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
* Queue HDLC data for sending. This function assumes that producer lock as been acquired.


vim +45 drivers/greybus/gb-beagleplay.c

43
44 /**
> 45 * BeaglePlay Greybus driver
46 *
47 * @sd: underlying serdev device
48 *
49 * @gb_hd: greybus host device of this driver
50 *
51 * @tx_work: hdlc transmit work
52 * @tx_producer_lock: hdlc transmit data producer lock. acquired when appending data to buffer.
53 * @tx_consumer_lock: hdlc transmit data consumer lock. acquired when sending data over uart.
54 * @tx_circ_buf: hdlc transmit circular buffer.
55 * @tx_crc: hdlc transmit crc-ccitt fcs
56 *
57 * @rx_buffer_len: length of receive buffer filled.
58 * @rx_buffer: hdlc frame receive buffer
59 * @rx_in_esc: hdlc rx flag to indicate ESC frame
60 */
61 struct gb_beagleplay {
62 struct serdev_device *sd;
63
64 struct gb_host_device *gb_hd;
65
66 struct work_struct tx_work;
67 spinlock_t tx_producer_lock;
68 spinlock_t tx_consumer_lock;
69 struct circ_buf tx_circ_buf;
70 u16 tx_crc;
71
72 u16 rx_buffer_len;
73 bool rx_in_esc;
74 u8 rx_buffer[MAX_RX_HDLC];
75 };
76

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