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Message-ID: <54f43b58-4986-f2c3-7488-ecaf150b1e79@fujitsu.com>
Date: Wed, 23 Aug 2023 06:25:24 +0000
From: "Zhijian Li (Fujitsu)" <lizhijian@...itsu.com>
To: Zhu Yanjun <yanjun.zhu@...ux.dev>,
"linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>
CC: "zyjzyj2000@...il.com" <zyjzyj2000@...il.com>,
"jgg@...pe.ca" <jgg@...pe.ca>, "leon@...nel.org" <leon@...nel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"rpearsonhpe@...il.com" <rpearsonhpe@...il.com>
Subject: Re: [PATCH 1/2] RDMA/rxe: add missing newline to rxe_set_mtu message
On 23/08/2023 14:12, Zhu Yanjun wrote:
> 在 2023/8/23 10:13, Li Zhijian 写道:
>> A newline help flushing message out.
>
> rxe_info_dev will finally call printk to output information.
>
> In this link https://github.com/torvalds/linux/blob/master/Documentation/core-api/printk-basics.rst,
> "
> All printk() messages are printed to the kernel log buffer, which is a ring buffer exported to userspace through /dev/kmsg. The usual way to read it is using dmesg.
> "
> Do you mean that a new line will help the kernel log buffer flush message out?
Yeah, the message will be buffered until it is full or it meets a newline.
>
> Zhu Yanjun
>>
>> Signed-off-by: Li Zhijian <lizhijian@...itsu.com>
>> ---
>> drivers/infiniband/sw/rxe/rxe.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/infiniband/sw/rxe/rxe.c b/drivers/infiniband/sw/rxe/rxe.c
>> index 54c723a6edda..cb2c0d54aae1 100644
>> --- a/drivers/infiniband/sw/rxe/rxe.c
>> +++ b/drivers/infiniband/sw/rxe/rxe.c
>> @@ -161,7 +161,7 @@ void rxe_set_mtu(struct rxe_dev *rxe, unsigned int ndev_mtu)
>> port->attr.active_mtu = mtu;
>> port->mtu_cap = ib_mtu_enum_to_int(mtu);
>> - rxe_info_dev(rxe, "Set mtu to %d", port->mtu_cap);
>> + rxe_info_dev(rxe, "Set mtu to %d\n", port->mtu_cap);
>> }
>> /* called by ifc layer to create new rxe device.
>
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