linux-kernel - Re: [PATCH] firmware: dmi_scan: Always show system identification string

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Date:   Tue, 13 Dec 2016 14:25:05 +0000
From:   Ard Biesheuvel <ard.biesheuvel@...aro.org>
To:     Kefeng Wang <wangkefeng.wang@...wei.com>
Cc:     Jean Delvare <jdelvare@...e.com>,
        Mark Rutland <mark.rutland@....com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] firmware: dmi_scan: Always show system identification string

On 12 December 2016 at 01:51, Kefeng Wang <wangkefeng.wang@...wei.com> wrote:
>
>
> On 2016/12/9 22:55, Ard Biesheuvel wrote:
>> On 9 December 2016 at 06:54, Kefeng Wang <wangkefeng.wang@...wei.com> wrote:
>>> Let's keep consistent when print dmi_ids_string between SMBIOS 2.x
>>> and SMBIOS 3.x, and always show the system identification string,
>>> like Vendor, Product/Board name and BIOS infos.
>>>
>>
>> Are you saying the printk(KERN_DEBUG) was inconsistent with the
>> pr_debug() before?
>
> Yes, found it when check the boot dmesg on qemu, there is no print using pr_debug
> with defconfig on ARM64( smbios3 present), but could shown with printk(KERN_DEBUG.
>

That's interesting. I would assume pr_debug and printk(KERN_DEBUG) to
behave identically ...

>>
>>
>>> Signed-off-by: Kefeng Wang <wangkefeng.wang@...wei.com>
>>> ---
>>>  drivers/firmware/dmi_scan.c | 4 ++--
>>>  1 file changed, 2 insertions(+), 2 deletions(-)
>>>
>>> diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c
>>> index 88bebe1..54be60e 100644
>>> --- a/drivers/firmware/dmi_scan.c
>>> +++ b/drivers/firmware/dmi_scan.c
>>> @@ -560,7 +560,7 @@ static int __init dmi_present(const u8 *buf)
>>>                                         dmi_ver >> 16, (dmi_ver >> 8) & 0xFF);
>>>                         }
>>>                         dmi_format_ids(dmi_ids_string, sizeof(dmi_ids_string));
>>> -                       printk(KERN_DEBUG "DMI: %s\n", dmi_ids_string);
>>> +                       pr_info("DMI: %s\n", dmi_ids_string);
>>>                         return 0;
>>>                 }
>>>         }
>>> @@ -588,7 +588,7 @@ static int __init dmi_smbios3_present(const u8 *buf)
>>>                                 dmi_ver >> 16, (dmi_ver >> 8) & 0xFF,
>>>                                 dmi_ver & 0xFF);
>>>                         dmi_format_ids(dmi_ids_string, sizeof(dmi_ids_string));
>>> -                       pr_debug("DMI: %s\n", dmi_ids_string);
>>> +                       pr_info("DMI: %s\n", dmi_ids_string);
>>>                         return 0;
>>>                 }
>>>         }
>>> --
>>> 1.7.12.4
>>>
>>
>> .
>>
>