Re: [dpdk-stable] [PATCH] devbind: check for lspci

[Ferruh Yigit <ferruh.yigit@intel.com>]

On 11/7/2018 4:30 PM, Burakov, Anatoly wrote:
> On 07-Nov-18 4:01 PM, Ferruh Yigit wrote:
>> On 11/7/2018 1:56 PM, Anatoly Burakov wrote:
>>> On some distributions (such as CentOS 7) lspci may not be installed
>>> by default, causing exceptions which are difficult to interpret.
>>>
>>> Fix devbind script to check if lspci is installed at script startup.
>>
>> I guess we need lspci for `--status`, bind/unbind can be done without `lspci`,
>> what about adding check only display path?
> 
> IMO it's not worth respinning over that minor detail, but if you feel 
> strongly about it - sure, i can do a v2 with this on display path only :)

No strong opinion, was just an idea, OK to go as it is if you prefer, not having
lspci installed but still want to use devbind may not be common usecase..

> 
>>
>>>
>>> Cc: stable@dpdk.org
>>>
>>> Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
>>> ---
>>>   usertools/dpdk-devbind.py | 7 +++++++
>>>   1 file changed, 7 insertions(+)
>>>
>>> diff --git a/usertools/dpdk-devbind.py b/usertools/dpdk-devbind.py
>>> index 7d564634c..74bf514c0 100755
>>> --- a/usertools/dpdk-devbind.py
>>> +++ b/usertools/dpdk-devbind.py
>>> @@ -655,6 +655,13 @@ def do_arg_actions():
>>>   
>>>   def main():
>>>       '''program main function'''
>>> +    # check if lspci is installed, suppress any output
>>> +    with open(os.devnull, 'w') as devnull:
>>> +        ret = subprocess.call(['which', 'lspci'],
>>> +                              stdout=devnull, stderr=devnull)
>>> +        if ret != 0:
>>> +            print("'lspci' not found - please install 'lspci'")
>>> +            sys.exit(1)
>>>       parse_args()
>>>       check_modules()
>>>       clear_data()
>>>
>>
>>
> 
>