linux-kernel - Re: [PATCH] ver_linux: module-init-tools.patch

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Date:	Fri, 2 Oct 2015 16:14:29 -0700
From:	Jim Davis <jim.epost@...il.com>
To:	Alexander Kapshuk <alexander.kapshuk@...il.com>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ver_linux: module-init-tools.patch

On Fri, Oct 2, 2015 at 1:57 PM, Alexander Kapshuk
<alexander.kapshuk@...il.com> wrote:
> On Fri, Oct 2, 2015 at 11:22 PM, Alexander Kapshuk
> <alexander.kapshuk@...il.com> wrote:
>> On Fri, Oct 2, 2015 at 10:45 PM, Jim Davis <jim.epost@...il.com> wrote:
>>> On Fri, Oct 2, 2015 at 12:35 PM, Jim Davis <jim.epost@...il.com> wrote:
>>>> On Fri, Oct 2, 2015 at 12:03 PM, Alexander Kapshuk
>>>>
>>>>>>> +depmod=`whereis depmod | awk '{print $2}'`
>>>>>>
>>>
>>>> I suspect it'll be hard to come up with something that's 100%
>>>> foolproof and respects user's choices.  Sticking with searching the
>>>> user's $PATH at least won't lead to surprises about which program is
>>>> being run...
>>>
>>> Though looking back at your patch, what might work is to look first
>>> for depmod in the user's $PATH and then try whereis only if that
>>> fails.  I'm not convinced that's much better than just searching
>>> $PATH, but that at least would go with the user's preference first.
>>>
>>> --
>>> Jim
>>
>> Seems like the way to go. Thanks.
>>
>> I'll resubmit this and the other patches tomorrow with this
>> consideration in mind.
>
> What do you think of this?
>
> which depmod >/dev/null 2>&1 && depmod=depmod ||
> depmod=`whereis depmod | awk '{print $2}'`
>
> test -n "$depmod" -a -x "$depmod" &&
> $depmod -V 2>&1 |
> sed '
>     /[0-9]$/!d
>     s/[^0-9\.]//g
>     s/^/module-init-tools\t/
> '

Looks good, thanks.
-- 
Jim
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