Re: [PATCH] This patch to profile.c fixes a few errors reported bycheckpatch.pl

From: Ingo Molnar
Date: Fri Jan 04 2008 - 08:23:56 EST



* Paolo Ciarrocchi <paolo.ciarrocchi@xxxxxxxxx> wrote:

> > i.e. take the implicit assignment out of the condition. (it's easy
> > to mistake it for '==' while reviewing the code and forgetting about
> > the assignment's side-effect)
>
> OK, thanks.
>
> Is the following correct?
>
> Before:
> if (!(entry = create_proc_entry("prof_cpu_mask", 0600, root_irq_dir)))
>
> After:
> entry = create_proc_entry("prof_cpu_mask", 0600, root_irq_dir)
> if (!entry)
>
> BTW, how can i compile only the profile.c file?

make kernel/profile.o

> I would like to verify that my changes (now I'm at total: 2 errors, 1
> warnings, 599 lines checked) doesn't impact on the compiled code?

check out:

http://people.redhat.com/mingo/misc/q-size-obj-compare

which does a size and md5 comparison. (assuming your patch is in a quilt
queue) But if you reorder symbols (due to the EXPORT_SYMBOL moving) the
md5 might differ. (but size should still be the same)

Ingo
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