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    SubjectRe: checkpatch WARNING: patch prefix 'b' exists, appears to be a -p0 patch
    On Tue, 2011-10-18 at 16:44 -0700, David Rientjes wrote:
    > On Tue, 18 Oct 2011, Jonathan Cameron wrote:
    > > This started happening when I run checkpatch on pretty much anything.
    > > triggered by the b in this snipped for example
    > > diff --git a/arch/arm/mach-pxa/stargate2.c b/arch/arm/mach-pxa/stargate2.c
    > > index 3f8d0af..62dc2a8 100644
    > > --- a/arch/arm/mach-pxa/stargate2.c
    > > +++ b/arch/arm/mach-pxa/stargate2.c
    > > @@ -54,6 +54,8 @@
    > > #include <linux/mfd/da903x.h>
    > > Anyone else seeing this or have a clue what the heck is going on?

    It's done this since:

    $ git log -1 1e85572697b348b1a126520349a29654f2ae6a12
    commit 1e85572697b348b1a126520349a29654f2ae6a12
    Author: Wolfram Sang <>
    Date: Tue Jan 6 14:41:24 2009 -0800

    checkpatch: Add warning for p0-patches

    Some people work internally with -p0-patches which has the danger that one
    forgets to convert them to -p1 before mainlining. Bitten myself and seen
    p0-patches in mailing lists occasionally, this patch adds a warning to in case a patch is -p0. If you really want, you can fool
    this check to generate false positives, this is why it just spits a
    warning. Making the check 100% proof is trickier than it looks, so let's
    start with a version which catches the cases of real use.

    [ update message language, handle null prefix, add tests]
    Signed-off-by: Wolfram Sang <>
    Signed-off-by: Andy Whitcroft <>
    Signed-off-by: Andrew Morton <>
    Signed-off-by: Linus Torvalds <>

    I've always ignored it.

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      Last update: 2011-10-19 02:03    [W:0.021 / U:5.680 seconds]
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