unexpected non-allocatable section

[Sean MacLennan]

b614a697dc17dff82f140d72d21a095f810fa7fb is first bad commit
commit b614a697dc17dff82f140d72d21a095f810fa7fb
Author: Anders Kaseorg <andersk at mit.edu>
Date:   Thu Apr 23 16:49:33 2009 -0400

    kbuild, modpost: Check the section flags, to catch missing "ax"/"aw"
    
    When you put
      .section ".foo"
    in an assembly file instead of
      .section "foo", "ax"
    , one of the possible symptoms is that modpost will see an
    ld-generated section name ".foo.1" in section_rel() or section_rela().
    But this heuristic has two problems: it will miss a bad section that
    has no relocations, and it will incorrectly flag many gcc-generated
    sections as bad when compiling with -ffunction-sections
    -fdata-sections.
    
    On mips it fixes a lot of bogus warnings with gcc 4.4.0 lije this one:
    WARNING: crypto/cryptd.o (.text.T.349): unexpected section name.
    
    So instead of checking whether the section name matches a particular
    pattern, we directly check for a missing SHF_ALLOC in the section
    flags.
    
    Signed-off-by: Anders Kaseorg <andersk at mit.edu>
    Tested-by: Ralf Baechle <ralf at linux-mips.org>
    Signed-off-by: Sam Ravnborg <sam at ravnborg.org>

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