[PATCH 17/26] kbuild: Fix genksyms handling of DEFINE_PER_CPU(struct foo_s *, bar);

[Sam Ravnborg]

From: Robin Holt <holt@xxxxxxx>
Date: 1135129550 -0600

This is a one-line change to parse.y.
To take advantage of this the scripts/genksyms/*_shipped files needs to
be rebuild - this is the next patch.

When a .c file contains:
DEFINE_PER_CPU(struct foo_s *, bar);

the .cpp output looks like:
__attribute__((__section__(".data.percpu"))) __typeof__(struct foo_s *) per_cpu__bar;

With the existing parse.y, the value inside the paranthesis of
__typeof__() does not evaluate as a type_specifier and therefore
per_cpu__bar does not get assigned a type for genksyms which results in
the EXPORT_PER_CPU_SYMBOL() not generating a CRC value.

I have compared the Modules.symvers with and without this
patch and for ia64's defconfig, the only change is:
Before 0x00000000    per_cpu____sn_nodepda   vmlinux
After  0x9d3f3faa    per_cpu____sn_nodepda   vmlinux

per_cpu____sn_nodepda was the original source of my problems.

Signed-off-by: Robin Holt <holt@xxxxxxx>
Signed-off-by: Sam Ravnborg <sam@xxxxxxxxxxxx>

---

 scripts/genksyms/parse.y |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

a89a0a2354ae666612968e254d650bfd04f11eb6
diff --git a/scripts/genksyms/parse.y b/scripts/genksyms/parse.y
index 0990437..ca04c94 100644
--- a/scripts/genksyms/parse.y
+++ b/scripts/genksyms/parse.y
@@ -197,6 +197,7 @@ storage_class_specifier:
 type_specifier:
 	simple_type_specifier
 	| cvar_qualifier
+	| TYPEOF_KEYW '(' decl_specifier_seq '*' ')'
 	| TYPEOF_KEYW '(' decl_specifier_seq ')'
 
 	/* References to s/u/e's defined elsewhere.  Rearrange things
-- 
1.0.6

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