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SubjectRe: Fix compile breakage with kref.h
On Tue, Jan 17, 2012 at 09:14:05PM +0000, James Bottomley wrote:
> This set of build failures just started appearing on parisc:
> In file included from drivers/input/serio/serio_raw.c:12:
> include/linux/kref.h: In function 'kref_get':
> include/linux/kref.h:40: error: 'TAINT_WARN' undeclared (first use in this function)
> include/linux/kref.h:40: error: (Each undeclared identifier is reported only once
> include/linux/kref.h:40: error: for each function it appears in.)
> include/linux/kref.h: In function 'kref_sub':
> include/linux/kref.h:65: error: 'TAINT_WARN' undeclared (first use in this function)
> It happens because TAINT_WARN is defined in kernel.h and this particular
> compile doesn't seem to include it (no idea why it's just
> manifesting ... probably some #include file untangling exposed it). Fix
> by adding #include <linux/kernel.h> to linux/kref.h

Does adding <linux/bug.h> fix it instead? We are using WARN_ON() here.
Hm, but that needs kernel.h as well, ugh, what a mess.

> Signed-off-by: James Bottomley <>

Acked-by: Greg Kroah-Hartman <>

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