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SubjectRe: [tpmdd-devel] [PATCH] tpm: fix a sparse error in tpm-sysfs.c
On Tue, Jan 31, 2017 at 10:37:14PM +0200, Jarkko Sakkinen wrote:
> On Tue, Jan 31, 2017 at 01:43:59PM -0500, Stefan Berger wrote:
> > drivers/char/tpm/tpm-sysfs.c:161:25: warning: expression using sizeof bool
> >
> > Fixes: c659af78eb7b ("tpm: Check size of response before accessing data")
> > Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
> > ---
> > drivers/char/tpm/tpm.h | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
> > index bff37be..6b4e7aa 100644
> > --- a/drivers/char/tpm/tpm.h
> > +++ b/drivers/char/tpm/tpm.h
> > @@ -281,7 +281,7 @@ struct permanent_flags_t {
> > typedef union {
> > struct permanent_flags_t perm_flags;
> > struct stclear_flags_t stclear_flags;
> > - bool owned;
> > + __u8 owned;
> > __be32 num_pcrs;
> > struct tpm_version_t tpm_version;
> > struct tpm_version_1_2_t tpm_version_1_2;
> > --
> > 2.4.3
>
> A better description would be:
>
> The field owned has wrong sized type. This commit fixes the
> issue.
>
> ?
>
> /Jarkko

And doesn't owned print invalid results on a big endian system
i.e. 0x1000000? The commit message needs to be rewritten to capture
the problem.

/Jarkko

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