Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1571311

Re: [tpmdd-devel] [PATCH] tpm: fix a sparse error in tpm-sysfs.c

From Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Newsgroups linux.kernel
Subject Re: [tpmdd-devel] [PATCH] tpm: fix a sparse error in tpm-sysfs.c
Date 2017-02-01 09:10 +0100
Message-ID <t5Y9j-3lP-9@gated-at.bofh.it> (permalink)
References <t5NnA-5bA-23@gated-at.bofh.it> <t5NnA-5bA-21@gated-at.bofh.it>
Organization Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo

Show all headers | View raw


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

Back to linux.kernel | Previous | NextPrevious in thread | Next in thread | Find similar | Unroll thread


Thread

Re: [PATCH] tpm: fix a sparse error in tpm-sysfs.c Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-01-31 21:40 +0100
  Re: [tpmdd-devel] [PATCH] tpm: fix a sparse error in tpm-sysfs.c Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-02-01 09:10 +0100
    Re: [tpmdd-devel] [PATCH] tpm: fix a sparse error in tpm-sysfs.c Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-02-01 12:20 +0100
      Re: [tpmdd-devel] [PATCH] tpm: fix a sparse error in tpm-sysfs.c Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-02-01 13:10 +0100

csiph-web