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

From: Jarkko Sakkinen
Date: Tue Jan 31 2017 - 15:37:38 EST


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@xxxxxxxxxxxxxxxxxx>
> ---
> 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