linux-kernel - Aw: Re: [PATCH] tpm, tpm_infineon: remove useless snprintf() calls

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Date:   Thu, 25 May 2017 07:29:05 +0200
From:   "Peter Huewe" <PeterHuewe@....de>
To:     "Jarkko Sakkinen" <jarkko.sakkinen@...ux.intel.com>
Cc:     tpmdd-devel@...ts.sourceforge.net, jmorris@...ei.org,
        linux-security-module@...r.kernel.org,
        "Marcel Selhorst" <tpmdd@...horst.net>,
        "Jason Gunthorpe" <jgunthorpe@...idianresearch.com>,
        "open list" <linux-kernel@...r.kernel.org>
Subject: Aw: Re: [PATCH] tpm, tpm_infineon: remove useless snprintf() calls

> The memory copy from rodata to stack is useless.
>
> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>

After review, yes that should work.
Reviewed-by: Peter Huewe <peterhuewe@....de>

> ---
> drivers/char/tpm/tpm_infineon.c | 8 ++++----
> 1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/char/tpm/tpm_infineon.c b/drivers/char/tpm/tpm_infineon.c
> index e3cf9f3545c5..3b1b9f9322d5 100644
> --- a/drivers/char/tpm/tpm_infineon.c
> +++ b/drivers/char/tpm/tpm_infineon.c
> @@ -397,7 +397,7 @@ static int tpm_inf_pnp_probe(struct pnp_dev *dev,
> int vendorid[2];
> int version[2];
> int productid[2];
> - char chipname[20];
> + const char *chipname;
> struct tpm_chip *chip;
>
> /* read IO-ports through PnP */
> @@ -488,13 +488,13 @@ static int tpm_inf_pnp_probe(struct pnp_dev *dev,
>
> switch ((productid[0] << 8) | productid[1]) {
> case 6:
> - snprintf(chipname, sizeof(chipname), " (SLD 9630 TT 1.1)");
> + chipname = " (SLD 9630 TT 1.1)";
> break;
> case 11:
> - snprintf(chipname, sizeof(chipname), " (SLB 9635 TT 1.2)");
> + chipname = " (SLB 9635 TT 1.2)";
> break;
> default:
> - snprintf(chipname, sizeof(chipname), " (unknown chip)");
> + chipname = " (unknown chip)";
> break;
> }
>
> --
> 2.11.0
>