On Thu, 4 Apr 2024, David E. Box wrote:
> Use printf width specifier to set the display length of encoded feature
> names.
>
> Signed-off-by: David E. Box <david.e.box@xxxxxxxxxxxxxxx>
> Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@xxxxxxxxxxxxxxx>
> ---
>
> V3 - Add FEAT_LEN #def
>
> V2 - Split of V1 patch 7
>
> tools/arch/x86/intel_sdsi/intel_sdsi.c | 13 ++++++-------
> 1 file changed, 6 insertions(+), 7 deletions(-)
>
> diff --git a/tools/arch/x86/intel_sdsi/intel_sdsi.c b/tools/arch/x86/intel_sdsi/intel_sdsi.c
> index 45bc69e6718e..0c9670ba1f15 100644
> --- a/tools/arch/x86/intel_sdsi/intel_sdsi.c
> +++ b/tools/arch/x86/intel_sdsi/intel_sdsi.c
> @@ -43,6 +43,7 @@
> #define METER_CERT_MAX_SIZE 4096
> #define STATE_MAX_NUM_LICENSES 16
> #define STATE_MAX_NUM_IN_BUNDLE (uint32_t)8
> +#define FEAT_LEN 4
>
> #define __round_mask(x, y) ((__typeof__(x))((y) - 1))
> #define round_up(x, y) ((((x) - 1) | __round_mask(x, y)) + 1)
> @@ -409,11 +410,10 @@ static int sdsi_meter_cert_show(struct sdsi_dev *s)
>
> printf("Number of Feature Counters: %ld\n", BUNDLE_COUNT(mc->bundle_length));
> while (count < BUNDLE_COUNT(mc->bundle_length)) {
> - char feature[5];
> + char feature[FEAT_LEN];
>
> - feature[4] = '\0';
> get_feature(bec[count].encoding, feature);
> - printf(" %s: %d\n", feature, bec[count].counter);
> + printf(" %.4s: %d\n", feature, bec[count].counter);
> ++count;
> }
>
> @@ -494,7 +494,7 @@ static int sdsi_state_cert_show(struct sdsi_dev *s)
> sizeof(*lki) + // size of the license key info
> offset; // offset to this blob content
> struct bundle_encoding *bundle = (void *)(lbc) + sizeof(*lbc);
> - char feature[5];
> + char feature[FEAT_LEN];
> uint32_t i;
>
> printf(" Blob %d:\n", count - 1);
> @@ -507,11 +507,9 @@ static int sdsi_state_cert_show(struct sdsi_dev *s)
> printf(" Blob revision ID: %u\n", lbc->rev_id);
> printf(" Number of Features: %u\n", lbc->num_bundles);
>
> - feature[4] = '\0';
> -
> for (i = 0; i < min(lbc->num_bundles, STATE_MAX_NUM_IN_BUNDLE); i++) {
> get_feature(bundle[i].encoding, feature);
> - printf(" Feature %d: %s\n", i, feature);
> + printf(" Feature %d: %.4s\n", i, feature);
> }
>
> if (lbc->num_bundles > STATE_MAX_NUM_IN_BUNDLE)
>
Hi,
After staring this for a while, I cannot get rid of the feeling that the
removal of NUL termination is a step into wrong direction. But IMO,
instead of the caller side, the NUL termination could be added inside
get_feature().
--
i.
