[edk2-devel] [PATCH v1 1/1] MdePkg/Library/TdxLib: Remove unnecessary comparison

[Michael D Kinney]

Reviewed-by: Michael D Kinney <michael.d.kinney at intel.com>

> -----Original Message-----
> From: mikuback at linux.microsoft.com <mikuback at linux.microsoft.com>
> Sent: Wednesday, September 6, 2023 10:34 AM
> To: devel at edk2.groups.io
> Cc: Kinney, Michael D <michael.d.kinney at intel.com>; Gao, Liming
> <gaoliming at byosoft.com.cn>; Liu, Zhiguang <zhiguang.liu at intel.com>;
> Rebecca Cran <rebecca at bsdio.com>
> Subject: [PATCH v1 1/1] MdePkg/Library/TdxLib: Remove unnecessary
> comparison
> 
> From: Michael Kubacki <michael.kubacki at microsoft.com>
> 
> Removes the comparison since unsigned values are always greater than
> or equal to 0.
> 
> See the following CodeQL query for more info:
> /cpp/cpp-unsigned-comparison-zero/
> 
> Cc: Michael D Kinney <michael.d.kinney at intel.com>
> Cc: Liming Gao <gaoliming at byosoft.com.cn>
> Cc: Zhiguang Liu <zhiguang.liu at intel.com>
> Cc: Rebecca Cran <rebecca at bsdio.com>
> Signed-off-by: Michael Kubacki <michael.kubacki at microsoft.com>
> ---
>  MdePkg/Library/TdxLib/Rtmr.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/MdePkg/Library/TdxLib/Rtmr.c b/MdePkg/Library/TdxLib/Rtmr.c
> index a0283966b353..cbf1dda7bcff 100644
> --- a/MdePkg/Library/TdxLib/Rtmr.c
> +++ b/MdePkg/Library/TdxLib/Rtmr.c
> @@ -51,7 +51,7 @@ TdExtendRtmr (
> 
>    ASSERT (Data != NULL);
>    ASSERT (DataLen == SHA384_DIGEST_SIZE);
> -  ASSERT (Index >= 0 && Index < RTMR_COUNT);
> +  ASSERT (Index < RTMR_COUNT);
> 
>    if ((Data == NULL) || (DataLen != SHA384_DIGEST_SIZE) || (Index >=
> RTMR_COUNT)) {
>      return EFI_INVALID_PARAMETER;
> --
> 2.42.0.windows.2



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