Re: [PATCH 1/1] CryptoPkg/BaseCryptLib: Update pHkdfCtx to PHkdfCtx

["Zhang, Shenglei" <shenglei.zhang@intel.com>]

Jian,

Yes, you are right. 
According to CCS_2_1_Draft, 4.3.3.3, Pointer variables may optionally be prefixed with a 'p'.
So please skip this change.

Thanks,
Shenglei

> -----Original Message-----
> From: Wang, Jian J
> Sent: Thursday, August 15, 2019 5:01 PM
> To: Zhang, Shenglei <shenglei.zhang@intel.com>; devel@edk2.groups.io
> Cc: Ye, Ting <ting.ye@intel.com>
> Subject: RE: [PATCH 1/1] CryptoPkg/BaseCryptLib: Update pHkdfCtx to
> PHkdfCtx
> 
> Shenglei,
> 
> I remember the edk2 coding style allows prefix 'p' (optional) to represent a
> pointer variable.
> 
> Regards,
> Jian
> 
> 
> > -----Original Message-----
> > From: Zhang, Shenglei
> > Sent: Thursday, August 15, 2019 4:49 PM
> > To: devel@edk2.groups.io
> > Cc: Wang, Jian J <jian.j.wang@intel.com>; Ye, Ting <ting.ye@intel.com>
> > Subject: [PATCH 1/1] CryptoPkg/BaseCryptLib: Update pHkdfCtx to
> > PHkdfCtx
> >
> > Update pHkdfCtx to PHkdfCtx, to follow the variable naming
> > rule.
> >
> > Cc: Jian Wang <jian.j.wang@intel.com>
> > Cc: Ting Ye <ting.ye@intel.com>
> > Signed-off-by: Shenglei Zhang <shenglei.zhang@intel.com>
> > ---
> >  .../Library/BaseCryptLib/Kdf/CryptHkdf.c      | 22 +++++++++----------
> >  1 file changed, 11 insertions(+), 11 deletions(-)
> >
> > diff --git a/CryptoPkg/Library/BaseCryptLib/Kdf/CryptHkdf.c
> > b/CryptoPkg/Library/BaseCryptLib/Kdf/CryptHkdf.c
> > index f0fcef211d3f..488346a38b8c 100644
> > --- a/CryptoPkg/Library/BaseCryptLib/Kdf/CryptHkdf.c
> > +++ b/CryptoPkg/Library/BaseCryptLib/Kdf/CryptHkdf.c
> > @@ -39,7 +39,7 @@ HkdfSha256ExtractAndExpand (
> >    IN   UINTN        OutSize
> >    )
> >  {
> > -  EVP_PKEY_CTX *pHkdfCtx;
> > +  EVP_PKEY_CTX *PHkdfCtx;
> >    BOOLEAN Result;
> >
> >    if (Key == NULL || Salt == NULL || Info == NULL || Out == NULL ||
> > @@ -47,29 +47,29 @@ HkdfSha256ExtractAndExpand (
> >      return FALSE;
> >    }
> >
> > -  pHkdfCtx = EVP_PKEY_CTX_new_id(EVP_PKEY_HKDF, NULL);
> > -  if (pHkdfCtx == NULL) {
> > +  PHkdfCtx = EVP_PKEY_CTX_new_id(EVP_PKEY_HKDF, NULL);
> > +  if (PHkdfCtx == NULL) {
> >      return FALSE;
> >    }
> >
> > -  Result = EVP_PKEY_derive_init(pHkdfCtx) > 0;
> > +  Result = EVP_PKEY_derive_init(PHkdfCtx) > 0;
> >    if (Result) {
> > -    Result = EVP_PKEY_CTX_set_hkdf_md(pHkdfCtx, EVP_sha256()) > 0;
> > +    Result = EVP_PKEY_CTX_set_hkdf_md(PHkdfCtx, EVP_sha256()) > 0;
> >    }
> >    if (Result) {
> > -    Result = EVP_PKEY_CTX_set1_hkdf_salt(pHkdfCtx, Salt,
> > (UINT32)SaltSize) > 0;
> > +    Result = EVP_PKEY_CTX_set1_hkdf_salt(PHkdfCtx, Salt,
> > (UINT32)SaltSize) > 0;
> >    }
> >    if (Result) {
> > -    Result = EVP_PKEY_CTX_set1_hkdf_key(pHkdfCtx, Key,
> > (UINT32)KeySize) > 0;
> > +    Result = EVP_PKEY_CTX_set1_hkdf_key(PHkdfCtx, Key,
> > (UINT32)KeySize) > 0;
> >    }
> >    if (Result) {
> > -    Result = EVP_PKEY_CTX_add1_hkdf_info(pHkdfCtx, Info,
> > (UINT32)InfoSize) > 0;
> > +    Result = EVP_PKEY_CTX_add1_hkdf_info(PHkdfCtx, Info,
> > (UINT32)InfoSize) > 0;
> >    }
> >    if (Result) {
> > -    Result = EVP_PKEY_derive(pHkdfCtx, Out, &OutSize) > 0;
> > +    Result = EVP_PKEY_derive(PHkdfCtx, Out, &OutSize) > 0;
> >    }
> >
> > -  EVP_PKEY_CTX_free(pHkdfCtx);
> > -  pHkdfCtx = NULL;
> > +  EVP_PKEY_CTX_free(PHkdfCtx);
> > +  PHkdfCtx = NULL;
> >    return Result;
> >  }
> > --
> > 2.18.0.windows.1