linux-kernel - Re: [Outreachy kernel] [PATCH v2] Staging: ccree: Merge assignment with return

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Message-ID: <CAB3L5oy7pxuTNyQmdnWd6M4_UOJ2mdp7uEOAH9sCMZPt-Suekg@mail.gmail.com>
Date:   Sat, 9 Sep 2017 02:45:53 +0530
From:   Srishti Sharma <srishtishar@...il.com>
To:     Julia Lawall <julia.lawall@...6.fr>
Cc:     Gilad Ben-Yossef <gilad@...yossef.com>,
        Greg KH <gregkh@...uxfoundation.org>,
        Linux Crypto Mailing List <linux-crypto@...r.kernel.org>,
        driverdev-devel@...uxdriverproject.org, devel@...verdev.osuosl.org,
        Linux kernel mailing list <linux-kernel@...r.kernel.org>,
        outreachy-kernel@...glegroups.com
Subject: Re: [Outreachy kernel] [PATCH v2] Staging: ccree: Merge assignment
 with return

On Sat, Sep 9, 2017 at 2:28 AM, Julia Lawall <julia.lawall@...6.fr> wrote:
>
>
> On Sat, 9 Sep 2017, Srishti Sharma wrote:
>
>> Merge the assignment and return statements to return the value
>> directly. Done using coccinelle.
>>
>> @@
>> local idexpression ret;
>> expression e;
>> @@
>>
>> -ret =
>> +return
>>      e;
>> -return ret;
>>
>> Signed-off-by: Srishti Sharma <srishtishar@...il.com>
>> ---
>> Changes in v2:
>>  - Edit commit message so that it respects the 80 character limit.
>>
>>  drivers/staging/ccree/ssi_aead.c | 18 ++++++------------
>>  1 file changed, 6 insertions(+), 12 deletions(-)
>>
>> diff --git a/drivers/staging/ccree/ssi_aead.c b/drivers/staging/ccree/ssi_aead.c
>> index 5abe6b2..f4532ea 100644
>> --- a/drivers/staging/ccree/ssi_aead.c
>> +++ b/drivers/staging/ccree/ssi_aead.c
>> @@ -651,7 +651,7 @@ ssi_aead_setkey(struct crypto_aead *tfm, const u8 *key, unsigned int keylen)
>>  static int ssi_rfc4309_ccm_setkey(struct crypto_aead *tfm, const u8 *key, unsigned int keylen)
>>  {
>>       struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm);
>> -     int rc = 0;
>> +
>>
>
> There is still a problem here.  You don't need two blank lines under a
> variable declaration.

When I try to remove that extra blank line it looks like I deleted one
blank line and added another one .

Regards,
Srishti

>
> julia
>
>>       if (keylen < 3)
>>               return -EINVAL;
>> @@ -659,9 +659,7 @@ static int ssi_rfc4309_ccm_setkey(struct crypto_aead *tfm, const u8 *key, unsign
>>       keylen -= 3;
>>       memcpy(ctx->ctr_nonce, key + keylen, 3);
>>
>> -     rc = ssi_aead_setkey(tfm, key, keylen);
>> -
>> -     return rc;
>> +     return ssi_aead_setkey(tfm, key, keylen);
>>  }
>>  #endif /*SSI_CC_HAS_AES_CCM*/
>>
>> @@ -2214,7 +2212,7 @@ static int ssi_rfc4309_ccm_decrypt(struct aead_request *req)
>>  static int ssi_rfc4106_gcm_setkey(struct crypto_aead *tfm, const u8 *key, unsigned int keylen)
>>  {
>>       struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm);
>> -     int rc = 0;
>> +
>>
>>       SSI_LOG_DEBUG("%s()  keylen %d, key %p\n", __func__, keylen, key);
>>
>> @@ -2224,15 +2222,13 @@ static int ssi_rfc4106_gcm_setkey(struct crypto_aead *tfm, const u8 *key, unsign
>>       keylen -= 4;
>>       memcpy(ctx->ctr_nonce, key + keylen, 4);
>>
>> -     rc = ssi_aead_setkey(tfm, key, keylen);
>> -
>> -     return rc;
>> +     return ssi_aead_setkey(tfm, key, keylen);
>>  }
>>
>>  static int ssi_rfc4543_gcm_setkey(struct crypto_aead *tfm, const u8 *key, unsigned int keylen)
>>  {
>>       struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm);
>> -     int rc = 0;
>> +
>>
>>       SSI_LOG_DEBUG("%s()  keylen %d, key %p\n", __func__, keylen, key);
>>
>> @@ -2242,9 +2238,7 @@ static int ssi_rfc4543_gcm_setkey(struct crypto_aead *tfm, const u8 *key, unsign
>>       keylen -= 4;
>>       memcpy(ctx->ctr_nonce, key + keylen, 4);
>>
>> -     rc = ssi_aead_setkey(tfm, key, keylen);
>> -
>> -     return rc;
>> +     return ssi_aead_setkey(tfm, key, keylen);
>>  }
>>
>>  static int ssi_gcm_setauthsize(struct crypto_aead *authenc,
>> --
>> 2.7.4
>>
>> --
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