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From: Dan Carpenter <dan.carpenter@linaro.org>
To: oe-kbuild@lists.linux.dev, Harsh Jain <h.jain@amd.com>,
	herbert@gondor.apana.org.au, davem@davemloft.net,
	linux-crypto@vger.kernel.org, devicetree@vger.kernel.org,
	mounika.botcha@amd.com, sarat.chand.savitala@amd.com,
	mohan.dhanawade@amd.com, michal.simek@amd.com
Cc: lkp@intel.com, oe-kbuild-all@lists.linux.dev,
	Harsh Jain <h.jain@amd.com>
Subject: Re: [PATCH 3/3] crypto: drbg: Export CTR DRBG DF functions
Date: Mon, 2 Jun 2025 09:50:07 +0300	[thread overview]
Message-ID: <202505311325.22fIOcCt-lkp@intel.com> (raw)
In-Reply-To: <20250529113116.669667-4-h.jain@amd.com>

Hi Harsh,

kernel test robot noticed the following build warnings:

https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Harsh-Jain/dt-bindings-crypto-Add-node-for-True-Random-Number-Generator/20250529-193255
base:   https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git master
patch link:    https://lore.kernel.org/r/20250529113116.669667-4-h.jain%40amd.com
patch subject: [PATCH 3/3] crypto: drbg: Export CTR DRBG DF functions
config: s390-randconfig-r073-20250531 (https://download.01.org/0day-ci/archive/20250531/202505311325.22fIOcCt-lkp@intel.com/config)
compiler: clang version 21.0.0git (https://github.com/llvm/llvm-project f819f46284f2a79790038e1f6649172789734ae8)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
| Closes: https://lore.kernel.org/r/202505311325.22fIOcCt-lkp@intel.com/

smatch warnings:
drivers/crypto/xilinx/xilinx-trng.c:368 xtrng_probe() warn: missing unwind goto?

vim +368 drivers/crypto/xilinx/xilinx-trng.c

940a39f34689c6 Harsh Jain 2025-05-29  334  static int xtrng_probe(struct platform_device *pdev)
940a39f34689c6 Harsh Jain 2025-05-29  335  {
940a39f34689c6 Harsh Jain 2025-05-29  336  	struct xilinx_rng *rng;
bf8ac5fe42abd6 Harsh Jain 2025-05-29  337  	size_t sb_size;
940a39f34689c6 Harsh Jain 2025-05-29  338  	int ret;
940a39f34689c6 Harsh Jain 2025-05-29  339  
940a39f34689c6 Harsh Jain 2025-05-29  340  	rng = devm_kzalloc(&pdev->dev, sizeof(*rng), GFP_KERNEL);
940a39f34689c6 Harsh Jain 2025-05-29  341  	if (!rng)
940a39f34689c6 Harsh Jain 2025-05-29  342  		return -ENOMEM;
940a39f34689c6 Harsh Jain 2025-05-29  343  
940a39f34689c6 Harsh Jain 2025-05-29  344  	rng->dev = &pdev->dev;
940a39f34689c6 Harsh Jain 2025-05-29  345  	rng->rng_base = devm_platform_ioremap_resource(pdev, 0);
940a39f34689c6 Harsh Jain 2025-05-29  346  	if (IS_ERR(rng->rng_base)) {
940a39f34689c6 Harsh Jain 2025-05-29  347  		dev_err(&pdev->dev, "Failed to map resource %ld\n", PTR_ERR(rng->rng_base));
940a39f34689c6 Harsh Jain 2025-05-29  348  		return PTR_ERR(rng->rng_base);
940a39f34689c6 Harsh Jain 2025-05-29  349  	}
940a39f34689c6 Harsh Jain 2025-05-29  350  
bf8ac5fe42abd6 Harsh Jain 2025-05-29  351  	rng->tfm = crypto_alloc_cipher("aes", 0, 0);
bf8ac5fe42abd6 Harsh Jain 2025-05-29  352  	if (IS_ERR(rng->tfm)) {
bf8ac5fe42abd6 Harsh Jain 2025-05-29  353  		pr_info("DRBG: could not allocate cipher TFM handle:\n");
bf8ac5fe42abd6 Harsh Jain 2025-05-29  354  		return PTR_ERR(rng->tfm);
bf8ac5fe42abd6 Harsh Jain 2025-05-29  355  	}
bf8ac5fe42abd6 Harsh Jain 2025-05-29  356  
bf8ac5fe42abd6 Harsh Jain 2025-05-29  357  	sb_size = crypto_drbg_ctr_df_datalen(TRNG_SEED_LEN_BYTES, AES_BLOCK_SIZE);
bf8ac5fe42abd6 Harsh Jain 2025-05-29  358  	rng->scratchpadbuf = devm_kzalloc(&pdev->dev, sb_size, GFP_KERNEL);
bf8ac5fe42abd6 Harsh Jain 2025-05-29  359  	if (!rng->scratchpadbuf) {
bf8ac5fe42abd6 Harsh Jain 2025-05-29  360  		ret = -ENOMEM;
bf8ac5fe42abd6 Harsh Jain 2025-05-29  361  		goto cipher_cleanup;
bf8ac5fe42abd6 Harsh Jain 2025-05-29  362  	}
bf8ac5fe42abd6 Harsh Jain 2025-05-29  363  
940a39f34689c6 Harsh Jain 2025-05-29  364  	xtrng_trng_reset(rng->rng_base);
940a39f34689c6 Harsh Jain 2025-05-29  365  	ret = xtrng_reseed_internal(rng);
940a39f34689c6 Harsh Jain 2025-05-29  366  	if (ret) {
940a39f34689c6 Harsh Jain 2025-05-29  367  		dev_err(&pdev->dev, "TRNG Seed fail\n");
940a39f34689c6 Harsh Jain 2025-05-29 @368  		return ret;

goto cipher_cleanup;

940a39f34689c6 Harsh Jain 2025-05-29  369  	}
940a39f34689c6 Harsh Jain 2025-05-29  370  
940a39f34689c6 Harsh Jain 2025-05-29  371  	xilinx_rng_dev = rng;
940a39f34689c6 Harsh Jain 2025-05-29  372  	mutex_init(&rng->lock);
940a39f34689c6 Harsh Jain 2025-05-29  373  	ret = crypto_register_rng(&xtrng_trng_alg);
940a39f34689c6 Harsh Jain 2025-05-29  374  	if (ret) {
940a39f34689c6 Harsh Jain 2025-05-29  375  		dev_err(&pdev->dev, "Crypto Random device registration failed: %d\n", ret);
bf8ac5fe42abd6 Harsh Jain 2025-05-29  376  		goto cipher_cleanup;
940a39f34689c6 Harsh Jain 2025-05-29  377  	}
bf8ac5fe42abd6 Harsh Jain 2025-05-29  378  
940a39f34689c6 Harsh Jain 2025-05-29  379  	ret = xtrng_hwrng_register(&rng->trng);
940a39f34689c6 Harsh Jain 2025-05-29  380  	if (ret) {
940a39f34689c6 Harsh Jain 2025-05-29  381  		dev_err(&pdev->dev, "HWRNG device registration failed: %d\n", ret);
940a39f34689c6 Harsh Jain 2025-05-29  382  		goto crypto_rng_free;
940a39f34689c6 Harsh Jain 2025-05-29  383  	}
940a39f34689c6 Harsh Jain 2025-05-29  384  	platform_set_drvdata(pdev, rng);
940a39f34689c6 Harsh Jain 2025-05-29  385  
940a39f34689c6 Harsh Jain 2025-05-29  386  	return 0;
940a39f34689c6 Harsh Jain 2025-05-29  387  
940a39f34689c6 Harsh Jain 2025-05-29  388  crypto_rng_free:
940a39f34689c6 Harsh Jain 2025-05-29  389  	crypto_unregister_rng(&xtrng_trng_alg);
940a39f34689c6 Harsh Jain 2025-05-29  390  
bf8ac5fe42abd6 Harsh Jain 2025-05-29  391  cipher_cleanup:
bf8ac5fe42abd6 Harsh Jain 2025-05-29  392  	crypto_free_cipher(rng->tfm);
bf8ac5fe42abd6 Harsh Jain 2025-05-29  393  
940a39f34689c6 Harsh Jain 2025-05-29  394  	return ret;
940a39f34689c6 Harsh Jain 2025-05-29  395  }

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki


WARNING: multiple messages have this Message-ID (diff)
From: kernel test robot <lkp@intel.com>
To: oe-kbuild@lists.linux.dev
Cc: lkp@intel.com, Dan Carpenter <error27@gmail.com>
Subject: Re: [PATCH 3/3] crypto: drbg: Export CTR DRBG DF functions
Date: Sat, 31 May 2025 13:18:15 +0800	[thread overview]
Message-ID: <202505311325.22fIOcCt-lkp@intel.com> (raw)

BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
In-Reply-To: <20250529113116.669667-4-h.jain@amd.com>
References: <20250529113116.669667-4-h.jain@amd.com>
TO: Harsh Jain <h.jain@amd.com>
TO: herbert@gondor.apana.org.au
TO: davem@davemloft.net
TO: linux-crypto@vger.kernel.org
TO: devicetree@vger.kernel.org
TO: mounika.botcha@amd.com
TO: sarat.chand.savitala@amd.com
TO: mohan.dhanawade@amd.com
TO: michal.simek@amd.com
CC: Harsh Jain <h.jain@amd.com>

Hi Harsh,

kernel test robot noticed the following build warnings:

[auto build test WARNING on herbert-cryptodev-2.6/master]
[also build test WARNING on herbert-crypto-2.6/master linus/master v6.15 next-20250530]
[cannot apply to xilinx-xlnx/master]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Harsh-Jain/dt-bindings-crypto-Add-node-for-True-Random-Number-Generator/20250529-193255
base:   https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git master
patch link:    https://lore.kernel.org/r/20250529113116.669667-4-h.jain%40amd.com
patch subject: [PATCH 3/3] crypto: drbg: Export CTR DRBG DF functions
:::::: branch date: 2 days ago
:::::: commit date: 2 days ago
config: s390-randconfig-r073-20250531 (https://download.01.org/0day-ci/archive/20250531/202505311325.22fIOcCt-lkp@intel.com/config)
compiler: clang version 21.0.0git (https://github.com/llvm/llvm-project f819f46284f2a79790038e1f6649172789734ae8)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Reported-by: Dan Carpenter <error27@gmail.com>
| Closes: https://lore.kernel.org/r/202505311325.22fIOcCt-lkp@intel.com/

smatch warnings:
drivers/crypto/xilinx/xilinx-trng.c:368 xtrng_probe() warn: missing unwind goto?

vim +368 drivers/crypto/xilinx/xilinx-trng.c

940a39f34689c6 Harsh Jain 2025-05-29  333  
940a39f34689c6 Harsh Jain 2025-05-29  334  static int xtrng_probe(struct platform_device *pdev)
940a39f34689c6 Harsh Jain 2025-05-29  335  {
940a39f34689c6 Harsh Jain 2025-05-29  336  	struct xilinx_rng *rng;
bf8ac5fe42abd6 Harsh Jain 2025-05-29  337  	size_t sb_size;
940a39f34689c6 Harsh Jain 2025-05-29  338  	int ret;
940a39f34689c6 Harsh Jain 2025-05-29  339  
940a39f34689c6 Harsh Jain 2025-05-29  340  	rng = devm_kzalloc(&pdev->dev, sizeof(*rng), GFP_KERNEL);
940a39f34689c6 Harsh Jain 2025-05-29  341  	if (!rng)
940a39f34689c6 Harsh Jain 2025-05-29  342  		return -ENOMEM;
940a39f34689c6 Harsh Jain 2025-05-29  343  
940a39f34689c6 Harsh Jain 2025-05-29  344  	rng->dev = &pdev->dev;
940a39f34689c6 Harsh Jain 2025-05-29  345  	rng->rng_base = devm_platform_ioremap_resource(pdev, 0);
940a39f34689c6 Harsh Jain 2025-05-29  346  	if (IS_ERR(rng->rng_base)) {
940a39f34689c6 Harsh Jain 2025-05-29  347  		dev_err(&pdev->dev, "Failed to map resource %ld\n", PTR_ERR(rng->rng_base));
940a39f34689c6 Harsh Jain 2025-05-29  348  		return PTR_ERR(rng->rng_base);
940a39f34689c6 Harsh Jain 2025-05-29  349  	}
940a39f34689c6 Harsh Jain 2025-05-29  350  
bf8ac5fe42abd6 Harsh Jain 2025-05-29  351  	rng->tfm = crypto_alloc_cipher("aes", 0, 0);
bf8ac5fe42abd6 Harsh Jain 2025-05-29  352  	if (IS_ERR(rng->tfm)) {
bf8ac5fe42abd6 Harsh Jain 2025-05-29  353  		pr_info("DRBG: could not allocate cipher TFM handle:\n");
bf8ac5fe42abd6 Harsh Jain 2025-05-29  354  		return PTR_ERR(rng->tfm);
bf8ac5fe42abd6 Harsh Jain 2025-05-29  355  	}
bf8ac5fe42abd6 Harsh Jain 2025-05-29  356  
bf8ac5fe42abd6 Harsh Jain 2025-05-29  357  	sb_size = crypto_drbg_ctr_df_datalen(TRNG_SEED_LEN_BYTES, AES_BLOCK_SIZE);
bf8ac5fe42abd6 Harsh Jain 2025-05-29  358  	rng->scratchpadbuf = devm_kzalloc(&pdev->dev, sb_size, GFP_KERNEL);
bf8ac5fe42abd6 Harsh Jain 2025-05-29  359  	if (!rng->scratchpadbuf) {
bf8ac5fe42abd6 Harsh Jain 2025-05-29  360  		ret = -ENOMEM;
bf8ac5fe42abd6 Harsh Jain 2025-05-29  361  		goto cipher_cleanup;
bf8ac5fe42abd6 Harsh Jain 2025-05-29  362  	}
bf8ac5fe42abd6 Harsh Jain 2025-05-29  363  
940a39f34689c6 Harsh Jain 2025-05-29  364  	xtrng_trng_reset(rng->rng_base);
940a39f34689c6 Harsh Jain 2025-05-29  365  	ret = xtrng_reseed_internal(rng);
940a39f34689c6 Harsh Jain 2025-05-29  366  	if (ret) {
940a39f34689c6 Harsh Jain 2025-05-29  367  		dev_err(&pdev->dev, "TRNG Seed fail\n");
940a39f34689c6 Harsh Jain 2025-05-29 @368  		return ret;
940a39f34689c6 Harsh Jain 2025-05-29  369  	}
940a39f34689c6 Harsh Jain 2025-05-29  370  
940a39f34689c6 Harsh Jain 2025-05-29  371  	xilinx_rng_dev = rng;
940a39f34689c6 Harsh Jain 2025-05-29  372  	mutex_init(&rng->lock);
940a39f34689c6 Harsh Jain 2025-05-29  373  	ret = crypto_register_rng(&xtrng_trng_alg);
940a39f34689c6 Harsh Jain 2025-05-29  374  	if (ret) {
940a39f34689c6 Harsh Jain 2025-05-29  375  		dev_err(&pdev->dev, "Crypto Random device registration failed: %d\n", ret);
bf8ac5fe42abd6 Harsh Jain 2025-05-29  376  		goto cipher_cleanup;
940a39f34689c6 Harsh Jain 2025-05-29  377  	}
bf8ac5fe42abd6 Harsh Jain 2025-05-29  378  
940a39f34689c6 Harsh Jain 2025-05-29  379  	ret = xtrng_hwrng_register(&rng->trng);
940a39f34689c6 Harsh Jain 2025-05-29  380  	if (ret) {
940a39f34689c6 Harsh Jain 2025-05-29  381  		dev_err(&pdev->dev, "HWRNG device registration failed: %d\n", ret);
940a39f34689c6 Harsh Jain 2025-05-29  382  		goto crypto_rng_free;
940a39f34689c6 Harsh Jain 2025-05-29  383  	}
940a39f34689c6 Harsh Jain 2025-05-29  384  	platform_set_drvdata(pdev, rng);
940a39f34689c6 Harsh Jain 2025-05-29  385  
940a39f34689c6 Harsh Jain 2025-05-29  386  	return 0;
940a39f34689c6 Harsh Jain 2025-05-29  387  
940a39f34689c6 Harsh Jain 2025-05-29  388  crypto_rng_free:
940a39f34689c6 Harsh Jain 2025-05-29  389  	crypto_unregister_rng(&xtrng_trng_alg);
940a39f34689c6 Harsh Jain 2025-05-29  390  
bf8ac5fe42abd6 Harsh Jain 2025-05-29  391  cipher_cleanup:
bf8ac5fe42abd6 Harsh Jain 2025-05-29  392  	crypto_free_cipher(rng->tfm);
bf8ac5fe42abd6 Harsh Jain 2025-05-29  393  
940a39f34689c6 Harsh Jain 2025-05-29  394  	return ret;
940a39f34689c6 Harsh Jain 2025-05-29  395  }
940a39f34689c6 Harsh Jain 2025-05-29  396  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

       reply	other threads:[~2025-06-02  6:50 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-05-31  5:18 kernel test robot [this message]
2025-06-02  6:50 ` [PATCH 3/3] crypto: drbg: Export CTR DRBG DF functions Dan Carpenter
  -- strict thread matches above, loose matches on Subject: below --
2025-05-29 11:31 [PATCH 0/3] Add Versal TRNG driver Harsh Jain
2025-05-29 11:31 ` [PATCH 1/3] dt-bindings: crypto: Add node for True Random Number Generator Harsh Jain
2025-05-30 16:11   ` Conor Dooley
2025-06-06  6:13     ` Jain, Harsh (AECG-SSW)
2025-05-29 11:31 ` [PATCH 2/3] crypto: xilinx: Add TRNG driver for Versal Harsh Jain
2025-05-30 23:21   ` kernel test robot
2025-05-29 11:31 ` [PATCH 3/3] crypto: drbg: Export CTR DRBG DF functions Harsh Jain
2025-05-30 11:17   ` kernel test robot

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