[ebiggers:crypto-pending 11/11] arch/arm64/crypto/aes-glue.c:479:34: error: 'STRIDE' undeclared
From: kernel test robot
Date: Wed Feb 02 2022 - 06:17:57 EST
tree: https://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux.git crypto-pending
head: 33ee40d3677bee91888ba1a6ee5a37bd6d2292fe
commit: 33ee40d3677bee91888ba1a6ee5a37bd6d2292fe [11/11] crypto: arm64/aes-neon-ctr - improve handling of single tail block
config: arm64-allyesconfig (https://download.01.org/0day-ci/archive/20220202/202202021920.Z3GsGWlW-lkp@xxxxxxxxx/config)
compiler: aarch64-linux-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux.git/commit/?id=33ee40d3677bee91888ba1a6ee5a37bd6d2292fe
git remote add ebiggers https://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux.git
git fetch --no-tags ebiggers crypto-pending
git checkout 33ee40d3677bee91888ba1a6ee5a37bd6d2292fe
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arm64 SHELL=/bin/bash
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>
All errors (new ones prefixed by >>):
arch/arm64/crypto/aes-glue.c: In function 'xctr_encrypt':
>> arch/arm64/crypto/aes-glue.c:479:34: error: 'STRIDE' undeclared (first use in this function)
479 | tail = nbytes % (STRIDE * AES_BLOCK_SIZE);
| ^~~~~~
arch/arm64/crypto/aes-glue.c:479:34: note: each undeclared identifier is reported only once for each function it appears in
vim +/STRIDE +479 arch/arm64/crypto/aes-glue.c
735177ca148af50 Ard Biesheuvel 2019-08-19 451
9d5a9509b912217 Nathan Huckleberry 2022-01-24 452 static int __maybe_unused xctr_encrypt(struct skcipher_request *req)
9d5a9509b912217 Nathan Huckleberry 2022-01-24 453 {
9d5a9509b912217 Nathan Huckleberry 2022-01-24 454 struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
9d5a9509b912217 Nathan Huckleberry 2022-01-24 455 struct crypto_aes_ctx *ctx = crypto_skcipher_ctx(tfm);
9d5a9509b912217 Nathan Huckleberry 2022-01-24 456 int err, rounds = 6 + ctx->key_length / 4;
9d5a9509b912217 Nathan Huckleberry 2022-01-24 457 struct skcipher_walk walk;
9d5a9509b912217 Nathan Huckleberry 2022-01-24 458 unsigned int byte_ctr = 0;
9d5a9509b912217 Nathan Huckleberry 2022-01-24 459
9d5a9509b912217 Nathan Huckleberry 2022-01-24 460 err = skcipher_walk_virt(&walk, req, false);
9d5a9509b912217 Nathan Huckleberry 2022-01-24 461
9d5a9509b912217 Nathan Huckleberry 2022-01-24 462 while (walk.nbytes > 0) {
9d5a9509b912217 Nathan Huckleberry 2022-01-24 463 const u8 *src = walk.src.virt.addr;
9d5a9509b912217 Nathan Huckleberry 2022-01-24 464 unsigned int nbytes = walk.nbytes;
9d5a9509b912217 Nathan Huckleberry 2022-01-24 465 u8 *dst = walk.dst.virt.addr;
9d5a9509b912217 Nathan Huckleberry 2022-01-24 466 u8 buf[AES_BLOCK_SIZE];
9d5a9509b912217 Nathan Huckleberry 2022-01-24 467 unsigned int tail;
9d5a9509b912217 Nathan Huckleberry 2022-01-24 468
9d5a9509b912217 Nathan Huckleberry 2022-01-24 469 if (unlikely(nbytes < AES_BLOCK_SIZE))
9d5a9509b912217 Nathan Huckleberry 2022-01-24 470 src = memcpy(buf, src, nbytes);
9d5a9509b912217 Nathan Huckleberry 2022-01-24 471 else if (nbytes < walk.total)
9d5a9509b912217 Nathan Huckleberry 2022-01-24 472 nbytes &= ~(AES_BLOCK_SIZE - 1);
9d5a9509b912217 Nathan Huckleberry 2022-01-24 473
9d5a9509b912217 Nathan Huckleberry 2022-01-24 474 kernel_neon_begin();
9d5a9509b912217 Nathan Huckleberry 2022-01-24 475 aes_xctr_encrypt(dst, src, ctx->key_enc, rounds, nbytes,
9d5a9509b912217 Nathan Huckleberry 2022-01-24 476 walk.iv, buf, byte_ctr);
9d5a9509b912217 Nathan Huckleberry 2022-01-24 477 kernel_neon_end();
9d5a9509b912217 Nathan Huckleberry 2022-01-24 478
9d5a9509b912217 Nathan Huckleberry 2022-01-24 @479 tail = nbytes % (STRIDE * AES_BLOCK_SIZE);
9d5a9509b912217 Nathan Huckleberry 2022-01-24 480 if (tail > 0 && tail < AES_BLOCK_SIZE)
9d5a9509b912217 Nathan Huckleberry 2022-01-24 481 /*
9d5a9509b912217 Nathan Huckleberry 2022-01-24 482 * The final partial block could not be returned using
9d5a9509b912217 Nathan Huckleberry 2022-01-24 483 * an overlapping store, so it was passed via buf[]
9d5a9509b912217 Nathan Huckleberry 2022-01-24 484 * instead.
9d5a9509b912217 Nathan Huckleberry 2022-01-24 485 */
9d5a9509b912217 Nathan Huckleberry 2022-01-24 486 memcpy(dst + nbytes - tail, buf, tail);
9d5a9509b912217 Nathan Huckleberry 2022-01-24 487 byte_ctr += nbytes;
9d5a9509b912217 Nathan Huckleberry 2022-01-24 488
9d5a9509b912217 Nathan Huckleberry 2022-01-24 489 err = skcipher_walk_done(&walk, walk.nbytes - nbytes);
9d5a9509b912217 Nathan Huckleberry 2022-01-24 490 }
9d5a9509b912217 Nathan Huckleberry 2022-01-24 491
9d5a9509b912217 Nathan Huckleberry 2022-01-24 492 return err;
9d5a9509b912217 Nathan Huckleberry 2022-01-24 493 }
9d5a9509b912217 Nathan Huckleberry 2022-01-24 494
:::::: The code at line 479 was first introduced by commit
:::::: 9d5a9509b912217aa41fd8ca8c5d3c125ecc3ca2 crypto: arm64/aes-xctr: Add accelerated implementation of XCTR
:::::: TO: Nathan Huckleberry <nhuck@xxxxxxxxxx>
:::::: CC: Eric Biggers <ebiggers@xxxxxxxxxx>
---
0-DAY CI Kernel Test Service, Intel Corporation
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