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Message-ID: <a2dc22ce-30af-0cb0-130c-1078e7ef52a5@kernel.org>
Date: Wed, 16 Jun 2021 15:43:22 -0700
From: Nathan Chancellor <nathan@...nel.org>
To: Christophe Leroy <christophe.leroy@...roup.eu>,
kernel test robot <lkp@...el.com>
Cc: kbuild-all@...ts.01.org, clang-built-linux@...glegroups.com,
linux-kernel@...r.kernel.org,
Herbert Xu <herbert@...dor.apana.org.au>
Subject: Re: drivers/crypto/talitos.c:3328:12: warning: stack frame size of
1040 bytes in function 'talitos_probe'
On 6/9/2021 10:01 PM, Christophe Leroy wrote:
>
>
> Le 10/06/2021 à 01:50, kernel test robot a écrit :
>> tree:
>> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
>> head: 368094df48e680fa51cedb68537408cfa64b788e
>> commit: 43a942d27eaaf33bca560121cbe42f3637e92880 crypto: talitos - Fix
>> ctr(aes) on SEC1
>> date: 4 months ago
>> config: powerpc-randconfig-r031-20210610 (attached as .config)
>> compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project
>> d2012d965d60c3258b3a69d024491698f8aec386)
>
> That's likely a CLANG issue.
>
> With the same commit and the same .config, talitos_probe() has a frame
> of 112 bytes when built with GCC 11
>
> Christophe
It is probably the same root cause as
https://github.com/ClangBuiltLinux/linux/issues/1379 because I can
reproduce it with mpc83xx_defconfig + CONFIG_UBSAN=y +
CONFIG_UBSAN_ALIGNMENT=y.
Cheers,
Nathan
>> 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
>> # install powerpc cross compiling tool for clang build
>> # apt-get install binutils-powerpc-linux-gnu
>> #
>> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=43a942d27eaaf33bca560121cbe42f3637e92880
>>
>> git remote add linus
>> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
>> git fetch --no-tags linus master
>> git checkout 43a942d27eaaf33bca560121cbe42f3637e92880
>> # save the attached .config to linux build tree
>> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross
>> ARCH=powerpc
>>
>> If you fix the issue, kindly add following tag as appropriate
>> Reported-by: kernel test robot <lkp@...el.com>
>>
>> All warnings (new ones prefixed by >>):
>>
>> __do_insb
>> ^
>> arch/powerpc/include/asm/io.h:556:56: note: expanded from macro
>> '__do_insb'
>> #define __do_insb(p, b, n) readsb((PCI_IO_ADDR)_IO_BASE+(p),
>> (b), (n))
>> ~~~~~~~~~~~~~~~~~~~~~^
>> In file included from drivers/crypto/talitos.c:19:
>> In file included from include/linux/interrupt.h:11:
>> In file included from include/linux/hardirq.h:10:
>> In file included from arch/powerpc/include/asm/hardirq.h:6:
>> In file included from include/linux/irq.h:20:
>> In file included from include/linux/io.h:13:
>> In file included from arch/powerpc/include/asm/io.h:619:
>> arch/powerpc/include/asm/io-defs.h:45:1: warning: performing
>> pointer arithmetic on a null pointer has undefined behavior
>> [-Wnull-pointer-arithmetic]
>> DEF_PCI_AC_NORET(insw, (unsigned long p, void *b, unsigned long c),
>> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> arch/powerpc/include/asm/io.h:616:3: note: expanded from macro
>> 'DEF_PCI_AC_NORET'
>> __do_##name al; \
>> ^~~~~~~~~~~~~~
>> <scratch space>:225:1: note: expanded from here
>> __do_insw
>> ^
>> arch/powerpc/include/asm/io.h:557:56: note: expanded from macro
>> '__do_insw'
>> #define __do_insw(p, b, n) readsw((PCI_IO_ADDR)_IO_BASE+(p),
>> (b), (n))
>> ~~~~~~~~~~~~~~~~~~~~~^
>> In file included from drivers/crypto/talitos.c:19:
>> In file included from include/linux/interrupt.h:11:
>> In file included from include/linux/hardirq.h:10:
>> In file included from arch/powerpc/include/asm/hardirq.h:6:
>> In file included from include/linux/irq.h:20:
>> In file included from include/linux/io.h:13:
>> In file included from arch/powerpc/include/asm/io.h:619:
>> arch/powerpc/include/asm/io-defs.h:47:1: warning: performing
>> pointer arithmetic on a null pointer has undefined behavior
>> [-Wnull-pointer-arithmetic]
>> DEF_PCI_AC_NORET(insl, (unsigned long p, void *b, unsigned long c),
>> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> arch/powerpc/include/asm/io.h:616:3: note: expanded from macro
>> 'DEF_PCI_AC_NORET'
>> __do_##name al; \
>> ^~~~~~~~~~~~~~
>> <scratch space>:227:1: note: expanded from here
>> __do_insl
>> ^
>> arch/powerpc/include/asm/io.h:558:56: note: expanded from macro
>> '__do_insl'
>> #define __do_insl(p, b, n) readsl((PCI_IO_ADDR)_IO_BASE+(p),
>> (b), (n))
>> ~~~~~~~~~~~~~~~~~~~~~^
>> In file included from drivers/crypto/talitos.c:19:
>> In file included from include/linux/interrupt.h:11:
>> In file included from include/linux/hardirq.h:10:
>> In file included from arch/powerpc/include/asm/hardirq.h:6:
>> In file included from include/linux/irq.h:20:
>> In file included from include/linux/io.h:13:
>> In file included from arch/powerpc/include/asm/io.h:619:
>> arch/powerpc/include/asm/io-defs.h:49:1: warning: performing
>> pointer arithmetic on a null pointer has undefined behavior
>> [-Wnull-pointer-arithmetic]
>> DEF_PCI_AC_NORET(outsb, (unsigned long p, const void *b, unsigned
>> long c),
>>
>> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>
>> arch/powerpc/include/asm/io.h:616:3: note: expanded from macro
>> 'DEF_PCI_AC_NORET'
>> __do_##name al; \
>> ^~~~~~~~~~~~~~
>> <scratch space>:229:1: note: expanded from here
>> __do_outsb
>> ^
>> arch/powerpc/include/asm/io.h:559:58: note: expanded from macro
>> '__do_outsb'
>> #define __do_outsb(p, b, n)
>> writesb((PCI_IO_ADDR)_IO_BASE+(p),(b),(n))
>> ~~~~~~~~~~~~~~~~~~~~~^
>> In file included from drivers/crypto/talitos.c:19:
>> In file included from include/linux/interrupt.h:11:
>> In file included from include/linux/hardirq.h:10:
>> In file included from arch/powerpc/include/asm/hardirq.h:6:
>> In file included from include/linux/irq.h:20:
>> In file included from include/linux/io.h:13:
>> In file included from arch/powerpc/include/asm/io.h:619:
>> arch/powerpc/include/asm/io-defs.h:51:1: warning: performing
>> pointer arithmetic on a null pointer has undefined behavior
>> [-Wnull-pointer-arithmetic]
>> DEF_PCI_AC_NORET(outsw, (unsigned long p, const void *b, unsigned
>> long c),
>>
>> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>
>> arch/powerpc/include/asm/io.h:616:3: note: expanded from macro
>> 'DEF_PCI_AC_NORET'
>> __do_##name al; \
>> ^~~~~~~~~~~~~~
>> <scratch space>:231:1: note: expanded from here
>> __do_outsw
>> ^
>> arch/powerpc/include/asm/io.h:560:58: note: expanded from macro
>> '__do_outsw'
>> #define __do_outsw(p, b, n)
>> writesw((PCI_IO_ADDR)_IO_BASE+(p),(b),(n))
>> ~~~~~~~~~~~~~~~~~~~~~^
>> In file included from drivers/crypto/talitos.c:19:
>> In file included from include/linux/interrupt.h:11:
>> In file included from include/linux/hardirq.h:10:
>> In file included from arch/powerpc/include/asm/hardirq.h:6:
>> In file included from include/linux/irq.h:20:
>> In file included from include/linux/io.h:13:
>> In file included from arch/powerpc/include/asm/io.h:619:
>> arch/powerpc/include/asm/io-defs.h:53:1: warning: performing
>> pointer arithmetic on a null pointer has undefined behavior
>> [-Wnull-pointer-arithmetic]
>> DEF_PCI_AC_NORET(outsl, (unsigned long p, const void *b, unsigned
>> long c),
>>
>> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>
>> arch/powerpc/include/asm/io.h:616:3: note: expanded from macro
>> 'DEF_PCI_AC_NORET'
>> __do_##name al; \
>> ^~~~~~~~~~~~~~
>> <scratch space>:233:1: note: expanded from here
>> __do_outsl
>> ^
>> arch/powerpc/include/asm/io.h:561:58: note: expanded from macro
>> '__do_outsl'
>> #define __do_outsl(p, b, n)
>> writesl((PCI_IO_ADDR)_IO_BASE+(p),(b),(n))
>> ~~~~~~~~~~~~~~~~~~~~~^
>>>> drivers/crypto/talitos.c:3328:12: warning: stack frame size of 1040
>>>> bytes in function 'talitos_probe' [-Wframe-larger-than=]
>> static int talitos_probe(struct platform_device *ofdev)
>> ^
>> 8 warnings generated.
>>
>>
>> vim +/talitos_probe +3328 drivers/crypto/talitos.c
>>
>> c3e337f88a5b37 Kim Phillips 2011-11-21 3327
>> 1c48a5c93da631 Grant Likely 2011-02-17 @3328 static int
>> talitos_probe(struct platform_device *ofdev)
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3329 {
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3330 struct device
>> *dev = &ofdev->dev;
>> 61c7a080a5a061 Grant Likely 2010-04-13 3331 struct
>> device_node *np = ofdev->dev.of_node;
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3332 struct
>> talitos_private *priv;
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3333 int i, err;
>> 5fa7fa147b1572 LEROY Christophe 2015-04-17 3334 int stride;
>> fd5ea7f011932d LEROY Christophe 2017-10-06 3335 struct resource
>> *res;
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3336
>> 24b92ff276e8f6 LEROY Christophe 2017-10-06 3337 priv =
>> devm_kzalloc(dev, sizeof(struct talitos_private), GFP_KERNEL);
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3338 if (!priv)
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3339 return -ENOMEM;
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3340
>> f3de9cb1ca6ce3 Kevin Hao 2014-01-28 3341
>> INIT_LIST_HEAD(&priv->alg_list);
>> f3de9cb1ca6ce3 Kevin Hao 2014-01-28 3342
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3343
>> dev_set_drvdata(dev, priv);
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3344
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3345 priv->ofdev =
>> ofdev;
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3346
>> 511d63cb193292 Horia Geanta 2012-03-30 3347
>> spin_lock_init(&priv->reg_lock);
>> 511d63cb193292 Horia Geanta 2012-03-30 3348
>> fd5ea7f011932d LEROY Christophe 2017-10-06 3349 res =
>> platform_get_resource(ofdev, IORESOURCE_MEM, 0);
>> fd5ea7f011932d LEROY Christophe 2017-10-06 3350 if (!res)
>> fd5ea7f011932d LEROY Christophe 2017-10-06 3351 return -ENXIO;
>> fd5ea7f011932d LEROY Christophe 2017-10-06 3352 priv->reg =
>> devm_ioremap(dev, res->start, resource_size(res));
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3353 if (!priv->reg) {
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3354 dev_err(dev,
>> "failed to of_iomap\n");
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3355 err = -ENOMEM;
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3356 goto err_out;
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3357 }
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3358
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3359 /* get SEC
>> version capabilities from device tree */
>> fa14c6cfcecb00 LEROY Christophe 2017-10-06 3360
>> of_property_read_u32(np, "fsl,num-channels", &priv->num_channels);
>> fa14c6cfcecb00 LEROY Christophe 2017-10-06 3361
>> of_property_read_u32(np, "fsl,channel-fifo-len", &priv->chfifo_len);
>> fa14c6cfcecb00 LEROY Christophe 2017-10-06 3362
>> of_property_read_u32(np, "fsl,exec-units-mask", &priv->exec_units);
>> fa14c6cfcecb00 LEROY Christophe 2017-10-06 3363
>> of_property_read_u32(np, "fsl,descriptor-types-mask",
>> fa14c6cfcecb00 LEROY Christophe 2017-10-06 3364
>> &priv->desc_types);
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3365
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3366 if
>> (!is_power_of_2(priv->num_channels) || !priv->chfifo_len ||
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3367
>> !priv->exec_units || !priv->desc_types) {
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3368 dev_err(dev,
>> "invalid property data in device tree node\n");
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3369 err = -EINVAL;
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3370 goto err_out;
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3371 }
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3372
>> f3c85bc1bc72b4 Lee Nipper 2008-07-30 3373 if
>> (of_device_is_compatible(np, "fsl,sec3.0"))
>> f3c85bc1bc72b4 Lee Nipper 2008-07-30 3374
>> priv->features |= TALITOS_FTR_SRC_LINK_TBL_LEN_INCLUDES_EXTENT;
>> f3c85bc1bc72b4 Lee Nipper 2008-07-30 3375
>> fe5720e2b7c1e8 Kim Phillips 2008-10-12 3376 if
>> (of_device_is_compatible(np, "fsl,sec2.1"))
>> 60f208d7836216 Kim Phillips 2010-05-19 3377
>> priv->features |= TALITOS_FTR_HW_AUTH_CHECK |
>> 79b3a418e09024 Lee Nipper 2011-11-21 3378
>> TALITOS_FTR_SHA224_HWINIT |
>> 79b3a418e09024 Lee Nipper 2011-11-21 3379
>> TALITOS_FTR_HMAC_OK;
>> fe5720e2b7c1e8 Kim Phillips 2008-10-12 3380
>> 21590888490ce2 LEROY Christophe 2015-04-17 3381 if
>> (of_device_is_compatible(np, "fsl,sec1.0"))
>> 21590888490ce2 LEROY Christophe 2015-04-17 3382
>> priv->features |= TALITOS_FTR_SEC1;
>> 21590888490ce2 LEROY Christophe 2015-04-17 3383
>> 5fa7fa147b1572 LEROY Christophe 2015-04-17 3384 if
>> (of_device_is_compatible(np, "fsl,sec1.2")) {
>> 5fa7fa147b1572 LEROY Christophe 2015-04-17 3385
>> priv->reg_deu = priv->reg + TALITOS12_DEU;
>> 5fa7fa147b1572 LEROY Christophe 2015-04-17 3386
>> priv->reg_aesu = priv->reg + TALITOS12_AESU;
>> 5fa7fa147b1572 LEROY Christophe 2015-04-17 3387
>> priv->reg_mdeu = priv->reg + TALITOS12_MDEU;
>> 5fa7fa147b1572 LEROY Christophe 2015-04-17 3388 stride =
>> TALITOS1_CH_STRIDE;
>> 5fa7fa147b1572 LEROY Christophe 2015-04-17 3389 } else if
>> (of_device_is_compatible(np, "fsl,sec1.0")) {
>> 5fa7fa147b1572 LEROY Christophe 2015-04-17 3390
>> priv->reg_deu = priv->reg + TALITOS10_DEU;
>> 5fa7fa147b1572 LEROY Christophe 2015-04-17 3391
>> priv->reg_aesu = priv->reg + TALITOS10_AESU;
>> 5fa7fa147b1572 LEROY Christophe 2015-04-17 3392
>> priv->reg_mdeu = priv->reg + TALITOS10_MDEU;
>> 5fa7fa147b1572 LEROY Christophe 2015-04-17 3393
>> priv->reg_afeu = priv->reg + TALITOS10_AFEU;
>> 5fa7fa147b1572 LEROY Christophe 2015-04-17 3394
>> priv->reg_rngu = priv->reg + TALITOS10_RNGU;
>> 5fa7fa147b1572 LEROY Christophe 2015-04-17 3395
>> priv->reg_pkeu = priv->reg + TALITOS10_PKEU;
>> 5fa7fa147b1572 LEROY Christophe 2015-04-17 3396 stride =
>> TALITOS1_CH_STRIDE;
>> 5fa7fa147b1572 LEROY Christophe 2015-04-17 3397 } else {
>> 5fa7fa147b1572 LEROY Christophe 2015-04-17 3398
>> priv->reg_deu = priv->reg + TALITOS2_DEU;
>> 5fa7fa147b1572 LEROY Christophe 2015-04-17 3399
>> priv->reg_aesu = priv->reg + TALITOS2_AESU;
>> 5fa7fa147b1572 LEROY Christophe 2015-04-17 3400
>> priv->reg_mdeu = priv->reg + TALITOS2_MDEU;
>> 5fa7fa147b1572 LEROY Christophe 2015-04-17 3401
>> priv->reg_afeu = priv->reg + TALITOS2_AFEU;
>> 5fa7fa147b1572 LEROY Christophe 2015-04-17 3402
>> priv->reg_rngu = priv->reg + TALITOS2_RNGU;
>> 5fa7fa147b1572 LEROY Christophe 2015-04-17 3403
>> priv->reg_pkeu = priv->reg + TALITOS2_PKEU;
>> 5fa7fa147b1572 LEROY Christophe 2015-04-17 3404
>> priv->reg_keu = priv->reg + TALITOS2_KEU;
>> 5fa7fa147b1572 LEROY Christophe 2015-04-17 3405
>> priv->reg_crcu = priv->reg + TALITOS2_CRCU;
>> 5fa7fa147b1572 LEROY Christophe 2015-04-17 3406 stride =
>> TALITOS2_CH_STRIDE;
>> 5fa7fa147b1572 LEROY Christophe 2015-04-17 3407 }
>> 5fa7fa147b1572 LEROY Christophe 2015-04-17 3408
>> dd3c0987f5426d LEROY Christophe 2015-04-17 3409 err =
>> talitos_probe_irq(ofdev);
>> dd3c0987f5426d LEROY Christophe 2015-04-17 3410 if (err)
>> dd3c0987f5426d LEROY Christophe 2015-04-17 3411 goto err_out;
>> dd3c0987f5426d LEROY Christophe 2015-04-17 3412
>> c8c74647b2945e Christophe Leroy 2019-06-17 3413 if
>> (has_ftr_sec1(priv)) {
>> 9c02e2852fcabf LEROY Christophe 2017-10-06 3414 if
>> (priv->num_channels == 1)
>> 9c02e2852fcabf LEROY Christophe 2017-10-06 3415
>> tasklet_init(&priv->done_task[0], talitos1_done_ch0,
>> dd3c0987f5426d LEROY Christophe 2015-04-17 3416
>> (unsigned long)dev);
>> 9c02e2852fcabf LEROY Christophe 2017-10-06 3417 else
>> 9c02e2852fcabf LEROY Christophe 2017-10-06 3418
>> tasklet_init(&priv->done_task[0], talitos1_done_4ch,
>> dd3c0987f5426d LEROY Christophe 2015-04-17 3419
>> (unsigned long)dev);
>> dd3c0987f5426d LEROY Christophe 2015-04-17 3420 } else {
>> 9c02e2852fcabf LEROY Christophe 2017-10-06 3421 if
>> (priv->irq[1]) {
>> dd3c0987f5426d LEROY Christophe 2015-04-17 3422
>> tasklet_init(&priv->done_task[0], talitos2_done_ch0_2,
>> dd3c0987f5426d LEROY Christophe 2015-04-17 3423
>> (unsigned long)dev);
>> dd3c0987f5426d LEROY Christophe 2015-04-17 3424
>> tasklet_init(&priv->done_task[1], talitos2_done_ch1_3,
>> dd3c0987f5426d LEROY Christophe 2015-04-17 3425
>> (unsigned long)dev);
>> 9c02e2852fcabf LEROY Christophe 2017-10-06 3426 } else if
>> (priv->num_channels == 1) {
>> 9c02e2852fcabf LEROY Christophe 2017-10-06 3427
>> tasklet_init(&priv->done_task[0], talitos2_done_ch0,
>> 9c02e2852fcabf LEROY Christophe 2017-10-06 3428
>> (unsigned long)dev);
>> 9c02e2852fcabf LEROY Christophe 2017-10-06 3429 } else {
>> 9c02e2852fcabf LEROY Christophe 2017-10-06 3430
>> tasklet_init(&priv->done_task[0], talitos2_done_4ch,
>> 9c02e2852fcabf LEROY Christophe 2017-10-06 3431
>> (unsigned long)dev);
>> dd3c0987f5426d LEROY Christophe 2015-04-17 3432 }
>> dd3c0987f5426d LEROY Christophe 2015-04-17 3433 }
>> dd3c0987f5426d LEROY Christophe 2015-04-17 3434
>> a86854d0c599b3 Kees Cook 2018-06-12 3435 priv->chan =
>> devm_kcalloc(dev,
>> a86854d0c599b3 Kees Cook 2018-06-12 3436
>> priv->num_channels,
>> a86854d0c599b3 Kees Cook 2018-06-12 3437
>> sizeof(struct talitos_channel),
>> a86854d0c599b3 Kees Cook 2018-06-12 3438
>> GFP_KERNEL);
>> 4b992628812137 Kim Phillips 2009-08-13 3439 if (!priv->chan) {
>> 4b992628812137 Kim Phillips 2009-08-13 3440 dev_err(dev,
>> "failed to allocate channel management space\n");
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3441 err = -ENOMEM;
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3442 goto err_out;
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3443 }
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3444
>> f641ddddc3ad13 Martin Hicks 2015-03-03 3445 priv->fifo_len =
>> roundup_pow_of_two(priv->chfifo_len);
>> f641ddddc3ad13 Martin Hicks 2015-03-03 3446
>> c3e337f88a5b37 Kim Phillips 2011-11-21 3447 for (i = 0; i <
>> priv->num_channels; i++) {
>> 5fa7fa147b1572 LEROY Christophe 2015-04-17 3448
>> priv->chan[i].reg = priv->reg + stride * (i + 1);
>> 2cdba3cf6ffc1f Kim Phillips 2011-12-12 3449 if
>> (!priv->irq[1] || !(i & 1))
>> c3e337f88a5b37 Kim Phillips 2011-11-21 3450
>> priv->chan[i].reg += TALITOS_CH_BASE_OFFSET;
>> ad42d5fc853832 Kim Phillips 2011-11-21 3451
>> 4b992628812137 Kim Phillips 2009-08-13 3452
>> spin_lock_init(&priv->chan[i].head_lock);
>> 4b992628812137 Kim Phillips 2009-08-13 3453
>> spin_lock_init(&priv->chan[i].tail_lock);
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3454
>> a86854d0c599b3 Kees Cook 2018-06-12 3455
>> priv->chan[i].fifo = devm_kcalloc(dev,
>> a86854d0c599b3 Kees Cook 2018-06-12
>> 3456 priv->fifo_len,
>> a86854d0c599b3 Kees Cook 2018-06-12
>> 3457 sizeof(struct talitos_request),
>> a86854d0c599b3 Kees Cook 2018-06-12
>> 3458 GFP_KERNEL);
>> 4b992628812137 Kim Phillips 2009-08-13 3459 if
>> (!priv->chan[i].fifo) {
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3460
>> dev_err(dev, "failed to allocate request fifo %d\n", i);
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3461 err =
>> -ENOMEM;
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3462 goto
>> err_out;
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3463 }
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3464
>> 4b992628812137 Kim Phillips 2009-08-13 3465
>> atomic_set(&priv->chan[i].submit_count,
>> 4b992628812137 Kim Phillips 2009-08-13 3466
>> -(priv->chfifo_len - 1));
>> f641ddddc3ad13 Martin Hicks 2015-03-03 3467 }
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3468
>> 81eb024c7e63f5 Kim Phillips 2009-08-13 3469
>> dma_set_mask(dev, DMA_BIT_MASK(36));
>> 81eb024c7e63f5 Kim Phillips 2009-08-13 3470
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3471 /* reset and
>> initialize the h/w */
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3472 err =
>> init_device(dev);
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3473 if (err) {
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3474 dev_err(dev,
>> "failed to initialize device\n");
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3475 goto err_out;
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3476 }
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3477
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3478 /* register the
>> RNG, if available */
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3479 if
>> (hw_supports(dev, DESC_HDR_SEL0_RNG)) {
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3480 err =
>> talitos_register_rng(dev);
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3481 if (err) {
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3482
>> dev_err(dev, "failed to register hwrng: %d\n", err);
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3483 goto
>> err_out;
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3484 } else
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3485
>> dev_info(dev, "hwrng\n");
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3486 }
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3487
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3488 /* register
>> crypto algorithms the device supports */
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3489 for (i = 0; i <
>> ARRAY_SIZE(driver_algs); i++) {
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3490 if
>> (hw_supports(dev, driver_algs[i].desc_hdr_template)) {
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3491 struct
>> talitos_crypto_alg *t_alg;
>> aeb4c132f33d21 Herbert Xu 2015-07-30 3492 struct
>> crypto_alg *alg = NULL;
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3493
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3494 t_alg =
>> talitos_alg_alloc(dev, &driver_algs[i]);
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3495 if
>> (IS_ERR(t_alg)) {
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3496 err
>> = PTR_ERR(t_alg);
>> 0b2730d8d8b38e Kim Phillips 2011-12-12 3497 if
>> (err == -ENOTSUPP)
>> 79b3a418e09024 Lee Nipper 2011-11-21 3498
>> continue;
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3499 goto
>> err_out;
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3500 }
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3501
>> acbf7c627fb59d Lee Nipper 2010-05-19 3502 switch
>> (t_alg->algt.type) {
>> 373960d794d2b0 Ard Biesheuvel 2019-11-09 3503 case
>> CRYPTO_ALG_TYPE_SKCIPHER:
>> 373960d794d2b0 Ard Biesheuvel 2019-11-09 3504 err
>> = crypto_register_skcipher(
>> 373960d794d2b0 Ard Biesheuvel 2019-11-09
>> 3505 &t_alg->algt.alg.skcipher);
>> 373960d794d2b0 Ard Biesheuvel 2019-11-09 3506 alg
>> = &t_alg->algt.alg.skcipher.base;
>> acbf7c627fb59d Lee Nipper 2010-05-19 3507 break;
>> aeb4c132f33d21 Herbert Xu 2015-07-30 3508
>> aeb4c132f33d21 Herbert Xu 2015-07-30 3509 case
>> CRYPTO_ALG_TYPE_AEAD:
>> aeb4c132f33d21 Herbert Xu 2015-07-30 3510 err
>> = crypto_register_aead(
>> aeb4c132f33d21 Herbert Xu 2015-07-30 3511
>> &t_alg->algt.alg.aead);
>> aeb4c132f33d21 Herbert Xu 2015-07-30 3512 alg
>> = &t_alg->algt.alg.aead.base;
>> aeb4c132f33d21 Herbert Xu 2015-07-30 3513 break;
>> aeb4c132f33d21 Herbert Xu 2015-07-30 3514
>> acbf7c627fb59d Lee Nipper 2010-05-19 3515 case
>> CRYPTO_ALG_TYPE_AHASH:
>> acbf7c627fb59d Lee Nipper 2010-05-19 3516 err
>> = crypto_register_ahash(
>> acbf7c627fb59d Lee Nipper 2010-05-19
>> 3517 &t_alg->algt.alg.hash);
>> aeb4c132f33d21 Herbert Xu 2015-07-30 3518 alg
>> = &t_alg->algt.alg.hash.halg.base;
>> acbf7c627fb59d Lee Nipper 2010-05-19 3519 break;
>> acbf7c627fb59d Lee Nipper 2010-05-19 3520 }
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3521 if (err) {
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3522
>> dev_err(dev, "%s alg registration failed\n",
>> aeb4c132f33d21 Herbert Xu 2015-07-30 3523
>> alg->cra_driver_name);
>> 24b92ff276e8f6 LEROY Christophe 2017-10-06 3524
>> devm_kfree(dev, t_alg);
>> 991155bacb91c9 Horia Geanta 2013-03-20 3525 } else
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3526
>> list_add_tail(&t_alg->entry, &priv->alg_list);
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3527 }
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3528 }
>> 5b859b6ebb18b3 Kim Phillips 2011-11-21 3529 if
>> (!list_empty(&priv->alg_list))
>> 5b859b6ebb18b3 Kim Phillips 2011-11-21 3530
>> dev_info(dev, "%s algorithms registered in /proc/crypto\n",
>> 5b859b6ebb18b3 Kim Phillips 2011-11-21 3531 (char
>> *)of_get_property(np, "compatible", NULL));
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3532
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3533 return 0;
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3534
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3535 err_out:
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3536
>> talitos_remove(ofdev);
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3537
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3538 return err;
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3539 }
>> 9c4a79653b35ef Kim Phillips 2008-06-23 3540
>>
>> :::::: The code at line 3328 was first introduced by commit
>> :::::: 1c48a5c93da63132b92c4bbcd18e690c51539df6 dt: Eliminate
>> of_platform_{,un}register_driver
>>
>> :::::: TO: Grant Likely <grant.likely@...retlab.ca>
>> :::::: CC: Grant Likely <grant.likely@...retlab.ca>
>>
>> ---
>> 0-DAY CI Kernel Test Service, Intel Corporation
>> https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
>>
>
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