From f4cdf7ca9a1fdcca413157df19753f388a5a224e Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Wed, 19 Aug 2026 10:09:22 -0700 Subject: Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - v4l2-core: added ISP statistics support and per-block validation - v4l2-core: Allow unknown HDR10 white point and luminance - New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor - New codec: Milos: VPU v2.0 codec support - isp driver: gained support for Dreamchip RPPX1 ISP framework - vsp1 driver: gained support for RZ/T2H and RZ/N2H - Novalake driver: gained CVS support for new NVL hardware - dvb-core: fix feed leak on failed DMX_ADD_PID - several driver fixes, cleanups and minor improvements * tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits) media: ipu-bridge: check all DMI entries when overriding sensor rotation media: v4l2-async: avoid deleting unlinked ASC entry on link error media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement media: intel/ipu6: fix async notifier cleanup leak on parse error media: staging/ipu7: fix async notifier UAF on probe error path media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem() media: rcar-isp: Fix VSPX reference leaks media: rcar-isp: Release ISPCORE resources media: i2c: imx415: Release runtime PM reference on VBLANK error media: i2c: imx415: Return test pattern write errors media: renesas: vsp1: Declare index variables in for loop statement media: renesas: vsp1: Make reset control optional to support platforms without a reset line media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs media: nxp: imx8-isi: Add additional 32-bit RGB format support media: nxp: imx8-isi: Add 16-bit raw Bayer format support media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks media: nxp: imx8-isi: Correct color map between V4L2 and ISI ... --- crypto/crypto_null.c | 124 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 124 insertions(+) create mode 100644 crypto/crypto_null.c (limited to 'crypto/crypto_null.c') diff --git a/crypto/crypto_null.c b/crypto/crypto_null.c new file mode 100644 index 000000000..fea151df1 --- /dev/null +++ b/crypto/crypto_null.c @@ -0,0 +1,124 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Cryptographic API. + * + * Null algorithms, aka Much Ado About Nothing. + * + * These are needed for IPsec, and may be useful in general for + * testing & debugging. + * + * The null cipher is compliant with RFC2410. + * + * Copyright (c) 2002 James Morris + */ + +#include +#include +#include +#include +#include +#include +#include + +static int null_init(struct shash_desc *desc) +{ + return 0; +} + +static int null_update(struct shash_desc *desc, const u8 *data, + unsigned int len) +{ + return 0; +} + +static int null_final(struct shash_desc *desc, u8 *out) +{ + return 0; +} + +static int null_digest(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out) +{ + return 0; +} + +static int null_hash_setkey(struct crypto_shash *tfm, const u8 *key, + unsigned int keylen) +{ return 0; } + +static int null_skcipher_setkey(struct crypto_skcipher *tfm, const u8 *key, + unsigned int keylen) +{ return 0; } + +static int null_skcipher_crypt(struct skcipher_request *req) +{ + if (req->src != req->dst) + memcpy_sglist(req->dst, req->src, req->cryptlen); + return 0; +} + +static struct shash_alg digest_null = { + .digestsize = NULL_DIGEST_SIZE, + .setkey = null_hash_setkey, + .init = null_init, + .update = null_update, + .finup = null_digest, + .digest = null_digest, + .final = null_final, + .base = { + .cra_name = "digest_null", + .cra_driver_name = "digest_null-generic", + .cra_blocksize = NULL_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } +}; + +static struct skcipher_alg skcipher_null = { + .base.cra_name = "ecb(cipher_null)", + .base.cra_driver_name = "ecb-cipher_null", + .base.cra_priority = 100, + .base.cra_blocksize = NULL_BLOCK_SIZE, + .base.cra_ctxsize = 0, + .base.cra_module = THIS_MODULE, + .min_keysize = NULL_KEY_SIZE, + .max_keysize = NULL_KEY_SIZE, + .ivsize = NULL_IV_SIZE, + .setkey = null_skcipher_setkey, + .encrypt = null_skcipher_crypt, + .decrypt = null_skcipher_crypt, +}; + +MODULE_ALIAS_CRYPTO("digest_null"); +MODULE_ALIAS_CRYPTO("ecb(cipher_null)"); + +static int __init crypto_null_mod_init(void) +{ + int ret = 0; + + ret = crypto_register_shash(&digest_null); + if (ret < 0) + goto out; + + ret = crypto_register_skcipher(&skcipher_null); + if (ret < 0) + goto out_unregister_shash; + + return 0; + +out_unregister_shash: + crypto_unregister_shash(&digest_null); +out: + return ret; +} + +static void __exit crypto_null_mod_fini(void) +{ + crypto_unregister_shash(&digest_null); + crypto_unregister_skcipher(&skcipher_null); +} + +module_init(crypto_null_mod_init); +module_exit(crypto_null_mod_fini); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Null Cryptographic Algorithms"); -- cgit v1.3.1