litmus-rt-edfsc.git - LITMUS^RT with the EDF-SC plugin for Real-Time Systems journal paper

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author	bpqw <bpqw@micron.com>	2014-11-12 09:26:42 -0500
committer	Rob Herring <robh@kernel.org>	2014-11-18 12:51:35 -0500
commit	5641c09226f401ee054e48521707fb185380e8d3 (patch)
tree	774bc1aa6f83ca3ea3780b8e06117fabbd758928 /tools/perf/scripts/python/bin
parent	f9cb89b63db8cb2755a5179843a0643cc284f1ef (diff)

devicetree: bindings: Add vendor prefix for Micron Technology, Inc.

This patch is used to add vendor prefix for Micron Technology, Inc. in the vendor-prefixes.txt file. Micron Technology, Inc. is an American multinational corporation based in Boise, Idaho, best known for producing many forms of semiconductor devices. This includes DRAM, SDRAM, flash memory, eMMC and SSDs. Signed-off-by: Bean Huo <bpqw@micron.com> [robh: cleanup commit msg formatting and company name] Signed-off-by: Rob Herring <robh@kernel.org>

Diffstat (limited to 'tools/perf/scripts/python/bin')

0 files changed, 0 insertions, 0 deletions

/* * Cryptographic API. * * HMAC: Keyed-Hashing for Message Authentication (RFC2104). * * Copyright (c) 2002 James Morris <jmorris@intercode.com.au> * Copyright (c) 2006 Herbert Xu <herbert@gondor.apana.org.au> * * The HMAC implementation is derived from USAGI. * Copyright (c) 2002 Kazunori Miyazawa <miyazawa@linux-ipv6.org> / USAGI * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the Free * Software Foundation; either version 2 of the License, or (at your option) * any later version. * */ #include <crypto/algapi.h> #include <crypto/scatterwalk.h> #include <linux/err.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/scatterlist.h> #include <linux/slab.h> #include <linux/string.h> struct hmac_ctx { struct crypto_hash *child; }; static inline void *align_ptr(void *p, unsigned int align) { return (void *)ALIGN((unsigned long)p, align); } static inline struct hmac_ctx *hmac_ctx(struct crypto_hash *tfm) { return align_ptr(crypto_hash_ctx_aligned(tfm) + crypto_hash_blocksize(tfm) * 2 + crypto_hash_digestsize(tfm), sizeof(void *)); } static int hmac_setkey(struct crypto_hash *parent, const u8 *inkey, unsigned int keylen) { int bs = crypto_hash_blocksize(parent); int ds = crypto_hash_digestsize(parent); char *ipad = crypto_hash_ctx_aligned(parent); char *opad = ipad + bs; char *digest = opad + bs; struct hmac_ctx *ctx = align_ptr(digest + ds, sizeof(void *)); struct crypto_hash *tfm = ctx->child; unsigned int i; if (keylen > bs) { struct hash_desc desc; struct scatterlist tmp; int tmplen; int err; desc.tfm = tfm; desc.flags = crypto_hash_get_flags(parent); desc.flags &= CRYPTO_TFM_REQ_MAY_SLEEP; err = crypto_hash_init(&desc); if (err) return err; tmplen = bs * 2 + ds; sg_init_one(&tmp, ipad, tmplen); for (; keylen > tmplen; inkey += tmplen, keylen -= tmplen) { memcpy(ipad, inkey, tmplen); err = crypto_hash_update(&desc, &tmp, tmplen); if (err) return err; } if (keylen) { memcpy(ipad, inkey, keylen); err = crypto_hash_update(&desc, &tmp, keylen); if (err) return err; } err = crypto_hash_final(&desc, digest); if (err) return err; inkey = digest; keylen = ds; } memcpy(ipad, inkey, keylen); memset(ipad + keylen, 0, bs - keylen); memcpy(opad, ipad, bs); for (i = 0; i < bs; i++) { ipad[i] ^= 0x36; opad[i] ^= 0x5c; } return 0; } static int hmac_init(struct hash_desc *pdesc) { struct crypto_hash *parent = pdesc->tfm; int bs = crypto_hash_blocksize(parent); int ds = crypto_hash_digestsize(parent); char *ipad = crypto_hash_ctx_aligned(parent); struct hmac_ctx *ctx = align_ptr(ipad + bs * 2 + ds, sizeof(void *)); struct hash_desc desc; struct scatterlist tmp; int err; desc.tfm = ctx->child; desc.flags = pdesc->flags & CRYPTO_TFM_REQ_MAY_SLEEP; sg_init_one(&tmp, ipad, bs); err = crypto_hash_init(&desc); if (unlikely(err)) return err; return crypto_hash_update(&desc, &tmp, bs); } static int hmac_update(struct hash_desc *pdesc, struct scatterlist *sg, unsigned int nbytes) { struct hmac_ctx *ctx = hmac_ctx(pdesc->tfm); struct hash_desc desc; desc.tfm = ctx->child; desc.flags = pdesc->flags & CRYPTO_TFM_REQ_MAY_SLEEP; return crypto_hash_update(&desc, sg, nbytes); } static int hmac_final(struct hash_desc *pdesc, u8 *out) { struct crypto_hash *parent = pdesc->tfm; int bs = crypto_hash_blocksize(parent); int ds = crypto_hash_digestsize(parent); char *opad = crypto_hash_ctx_aligned(parent) + bs;


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