kernel: remove linux 3.10 support

[openwrt/svn-archive/archive.git] / target / linux / generic / patches-3.10 / 540-crypto-xz-decompression-support.patch

diff --git a/target/linux/generic/patches-3.10/540-crypto-xz-decompression-support.patch b/target/linux/generic/patches-3.10/540-crypto-xz-decompression-support.patch
deleted file mode 100644 (file)
index c1384b3..0000000
--- a/target/linux/generic/patches-3.10/540-crypto-xz-decompression-support.patch
+++ /dev/null
@@ -1,146 +0,0 @@
---- a/crypto/Kconfig
-+++ b/crypto/Kconfig
-@@ -1361,6 +1361,13 @@ config CRYPTO_842
-       help
-         This is the 842 algorithm.
- 
-+config CRYPTO_XZ
-+      tristate "XZ compression algorithm"
-+      select CRYPTO_ALGAPI
-+      select XZ_DEC
-+      help
-+        This is the XZ algorithm. Only decompression is supported for now.
-+
- comment "Random Number Generation"
- 
- config CRYPTO_ANSI_CPRNG
---- a/crypto/Makefile
-+++ b/crypto/Makefile
-@@ -85,6 +85,7 @@ obj-$(CONFIG_CRYPTO_CRC32C) += crc32c.o
- obj-$(CONFIG_CRYPTO_CRC32) += crc32.o
- obj-$(CONFIG_CRYPTO_AUTHENC) += authenc.o authencesn.o
- obj-$(CONFIG_CRYPTO_LZO) += lzo.o
-+obj-$(CONFIG_CRYPTO_XZ) += xz.o
- obj-$(CONFIG_CRYPTO_842) += 842.o
- obj-$(CONFIG_CRYPTO_RNG2) += rng.o
- obj-$(CONFIG_CRYPTO_RNG2) += krng.o
---- /dev/null
-+++ b/crypto/xz.c
-@@ -0,0 +1,117 @@
-+/*
-+ * Cryptographic API.
-+ *
-+ * XZ decompression support.
-+ *
-+ * Copyright (c) 2012 Gabor Juhos <juhosg@openwrt.org>
-+ *
-+ * This program is free software; you can redistribute it and/or modify it
-+ * under the terms of the GNU General Public License version 2 as published by
-+ * the Free Software Foundation.
-+ *
-+ */
-+#include <linux/init.h>
-+#include <linux/module.h>
-+#include <linux/crypto.h>
-+#include <linux/xz.h>
-+#include <linux/interrupt.h>
-+#include <linux/mm.h>
-+#include <linux/net.h>
-+
-+struct xz_comp_ctx {
-+      struct xz_dec   *decomp_state;
-+      struct xz_buf   decomp_buf;
-+};
-+
-+static int crypto_xz_decomp_init(struct xz_comp_ctx *ctx)
-+{
-+      ctx->decomp_state = xz_dec_init(XZ_SINGLE, 0);
-+      if (!ctx->decomp_state)
-+              return -ENOMEM;
-+
-+      return 0;
-+}
-+
-+static void crypto_xz_decomp_exit(struct xz_comp_ctx *ctx)
-+{
-+      xz_dec_end(ctx->decomp_state);
-+}
-+
-+static int crypto_xz_init(struct crypto_tfm *tfm)
-+{
-+      struct xz_comp_ctx *ctx = crypto_tfm_ctx(tfm);
-+
-+      return crypto_xz_decomp_init(ctx);
-+}
-+
-+static void crypto_xz_exit(struct crypto_tfm *tfm)
-+{
-+      struct xz_comp_ctx *ctx = crypto_tfm_ctx(tfm);
-+
-+      crypto_xz_decomp_exit(ctx);
-+}
-+
-+static int crypto_xz_compress(struct crypto_tfm *tfm, const u8 *src,
-+                            unsigned int slen, u8 *dst, unsigned int *dlen)
-+{
-+      return -EOPNOTSUPP;
-+}
-+
-+static int crypto_xz_decompress(struct crypto_tfm *tfm, const u8 *src,
-+                              unsigned int slen, u8 *dst, unsigned int *dlen)
-+{
-+      struct xz_comp_ctx *dctx = crypto_tfm_ctx(tfm);
-+      struct xz_buf *xz_buf = &dctx->decomp_buf;
-+      int ret;
-+
-+      memset(xz_buf, '\0', sizeof(struct xz_buf));
-+
-+      xz_buf->in = (u8 *) src;
-+      xz_buf->in_pos = 0;
-+      xz_buf->in_size = slen;
-+      xz_buf->out = (u8 *) dst;
-+      xz_buf->out_pos = 0;
-+      xz_buf->out_size = *dlen;
-+
-+      ret = xz_dec_run(dctx->decomp_state, xz_buf);
-+      if (ret != XZ_STREAM_END) {
-+              ret = -EINVAL;
-+              goto out;
-+      }
-+
-+      *dlen = xz_buf->out_pos;
-+      ret = 0;
-+
-+out:
-+      return ret;
-+}
-+
-+static struct crypto_alg crypto_xz_alg = {
-+      .cra_name               = "xz",
-+      .cra_flags              = CRYPTO_ALG_TYPE_COMPRESS,
-+      .cra_ctxsize            = sizeof(struct xz_comp_ctx),
-+      .cra_module             = THIS_MODULE,
-+      .cra_list               = LIST_HEAD_INIT(crypto_xz_alg.cra_list),
-+      .cra_init               = crypto_xz_init,
-+      .cra_exit               = crypto_xz_exit,
-+      .cra_u                  = { .compress = {
-+      .coa_compress           = crypto_xz_compress,
-+      .coa_decompress         = crypto_xz_decompress } }
-+};
-+
-+static int __init crypto_xz_mod_init(void)
-+{
-+      return crypto_register_alg(&crypto_xz_alg);
-+}
-+
-+static void __exit crypto_xz_mod_exit(void)
-+{
-+      crypto_unregister_alg(&crypto_xz_alg);
-+}
-+
-+module_init(crypto_xz_mod_init);
-+module_exit(crypto_xz_mod_exit);
-+
-+MODULE_LICENSE("GPL v2");
-+MODULE_DESCRIPTION("Crypto XZ decompression support");
-+MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");