Merge tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linuxgrafted

Pull I3C updates from Alexandre Belloni:
 "A new driver this cycle, for the AMD AXI I3C controller.

  There are also new features such as IBI wakeup support, SETAASA device
  discovery and ACPI support for the the DAA methods, meaning we can now
  communicate with the SPD devices on DDR5 modules.

  New driver:
   - AMD AXI I3C master controller

  Subsystem:
   - I3C Common Command Code (CCC) handling improvements, especially
     around GET CCCs
   - SETAASA device discovery support
   - ACPI support for all existing DAA methods like SETDASA, SETNEWDA as
     well as I2C devices on I3C bus
   - IBI-based wakeup support

  Drivers:
   - dw: SETAASA support
   - mipi-i3c-hci: advertise IBI wakeup capability, AMD_PT I3C
     controller support, PIO queue management support for HCI v1.2
   - renesas: improve suspend to RAM support, add runtime PM support"

* tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: (70 commits)
  i3c: dw: reduce do_daa time if there's no client
  i3c: mipi-i3c-hci: Add support for AMD_PT I3C controller
  i3c: mipi-i3c-hci: Add PIO queue management support for HCI v1.2
  i3c: mipi-i3c-hci: Fix missing STAT_IBI_STATUS_THLD in PIO mode
  i3c: dw: rename "pclk" to "apb" to match dt-binding
  i3c: dw: make struct dw_i3c_cmd smaller
  i3c: dw: use COMMAND_PORT_TRANSFER_ARG instead of hardcoding
  i3c: renesas: Don't register devices when ENTDAA times out
  i3c: master: dw-i3c-master: fix OD timing for first broadcast
  i3c: mipi-i3c-hci: Advertise IBI wakeup capability
  i3c: mipi-i3c-hci: Factor out i3c_hci_sysdev()
  i3c: mipi-i3c-hci-pci: Propagate I3C wakeup requirements to PCI
  i3c: master: Reject IBI requests from non-IBI-capable devices
  i3c: master: Add helper to query bus wakeup requirements
  i3c: master: Report wakeup events for IBIs
  i3c: master: Support IBI-based wakeup capability
  i3c: master: Fix potential UAF in i3c_device_match()
  i3c: master: Fix potential UAF in i3c_device_uevent()
  i3c: Make dev->desc locking assumptions explicit
  i3c: master: Fix use-after-free of master->this
  ...

1 files changed, 228 insertions, 0 deletions

diff --git a/crypto/ecb.c b/crypto/ecb.c
new file mode 100644
index 000000000..cd1b20456
--- /dev/null
+++ b/crypto/ecb.c
@@ -0,0 +1,228 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * ECB: Electronic CodeBook mode
+ *
+ * Copyright (c) 2006 Herbert Xu <herbert@gondor.apana.org.au>
+ */
+
+#include <crypto/internal/cipher.h>
+#include <crypto/internal/skcipher.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+
+static int crypto_ecb_crypt(struct crypto_cipher *cipher, const u8 *src,
+			    u8 *dst, unsigned nbytes, bool final,
+			    void (*fn)(struct crypto_tfm *, u8 *, const u8 *))
+{
+	const unsigned int bsize = crypto_cipher_blocksize(cipher);
+
+	while (nbytes >= bsize) {
+		fn(crypto_cipher_tfm(cipher), dst, src);
+
+		src += bsize;
+		dst += bsize;
+
+		nbytes -= bsize;
+	}
+
+	return nbytes && final ? -EINVAL : nbytes;
+}
+
+static int crypto_ecb_encrypt2(struct crypto_lskcipher *tfm, const u8 *src,
+			       u8 *dst, unsigned len, u8 *iv, u32 flags)
+{
+	struct crypto_cipher **ctx = crypto_lskcipher_ctx(tfm);
+	struct crypto_cipher *cipher = *ctx;
+
+	return crypto_ecb_crypt(cipher, src, dst, len,
+				flags & CRYPTO_LSKCIPHER_FLAG_FINAL,
+				crypto_cipher_alg(cipher)->cia_encrypt);
+}
+
+static int crypto_ecb_decrypt2(struct crypto_lskcipher *tfm, const u8 *src,
+			       u8 *dst, unsigned len, u8 *iv, u32 flags)
+{
+	struct crypto_cipher **ctx = crypto_lskcipher_ctx(tfm);
+	struct crypto_cipher *cipher = *ctx;
+
+	return crypto_ecb_crypt(cipher, src, dst, len,
+				flags & CRYPTO_LSKCIPHER_FLAG_FINAL,
+				crypto_cipher_alg(cipher)->cia_decrypt);
+}
+
+static int lskcipher_setkey_simple2(struct crypto_lskcipher *tfm,
+				    const u8 *key, unsigned int keylen)
+{
+	struct crypto_cipher **ctx = crypto_lskcipher_ctx(tfm);
+	struct crypto_cipher *cipher = *ctx;
+
+	crypto_cipher_clear_flags(cipher, CRYPTO_TFM_REQ_MASK);
+	crypto_cipher_set_flags(cipher, crypto_lskcipher_get_flags(tfm) &
+				CRYPTO_TFM_REQ_MASK);
+	return crypto_cipher_setkey(cipher, key, keylen);
+}
+
+static int lskcipher_init_tfm_simple2(struct crypto_lskcipher *tfm)
+{
+	struct lskcipher_instance *inst = lskcipher_alg_instance(tfm);
+	struct crypto_cipher **ctx = crypto_lskcipher_ctx(tfm);
+	struct crypto_cipher_spawn *spawn;
+	struct crypto_cipher *cipher;
+
+	spawn = lskcipher_instance_ctx(inst);
+	cipher = crypto_spawn_cipher(spawn);
+	if (IS_ERR(cipher))
+		return PTR_ERR(cipher);
+
+	*ctx = cipher;
+	return 0;
+}
+
+static void lskcipher_exit_tfm_simple2(struct crypto_lskcipher *tfm)
+{
+	struct crypto_cipher **ctx = crypto_lskcipher_ctx(tfm);
+
+	crypto_free_cipher(*ctx);
+}
+
+static void lskcipher_free_instance_simple2(struct lskcipher_instance *inst)
+{
+	crypto_drop_cipher(lskcipher_instance_ctx(inst));
+	kfree(inst);
+}
+
+static struct lskcipher_instance *lskcipher_alloc_instance_simple2(
+	struct crypto_template *tmpl, struct rtattr **tb)
+{
+	struct crypto_cipher_spawn *spawn;
+	struct lskcipher_instance *inst;
+	struct crypto_alg *cipher_alg;
+	u32 mask;
+	int err;
+
+	err = crypto_check_attr_type(tb, CRYPTO_ALG_TYPE_LSKCIPHER, &mask);
+	if (err)
+		return ERR_PTR(err);
+
+	inst = kzalloc(sizeof(*inst) + sizeof(*spawn), GFP_KERNEL);
+	if (!inst)
+		return ERR_PTR(-ENOMEM);
+	spawn = lskcipher_instance_ctx(inst);
+
+	err = crypto_grab_cipher(spawn, lskcipher_crypto_instance(inst),
+				 crypto_attr_alg_name(tb[1]), 0, mask);
+	if (err)
+		goto err_free_inst;
+	cipher_alg = crypto_spawn_cipher_alg(spawn);
+
+	err = crypto_inst_setname(lskcipher_crypto_instance(inst), tmpl->name,
+				  cipher_alg);
+	if (err)
+		goto err_free_inst;
+
+	inst->free = lskcipher_free_instance_simple2;
+
+	/* Default algorithm properties, can be overridden */
+	inst->alg.co.base.cra_blocksize = cipher_alg->cra_blocksize;
+	inst->alg.co.base.cra_alignmask = cipher_alg->cra_alignmask;
+	inst->alg.co.base.cra_priority = cipher_alg->cra_priority;
+	inst->alg.co.min_keysize = cipher_alg->cra_cipher.cia_min_keysize;
+	inst->alg.co.max_keysize = cipher_alg->cra_cipher.cia_max_keysize;
+	inst->alg.co.ivsize = cipher_alg->cra_blocksize;
+
+	/* Use struct crypto_cipher * by default, can be overridden */
+	inst->alg.co.base.cra_ctxsize = sizeof(struct crypto_cipher *);
+	inst->alg.setkey = lskcipher_setkey_simple2;
+	inst->alg.init = lskcipher_init_tfm_simple2;
+	inst->alg.exit = lskcipher_exit_tfm_simple2;
+
+	return inst;
+
+err_free_inst:
+	lskcipher_free_instance_simple2(inst);
+	return ERR_PTR(err);
+}
+
+static int crypto_ecb_create2(struct crypto_template *tmpl, struct rtattr **tb)
+{
+	struct lskcipher_instance *inst;
+	int err;
+
+	inst = lskcipher_alloc_instance_simple2(tmpl, tb);
+	if (IS_ERR(inst))
+		return PTR_ERR(inst);
+
+	/* ECB mode doesn't take an IV */
+	inst->alg.co.ivsize = 0;
+
+	inst->alg.encrypt = crypto_ecb_encrypt2;
+	inst->alg.decrypt = crypto_ecb_decrypt2;
+
+	err = lskcipher_register_instance(tmpl, inst);
+	if (err)
+		inst->free(inst);
+
+	return err;
+}
+
+static int crypto_ecb_create(struct crypto_template *tmpl, struct rtattr **tb)
+{
+	struct crypto_lskcipher_spawn *spawn;
+	struct lskcipher_alg *cipher_alg;
+	struct lskcipher_instance *inst;
+	int err;
+
+	inst = lskcipher_alloc_instance_simple(tmpl, tb);
+	if (IS_ERR(inst)) {
+		err = crypto_ecb_create2(tmpl, tb);
+		return err;
+	}
+
+	spawn = lskcipher_instance_ctx(inst);
+	cipher_alg = crypto_lskcipher_spawn_alg(spawn);
+
+	/* ECB mode doesn't take an IV */
+	inst->alg.co.ivsize = 0;
+	if (cipher_alg->co.ivsize)
+		return -EINVAL;
+
+	inst->alg.co.base.cra_ctxsize = cipher_alg->co.base.cra_ctxsize;
+	inst->alg.setkey = cipher_alg->setkey;
+	inst->alg.encrypt = cipher_alg->encrypt;
+	inst->alg.decrypt = cipher_alg->decrypt;
+	inst->alg.init = cipher_alg->init;
+	inst->alg.exit = cipher_alg->exit;
+
+	err = lskcipher_register_instance(tmpl, inst);
+	if (err)
+		inst->free(inst);
+
+	return err;
+}
+
+static struct crypto_template crypto_ecb_tmpl = {
+	.name = "ecb",
+	.create = crypto_ecb_create,
+	.module = THIS_MODULE,
+};
+
+static int __init crypto_ecb_module_init(void)
+{
+	return crypto_register_template(&crypto_ecb_tmpl);
+}
+
+static void __exit crypto_ecb_module_exit(void)
+{
+	crypto_unregister_template(&crypto_ecb_tmpl);
+}
+
+module_init(crypto_ecb_module_init);
+module_exit(crypto_ecb_module_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("ECB block cipher mode of operation");
+MODULE_ALIAS_CRYPTO("ecb");
+MODULE_IMPORT_NS("CRYPTO_INTERNAL");