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, 254 insertions, 0 deletions

diff --git a/crypto/algboss.c b/crypto/algboss.c
new file mode 100644
index 000000000..8b936cae6
--- /dev/null
+++ b/crypto/algboss.c
@@ -0,0 +1,254 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Create default crypto algorithm instances.
+ *
+ * Copyright (c) 2006 Herbert Xu <herbert@gondor.apana.org.au>
+ */
+
+#include <crypto/internal/aead.h>
+#include <linux/completion.h>
+#include <linux/ctype.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/kthread.h>
+#include <linux/module.h>
+#include <linux/notifier.h>
+#include <linux/rtnetlink.h>
+#include <linux/sched/signal.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+
+#include "internal.h"
+
+struct cryptomgr_param {
+	struct rtattr *tb[CRYPTO_MAX_ATTRS + 2];
+
+	struct {
+		struct rtattr attr;
+		struct crypto_attr_type data;
+	} type;
+
+	struct {
+		struct rtattr attr;
+		struct crypto_attr_alg data;
+	} attrs[CRYPTO_MAX_ATTRS];
+
+	char template[CRYPTO_MAX_ALG_NAME];
+
+	struct crypto_larval *larval;
+
+	u32 otype;
+	u32 omask;
+};
+
+struct crypto_test_param {
+	char driver[CRYPTO_MAX_ALG_NAME];
+	char alg[CRYPTO_MAX_ALG_NAME];
+	u32 type;
+};
+
+static int cryptomgr_probe(void *data)
+{
+	struct cryptomgr_param *param = data;
+	struct crypto_template *tmpl;
+	int err = -ENOENT;
+
+	tmpl = crypto_lookup_template(param->template);
+	if (!tmpl)
+		goto out;
+
+	do {
+		err = tmpl->create(tmpl, param->tb);
+	} while (err == -EAGAIN && !signal_pending(current));
+
+	crypto_tmpl_put(tmpl);
+
+out:
+	param->larval->adult = ERR_PTR(err);
+	param->larval->alg.cra_flags |= CRYPTO_ALG_DEAD;
+	complete_all(&param->larval->completion);
+	crypto_alg_put(&param->larval->alg);
+	kfree(param);
+	module_put_and_kthread_exit(0);
+}
+
+static int cryptomgr_schedule_probe(struct crypto_larval *larval)
+{
+	struct task_struct *thread;
+	struct cryptomgr_param *param;
+	const char *name = larval->alg.cra_name;
+	const char *p;
+	unsigned int len;
+	int i;
+
+	if (!try_module_get(THIS_MODULE))
+		goto err;
+
+	param = kzalloc_obj(*param);
+	if (!param)
+		goto err_put_module;
+
+	for (p = name; isalnum(*p) || *p == '-' || *p == '_'; p++)
+		;
+
+	len = p - name;
+	if (!len || *p != '(')
+		goto err_free_param;
+
+	memcpy(param->template, name, len);
+
+	i = 0;
+	for (;;) {
+		name = ++p;
+
+		for (; isalnum(*p) || *p == '-' || *p == '_'; p++)
+			;
+
+		if (*p == '(') {
+			int recursion = 0;
+
+			for (;;) {
+				if (!*++p)
+					goto err_free_param;
+				if (*p == '(')
+					recursion++;
+				else if (*p == ')' && !recursion--)
+					break;
+			}
+
+			p++;
+		}
+
+		len = p - name;
+		if (!len)
+			goto err_free_param;
+
+		param->attrs[i].attr.rta_len = sizeof(param->attrs[i]);
+		param->attrs[i].attr.rta_type = CRYPTOA_ALG;
+		memcpy(param->attrs[i].data.name, name, len);
+
+		param->tb[i + 1] = &param->attrs[i].attr;
+		i++;
+
+		if (i >= CRYPTO_MAX_ATTRS)
+			goto err_free_param;
+
+		if (*p == ')')
+			break;
+
+		if (*p != ',')
+			goto err_free_param;
+	}
+
+	param->tb[i + 1] = NULL;
+
+	param->type.attr.rta_len = sizeof(param->type);
+	param->type.attr.rta_type = CRYPTOA_TYPE;
+	param->type.data.type = larval->alg.cra_flags & ~CRYPTO_ALG_TESTED;
+	param->type.data.mask = larval->mask & ~CRYPTO_ALG_TESTED;
+	param->tb[0] = &param->type.attr;
+
+	param->otype = larval->alg.cra_flags;
+	param->omask = larval->mask;
+
+	crypto_alg_get(&larval->alg);
+	param->larval = larval;
+
+	thread = kthread_run(cryptomgr_probe, param, "cryptomgr_probe");
+	if (IS_ERR(thread))
+		goto err_put_larval;
+
+	return NOTIFY_STOP;
+
+err_put_larval:
+	crypto_alg_put(&larval->alg);
+err_free_param:
+	kfree(param);
+err_put_module:
+	module_put(THIS_MODULE);
+err:
+	return NOTIFY_OK;
+}
+
+static int cryptomgr_test(void *data)
+{
+	struct crypto_test_param *param = data;
+	u32 type = param->type;
+	int err;
+
+	err = alg_test(param->driver, param->alg, type, CRYPTO_ALG_TESTED);
+
+	crypto_alg_tested(param->driver, err);
+
+	kfree(param);
+	module_put_and_kthread_exit(0);
+}
+
+static int cryptomgr_schedule_test(struct crypto_alg *alg)
+{
+	struct task_struct *thread;
+	struct crypto_test_param *param;
+
+	if (!IS_ENABLED(CONFIG_CRYPTO_SELFTESTS))
+		return NOTIFY_DONE;
+
+	if (!try_module_get(THIS_MODULE))
+		goto err;
+
+	param = kzalloc_obj(*param);
+	if (!param)
+		goto err_put_module;
+
+	memcpy(param->driver, alg->cra_driver_name, sizeof(param->driver));
+	memcpy(param->alg, alg->cra_name, sizeof(param->alg));
+	param->type = alg->cra_flags;
+
+	thread = kthread_run(cryptomgr_test, param, "cryptomgr_test");
+	if (IS_ERR(thread))
+		goto err_free_param;
+
+	return NOTIFY_STOP;
+
+err_free_param:
+	kfree(param);
+err_put_module:
+	module_put(THIS_MODULE);
+err:
+	return NOTIFY_OK;
+}
+
+static int cryptomgr_notify(struct notifier_block *this, unsigned long msg,
+			    void *data)
+{
+	switch (msg) {
+	case CRYPTO_MSG_ALG_REQUEST:
+		return cryptomgr_schedule_probe(data);
+	case CRYPTO_MSG_ALG_REGISTER:
+		return cryptomgr_schedule_test(data);
+	case CRYPTO_MSG_ALG_LOADED:
+		break;
+	}
+
+	return NOTIFY_DONE;
+}
+
+static struct notifier_block cryptomgr_notifier = {
+	.notifier_call = cryptomgr_notify,
+};
+
+static int __init cryptomgr_init(void)
+{
+	return crypto_register_notifier(&cryptomgr_notifier);
+}
+
+static void __exit cryptomgr_exit(void)
+{
+	int err = crypto_unregister_notifier(&cryptomgr_notifier);
+	BUG_ON(err);
+}
+
+module_init(cryptomgr_init);
+module_exit(cryptomgr_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Crypto Algorithm Manager");