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, 209 insertions, 0 deletions

diff --git a/include/crypto/sha1.h b/include/crypto/sha1.h
new file mode 100644
index 000000000..4d973e016
--- /dev/null
+++ b/include/crypto/sha1.h
@@ -0,0 +1,209 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Common values for SHA-1 algorithms
+ */
+
+#ifndef _CRYPTO_SHA1_H
+#define _CRYPTO_SHA1_H
+
+#include <linux/types.h>
+
+#define SHA1_DIGEST_SIZE        20
+#define SHA1_BLOCK_SIZE         64
+#define SHA1_STATE_SIZE         offsetof(struct sha1_state, buffer)
+
+#define SHA1_H0		0x67452301UL
+#define SHA1_H1		0xefcdab89UL
+#define SHA1_H2		0x98badcfeUL
+#define SHA1_H3		0x10325476UL
+#define SHA1_H4		0xc3d2e1f0UL
+
+extern const u8 sha1_zero_message_hash[SHA1_DIGEST_SIZE];
+
+struct sha1_state {
+	u32 state[SHA1_DIGEST_SIZE / 4];
+	u64 count;
+	u8 buffer[SHA1_BLOCK_SIZE];
+};
+
+/* State for the SHA-1 compression function */
+struct sha1_block_state {
+	u32 h[SHA1_DIGEST_SIZE / 4];
+};
+
+/**
+ * struct sha1_ctx - Context for hashing a message with SHA-1
+ * @state: the compression function state
+ * @bytecount: number of bytes processed so far
+ * @buf: partial block buffer; bytecount % SHA1_BLOCK_SIZE bytes are valid
+ */
+struct sha1_ctx {
+	struct sha1_block_state state;
+	u64 bytecount;
+	u8 buf[SHA1_BLOCK_SIZE];
+};
+
+/**
+ * sha1_init() - Initialize a SHA-1 context for a new message
+ * @ctx: the context to initialize
+ *
+ * If you don't need incremental computation, consider sha1() instead.
+ *
+ * Context: Any context.
+ */
+void sha1_init(struct sha1_ctx *ctx);
+
+/**
+ * sha1_update() - Update a SHA-1 context with message data
+ * @ctx: the context to update; must have been initialized
+ * @data: the message data
+ * @len: the data length in bytes
+ *
+ * This can be called any number of times.
+ *
+ * Context: Any context.
+ */
+void sha1_update(struct sha1_ctx *ctx, const u8 *data, size_t len);
+
+/**
+ * sha1_final() - Finish computing a SHA-1 message digest
+ * @ctx: the context to finalize; must have been initialized
+ * @out: (output) the resulting SHA-1 message digest
+ *
+ * After finishing, this zeroizes @ctx.  So the caller does not need to do it.
+ *
+ * Context: Any context.
+ */
+void sha1_final(struct sha1_ctx *ctx, u8 out[at_least SHA1_DIGEST_SIZE]);
+
+/**
+ * sha1() - Compute SHA-1 message digest in one shot
+ * @data: the message data
+ * @len: the data length in bytes
+ * @out: (output) the resulting SHA-1 message digest
+ *
+ * Context: Any context.
+ */
+void sha1(const u8 *data, size_t len, u8 out[at_least SHA1_DIGEST_SIZE]);
+
+/**
+ * struct hmac_sha1_key - Prepared key for HMAC-SHA1
+ * @istate: private
+ * @ostate: private
+ */
+struct hmac_sha1_key {
+	struct sha1_block_state istate;
+	struct sha1_block_state ostate;
+};
+
+/**
+ * struct hmac_sha1_ctx - Context for computing HMAC-SHA1 of a message
+ * @sha_ctx: private
+ * @ostate: private
+ */
+struct hmac_sha1_ctx {
+	struct sha1_ctx sha_ctx;
+	struct sha1_block_state ostate;
+};
+
+/**
+ * hmac_sha1_preparekey() - Prepare a key for HMAC-SHA1
+ * @key: (output) the key structure to initialize
+ * @raw_key: the raw HMAC-SHA1 key
+ * @raw_key_len: the key length in bytes.  All key lengths are supported.
+ *
+ * Note: the caller is responsible for zeroizing both the struct hmac_sha1_key
+ * and the raw key once they are no longer needed.
+ *
+ * Context: Any context.
+ */
+void hmac_sha1_preparekey(struct hmac_sha1_key *key,
+			  const u8 *raw_key, size_t raw_key_len);
+
+/**
+ * hmac_sha1_init() - Initialize an HMAC-SHA1 context for a new message
+ * @ctx: (output) the HMAC context to initialize
+ * @key: the prepared HMAC key
+ *
+ * If you don't need incremental computation, consider hmac_sha1() instead.
+ *
+ * Context: Any context.
+ */
+void hmac_sha1_init(struct hmac_sha1_ctx *ctx, const struct hmac_sha1_key *key);
+
+/**
+ * hmac_sha1_init_usingrawkey() - Initialize an HMAC-SHA1 context for a new
+ *				  message, using a raw key
+ * @ctx: (output) the HMAC context to initialize
+ * @raw_key: the raw HMAC-SHA1 key
+ * @raw_key_len: the key length in bytes.  All key lengths are supported.
+ *
+ * If you don't need incremental computation, consider hmac_sha1_usingrawkey()
+ * instead.
+ *
+ * Context: Any context.
+ */
+void hmac_sha1_init_usingrawkey(struct hmac_sha1_ctx *ctx,
+				const u8 *raw_key, size_t raw_key_len);
+
+/**
+ * hmac_sha1_update() - Update an HMAC-SHA1 context with message data
+ * @ctx: the HMAC context to update; must have been initialized
+ * @data: the message data
+ * @data_len: the data length in bytes
+ *
+ * This can be called any number of times.
+ *
+ * Context: Any context.
+ */
+static inline void hmac_sha1_update(struct hmac_sha1_ctx *ctx,
+				    const u8 *data, size_t data_len)
+{
+	sha1_update(&ctx->sha_ctx, data, data_len);
+}
+
+/**
+ * hmac_sha1_final() - Finish computing an HMAC-SHA1 value
+ * @ctx: the HMAC context to finalize; must have been initialized
+ * @out: (output) the resulting HMAC-SHA1 value
+ *
+ * After finishing, this zeroizes @ctx.  So the caller does not need to do it.
+ *
+ * Context: Any context.
+ */
+void hmac_sha1_final(struct hmac_sha1_ctx *ctx,
+		     u8 out[at_least SHA1_DIGEST_SIZE]);
+
+/**
+ * hmac_sha1() - Compute HMAC-SHA1 in one shot, using a prepared key
+ * @key: the prepared HMAC key
+ * @data: the message data
+ * @data_len: the data length in bytes
+ * @out: (output) the resulting HMAC-SHA1 value
+ *
+ * If you're using the key only once, consider using hmac_sha1_usingrawkey().
+ *
+ * Context: Any context.
+ */
+void hmac_sha1(const struct hmac_sha1_key *key,
+	       const u8 *data, size_t data_len,
+	       u8 out[at_least SHA1_DIGEST_SIZE]);
+
+/**
+ * hmac_sha1_usingrawkey() - Compute HMAC-SHA1 in one shot, using a raw key
+ * @raw_key: the raw HMAC-SHA1 key
+ * @raw_key_len: the key length in bytes.  All key lengths are supported.
+ * @data: the message data
+ * @data_len: the data length in bytes
+ * @out: (output) the resulting HMAC-SHA1 value
+ *
+ * If you're using the key multiple times, prefer to use hmac_sha1_preparekey()
+ * followed by multiple calls to hmac_sha1() instead.
+ *
+ * Context: Any context.
+ */
+void hmac_sha1_usingrawkey(const u8 *raw_key, size_t raw_key_len,
+			   const u8 *data, size_t data_len,
+			   u8 out[at_least SHA1_DIGEST_SIZE]);
+
+#endif /* _CRYPTO_SHA1_H */