Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediagrafted

Pull media updates from Mauro Carvalho Chehab:

 - v4l2-core: added ISP statistics support and per-block validation

 - v4l2-core: Allow unknown HDR10 white point and luminance

 - New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor

 - New codec: Milos: VPU v2.0 codec support

 - isp driver: gained support for Dreamchip RPPX1 ISP framework

 - vsp1 driver: gained support for RZ/T2H and RZ/N2H

 - Novalake driver: gained CVS support for new NVL hardware

 - dvb-core: fix feed leak on failed DMX_ADD_PID

 - several driver fixes, cleanups and minor improvements

* tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits)
  media: ipu-bridge: check all DMI entries when overriding sensor rotation
  media: v4l2-async: avoid deleting unlinked ASC entry on link error
  media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement
  media: intel/ipu6: fix async notifier cleanup leak on parse error
  media: staging/ipu7: fix async notifier UAF on probe error path
  media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path
  media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem()
  media: rcar-isp: Fix VSPX reference leaks
  media: rcar-isp: Release ISPCORE resources
  media: i2c: imx415: Release runtime PM reference on VBLANK error
  media: i2c: imx415: Return test pattern write errors
  media: renesas: vsp1: Declare index variables in for loop statement
  media: renesas: vsp1: Make reset control optional to support platforms without a reset line
  media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs
  media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs
  media: nxp: imx8-isi: Add additional 32-bit RGB format support
  media: nxp: imx8-isi: Add 16-bit raw Bayer format support
  media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams
  media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks
  media: nxp: imx8-isi: Correct color map between V4L2 and ISI
  ...

1 files changed, 115 insertions, 0 deletions

diff --git a/tools/perf/tests/util.c b/tools/perf/tests/util.c
new file mode 100644
index 000000000..f9abd9911
--- /dev/null
+++ b/tools/perf/tests/util.c
@@ -0,0 +1,115 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "tests.h"
+#include "util/blake2s.h"
+#include "util/debug.h"
+
+#include <linux/compiler.h>
+#include <stdlib.h>
+#include <string2.h>
+
+static int test_strreplace(char needle, const char *haystack,
+			   const char *replace, const char *expected)
+{
+	char *new = strreplace_chars(needle, haystack, replace);
+	int ret = strcmp(new, expected);
+
+	free(new);
+	return ret == 0;
+}
+
+/* Maximum data length tested by test_blake2s() */
+#define MAX_DATA_LEN 512
+
+/*
+ * Hash length tested by test_blake2s().  BLAKE2s supports variable-length
+ * hashes.  However, the only user of BLAKE2s in 'perf' uses 20-byte hashes,
+ * matching the length of the ELF build ID field.  So that's the length we test.
+ */
+#define HASH_LEN 20
+
+/* Test the implementation of the BLAKE2s hash algorithm. */
+static int test_blake2s(void)
+{
+	u8 data[MAX_DATA_LEN];
+	u8 hash[HASH_LEN];
+	u8 hash2[HASH_LEN];
+	struct blake2s_ctx main_ctx;
+	/*
+	 * This value was generated by the following Python code:
+	 *
+	 * import hashlib
+	 *
+	 * data = bytes(i % 256 for i in range(513))
+	 * h = hashlib.blake2s(digest_size=20)
+	 * for i in range(513):
+	 *     h.update(hashlib.blake2s(data=data[:i], digest_size=20).digest())
+	 * print(h.hexdigest())
+	 */
+	static const u8 expected_hash_of_hashes[20] = {
+		0xef, 0x9b, 0x13, 0x98, 0x78, 0x8e, 0x74, 0x59, 0x9c, 0xd5,
+		0x0c, 0xf0, 0x33, 0x97, 0x79, 0x3d, 0x3e, 0xd0, 0x95, 0xa6
+	};
+	size_t i;
+
+	/* Generate MAX_DATA_LEN bytes of data. */
+	for (i = 0; i < MAX_DATA_LEN; i++)
+		data[i] = i;
+
+	blake2s_init(&main_ctx, sizeof(hash));
+	for (i = 0; i <= MAX_DATA_LEN; i++) {
+		struct blake2s_ctx ctx;
+
+		/* Compute the BLAKE2s hash of 'i' data bytes. */
+		blake2s_init(&ctx, HASH_LEN);
+		blake2s_update(&ctx, data, i);
+		blake2s_final(&ctx, hash);
+
+		/* Verify that multiple updates produce the same result. */
+		blake2s_init(&ctx, HASH_LEN);
+		blake2s_update(&ctx, data, i / 2);
+		blake2s_update(&ctx, &data[i / 2], i - (i / 2));
+		blake2s_final(&ctx, hash2);
+		TEST_ASSERT_VAL("inconsistent BLAKE2s hashes",
+				memcmp(hash, hash2, HASH_LEN) == 0);
+
+		/*
+		 * Pass the hash to another BLAKE2s context, so that we
+		 * incrementally compute the hash of all the hashes.
+		 */
+		blake2s_update(&main_ctx, hash, HASH_LEN);
+	}
+
+	/* Verify the hash of all the hashes. */
+	blake2s_final(&main_ctx, hash);
+	TEST_ASSERT_VAL("wrong BLAKE2s hashes",
+			memcmp(hash, expected_hash_of_hashes, HASH_LEN) == 0);
+	return 0;
+}
+
+static int test__blake2s_case(struct test_suite *t __maybe_unused, int subtest __maybe_unused)
+{
+	return test_blake2s();
+}
+
+static int test__strreplace(struct test_suite *t __maybe_unused, int subtest __maybe_unused)
+{
+	TEST_ASSERT_VAL("empty string", test_strreplace(' ', "", "123", ""));
+	TEST_ASSERT_VAL("no match", test_strreplace('5', "123", "4", "123"));
+	TEST_ASSERT_VAL("replace 1", test_strreplace('3', "123", "4", "124"));
+	TEST_ASSERT_VAL("replace 2", test_strreplace('a', "abcabc", "ef", "efbcefbc"));
+	TEST_ASSERT_VAL("replace long", test_strreplace('a', "abcabc", "longlong",
+							"longlongbclonglongbc"));
+
+	return 0;
+}
+
+static struct test_case tests__util[] = {
+	TEST_CASE("String replacement", strreplace),
+	TEST_CASE("BLAKE2s hash", blake2s_case),
+	{ .name = NULL, }
+};
+
+struct test_suite suite__util = {
+	.desc = "util",
+	.test_cases = tests__util,
+};