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authorLinus Torvalds <torvalds@linux-foundation.org>2026-08-24 08:46:03 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-08-24 08:46:03 -0700
commitcf9610f9116d55c5a66ef9f1faecacabd93a9322 (patch)
tree757a3d280760c654767631cab5ad8af2d86d1848 /fs/ntfs/collate.c
downloadlinux-stable-cf9610f9116d55c5a66ef9f1faecacabd93a9322.tar.gz
linux-stable-cf9610f9116d55c5a66ef9f1faecacabd93a9322.zip
Merge tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrlgrafted
Pull pin control updates from Linus Walleij: "Core changes: - Use the non-blocking mux_state_try_select() in the generic MUX pin control back-end - Free pin maps on pinctrl_generic_to_map() failure in the core helpers New hardware pin control: - Qualcomm Maili TLMM SoC, PMG1110 PMIC, and Eliza LPASS LPI TLMM SoC (this is for the low power audio, LPASS = Low Power Audio SubSystem portions) - Upboard support on top of the Intel pin controller - Apple T6030 and T6031 support (just compatible strings) - Samsung Exynos 8855 SoC - Mediatek MT6858 SoC - Rockchip RK3308B and RV1106 SoCs - Airoha EN7523 and AN7563 SoCs Improvements: - Qualcomm TLMM GPIOs are unconditionally marked as wakeup capable - Qualcomm improvements on top of the Qualcomm PDC (power domain controller) irqchip improvements from tglx:s tree - Qualcomm IPQ806x and IPQ9650 non-urgent pin grop fixups - The NPCM8xx driver has been put into shape fixing many pin and group definitions - Some non-urgent Tegra 264 pin assignments are fixed up - Some non-urgent fixups to Airoha AN7581 and AN7583 registers and pin assignments, missing features etc" * tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (130 commits) dt-bindings: pinctrl: Convert TI DA850 pupd to DT schema pinctrl: meson: sync some modify from A4 pinctrl: meson: a4: Add input enable pin configuration pinctrl: realtek: rtd1625: remove unused group name spdif_sel pinctrl: realtek: rtd1625: fix base_bit for VE4 GPIO 13 dt-bindings: pinctrl: microchip,pic32mzda-pinctrl: Convert to DT schema Revert "Merge branch 'ib-rsk7204' into devel" pinctrl: rockchip: Add RV1106 pinctrl support dt-bindings: pinctrl: rockchip: Add RV1106 compatible pinctrl: rockchip: Decode drive strength in the get function pinctrl: fix PINCTRL_GENERIC_MUX not always being selectable pinctrl: airoha: add support of an7563 SoC dt-bindings: pinctrl: airoha: add support of an7563 pin controller pinctrl: airoha: try to find chip scu node by phandle first pinctrl: airoha: add support of en7523 SoC dt-bindings: pinctrl: airoha: add support of en7523 pin controller pinctrl: airoha: an7583: add support for olt pinmux pinctrl: airoha: an7583: add support for pon_alt pinmux pinctrl: airoha: an7583: add support for npu_uart pinmux dt-bindings: pinctrl: airoha: an7583: add missed features ...
Diffstat (limited to 'fs/ntfs/collate.c')
-rw-r--r--fs/ntfs/collate.c146
1 files changed, 146 insertions, 0 deletions
diff --git a/fs/ntfs/collate.c b/fs/ntfs/collate.c
new file mode 100644
index 000000000..77e340389
--- /dev/null
+++ b/fs/ntfs/collate.c
@@ -0,0 +1,146 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * NTFS kernel collation handling.
+ *
+ * Copyright (c) 2004 Anton Altaparmakov
+ *
+ * Part of this file is based on code from the NTFS-3G.
+ * and is copyrighted by the respective authors below:
+ * Copyright (c) 2004 Anton Altaparmakov
+ * Copyright (c) 2005 Yura Pakhuchiy
+ */
+
+#include "collate.h"
+#include "debug.h"
+#include "ntfs.h"
+
+#include <linux/sort.h>
+
+static int ntfs_collate_binary(struct ntfs_volume *vol,
+ const void *data1, const u32 data1_len,
+ const void *data2, const u32 data2_len)
+{
+ int rc;
+
+ rc = memcmp(data1, data2, min(data1_len, data2_len));
+ if (!rc && (data1_len != data2_len)) {
+ if (data1_len < data2_len)
+ rc = -1;
+ else
+ rc = 1;
+ }
+ return rc;
+}
+
+static int ntfs_collate_ntofs_ulong(struct ntfs_volume *vol,
+ const void *data1, const u32 data1_len,
+ const void *data2, const u32 data2_len)
+{
+ int rc;
+ u32 d1 = le32_to_cpup(data1), d2 = le32_to_cpup(data2);
+
+ if (data1_len != data2_len || data1_len != 4)
+ return -EINVAL;
+
+ if (d1 < d2)
+ rc = -1;
+ else {
+ if (d1 == d2)
+ rc = 0;
+ else
+ rc = 1;
+ }
+ return rc;
+}
+
+/*
+ * ntfs_collate_ntofs_ulongs - Which of two le32 arrays should be listed first
+ * @vol: ntfs volume
+ * @data1: first ulong array to collate
+ * @data1_len: length in bytes of @data1
+ * @data2: second ulong array to collate
+ * @data2_len: length in bytes of @data2
+ *
+ * Returns: -1, 0 or 1 depending of how the arrays compare
+ */
+static int ntfs_collate_ntofs_ulongs(struct ntfs_volume *vol,
+ const void *data1, const u32 data1_len,
+ const void *data2, const u32 data2_len)
+{
+ int len;
+ const __le32 *p1 = data1, *p2 = data2;
+ u32 d1, d2;
+
+ if (data1_len != data2_len || data1_len & 3) {
+ ntfs_error(vol->sb, "data1_len or data2_len not valid\n");
+ return -1;
+ }
+
+ len = data1_len;
+ do {
+ d1 = le32_to_cpup(p1);
+ p1++;
+ d2 = le32_to_cpup(p2);
+ p2++;
+ } while (d1 == d2 && (len -= 4) > 0);
+ return cmp_int(d1, d2);
+}
+
+/*
+ * ntfs_collate_file_name - Which of two filenames should be listed first
+ * @vol: ntfs volume
+ * @data1: first filename to collate
+ * @data1_len: length in bytes of @data1(unused)
+ * @data2: second filename to collate
+ * @data2_len: length in bytes of @data2(unused)
+ */
+static int ntfs_collate_file_name(struct ntfs_volume *vol,
+ const void *data1, const u32 data1_len,
+ const void *data2, const u32 data2_len)
+{
+ int rc;
+
+ rc = ntfs_file_compare_values(data1, data2, -EINVAL,
+ IGNORE_CASE, vol->upcase, vol->upcase_len);
+ if (!rc)
+ rc = ntfs_file_compare_values(data1, data2,
+ -EINVAL, CASE_SENSITIVE, vol->upcase, vol->upcase_len);
+ return rc;
+}
+
+/*
+ * ntfs_collate - collate two data items using a specified collation rule
+ * @vol: ntfs volume to which the data items belong
+ * @cr: collation rule to use when comparing the items
+ * @data1: first data item to collate
+ * @data1_len: length in bytes of @data1
+ * @data2: second data item to collate
+ * @data2_len: length in bytes of @data2
+ *
+ * Collate the two data items @data1 and @data2 using the collation rule @cr
+ * and return -1, 0, ir 1 if @data1 is found, respectively, to collate before,
+ * to match, or to collate after @data2. return -EINVAL if an error occurred.
+ */
+int ntfs_collate(struct ntfs_volume *vol, __le32 cr,
+ const void *data1, const u32 data1_len,
+ const void *data2, const u32 data2_len)
+{
+ switch (le32_to_cpu(cr)) {
+ case le32_to_cpu(COLLATION_BINARY):
+ return ntfs_collate_binary(vol, data1, data1_len,
+ data2, data2_len);
+ case le32_to_cpu(COLLATION_FILE_NAME):
+ return ntfs_collate_file_name(vol, data1, data1_len,
+ data2, data2_len);
+ case le32_to_cpu(COLLATION_NTOFS_ULONG):
+ return ntfs_collate_ntofs_ulong(vol, data1, data1_len,
+ data2, data2_len);
+ case le32_to_cpu(COLLATION_NTOFS_ULONGS):
+ return ntfs_collate_ntofs_ulongs(vol, data1, data1_len,
+ data2, data2_len);
+ default:
+ ntfs_error(vol->sb, "Unknown collation rule 0x%x",
+ le32_to_cpu(cr));
+ return -EINVAL;
+ }
+}