kernel/linux.git/fs/nls, branch v6.12.80

fs/nls: Fix inconsistency between utf8_to_utf32() and utf32_to_utf8()

2025-12-18T12:55:18+00:00

[ Upstream commit c36f9d7b2869a003a2f7d6ff2c6bac9e62fd7d68 ] After commit 25524b619029 ("fs/nls: Fix utf16 to utf8 conversion"), the return values of utf8_to_utf32() and utf32_to_utf8() are inconsistent when encountering an error: utf8_to_utf32() returns -1, while utf32_to_utf8() returns errno codes. Fix this inconsistency by modifying utf8_to_utf32() to return errno codes as well. Fixes: 25524b619029 ("fs/nls: Fix utf16 to utf8 conversion") Suggested-by: Andy Shevchenko Reviewed-by: Andy Shevchenko Signed-off-by: Armin Wolf Link: https://patch.msgid.link/20251129111535.8984-1-W_Armin@gmx.de Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen Signed-off-by: Sasha Levin

fs/nls: Fix utf16 to utf8 conversion

2025-12-18T12:55:16+00:00

[ Upstream commit 25524b6190295577e4918c689644451365e6466d ] Currently the function responsible for converting between utf16 and utf8 strings will ignore any characters that cannot be converted. This however also includes multi-byte characters that do not fit into the provided string buffer. This can cause problems if such a multi-byte character is followed by a single-byte character. In such a case the multi-byte character might be ignored when the provided string buffer is too small, but the single-byte character might fit and is thus still copied into the resulting string. Fix this by stop filling the provided string buffer once a character does not fit. In order to be able to do this extend utf32_to_utf8() to return useful errno codes instead of -1. Fixes: 74675a58507e ("NLS: update handling of Unicode") Signed-off-by: Armin Wolf Link: https://patch.msgid.link/20251111131125.3379-2-W_Armin@gmx.de Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen Signed-off-by: Sasha Levin

move asm/unaligned.h to linux/unaligned.h

2024-10-02T21:23:23+00:00

asm/unaligned.h is always an include of asm-generic/unaligned.h; might as well move that thing to linux/unaligned.h and include that - there's nothing arch-specific in that header. auto-generated by the following: for i in `git grep -l -w asm/unaligned.h`; do sed -i -e "s/asm\/unaligned.h/linux\/unaligned.h/" $i done for i in `git grep -l -w asm-generic/unaligned.h`; do sed -i -e "s/asm-generic\/unaligned.h/linux\/unaligned.h/" $i done git mv include/asm-generic/unaligned.h include/linux/unaligned.h git mv tools/include/asm-generic/unaligned.h tools/include/linux/unaligned.h sed -i -e "/unaligned.h/d" include/asm-generic/Kbuild sed -i -e "s/__ASM_GENERIC/__LINUX/" include/linux/unaligned.h tools/include/linux/unaligned.h

fs: nls: add missing MODULE_DESCRIPTION() macros

2024-06-03T14:37:07+00:00

Fix the following allmodconfig "make W=1" issues: WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/mac-celtic.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/mac-centeuro.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/mac-croatian.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/mac-cyrillic.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/mac-gaelic.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/mac-greek.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/mac-iceland.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/mac-inuit.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/mac-romanian.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/mac-roman.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/mac-turkish.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_ascii.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_cp1250.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_cp1251.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_cp1255.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_cp437.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_cp737.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_cp775.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_cp850.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_cp852.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_cp855.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_cp857.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_cp860.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_cp861.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_cp862.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_cp863.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_cp864.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_cp865.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_cp866.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_cp869.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_cp874.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_cp932.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_cp936.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_cp949.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_cp950.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_euc-jp.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_iso8859-13.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_iso8859-14.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_iso8859-15.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_iso8859-1.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_iso8859-2.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_iso8859-3.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_iso8859-4.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_iso8859-5.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_iso8859-6.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_iso8859-7.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_iso8859-9.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_koi8-r.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_koi8-ru.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_koi8-u.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_ucs2_utils.o WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_utf8.o Signed-off-by: Jeff Johnson Link: https://lore.kernel.org/r/20240516-md-fs-nls-v1-1-ed540d8239bf@quicinc.com Reviewed-by: Jan Kara Signed-off-by: Christian Brauner

nls: Hide new NLS_UCS2_UTILS

2023-08-31T17:07:34+00:00

NLS_UCS2_UTILS is an option selected by filesystems that need it, don't expose it to users. Fixes: 089f7f591348 ("fs/smb: Swing unicode common code from smb->NLS") Suggested-by: Linus Torvalds Signed-off-by: Dr. David Alan Gilbert Signed-off-by: Steve French

fs/jfs: Use common ucs2 upper case table

2023-08-30T13:55:52+00:00

Use the UCS-2 upper case tables from nls, that are shared with smb. This code in JFS is hard to test, so we're only reusing the same tables (which are identical), not trying to reuse the rest of the helper functions. Signed-off-by: Dr. David Alan Gilbert Reviewed-by: Dave Kleikamp Signed-off-by: Steve French

fs/smb: Swing unicode common code from smb->NLS

2023-08-30T13:55:51+00:00

Swing most of the inline functions and unicode tables into nls from the copy in smb/server. This is UCS-2 rather than most of the rest of the code in NLS, but it currently seems like the best place for it. The actual unicode.c implementations vary much more between server and client so they're unmoved. Signed-off-by: Dr. David Alan Gilbert Reviewed-by: Dave Kleikamp Signed-off-by: Steve French

fs/nls: make load_nls() take a const parameter

2023-07-25T05:30:02+00:00

load_nls() take a char * parameter, use it to find nls module in list or construct the module name to load it. This change make load_nls() take a const parameter, so we don't need do some cast like this: ses->local_nls = load_nls((char *)ctx->local_nls->charset); Suggested-by: Stephen Rothwell Signed-off-by: Winston Wen Reviewed-by: Paulo Alcantara Reviewed-by: Christian Brauner Signed-off-by: Steve French

treewide: replace '---help---' in Kconfig files with 'help'

2020-06-13T16:57:21+00:00

Since commit 84af7a6194e4 ("checkpatch: kconfig: prefer 'help' over '---help---'"), the number of '---help---' has been gradually decreasing, but there are still more than 2400 instances. This commit finishes the conversion. While I touched the lines, I also fixed the indentation. There are a variety of indentation styles found. a) 4 spaces + '---help---' b) 7 spaces + '---help---' c) 8 spaces + '---help---' d) 1 space + 1 tab + '---help---' e) 1 tab + '---help---' (correct indentation) f) 1 tab + 1 space + '---help---' g) 1 tab + 2 spaces + '---help---' In order to convert all of them to 1 tab + 'help', I ran the following commend: $ find . -name 'Kconfig*' | xargs sed -i 's/^[[:space:]]*---help---/\thelp/' Signed-off-by: Masahiro Yamada

treewide: Add SPDX license identifier - Makefile/Kconfig

2019-05-21T08:50:46+00:00

Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman