kernel/linux.git/fs/unicode/utf8data.c_shipped, branch v6.6.131

Revert "unicode: Don't special case ignorable code points"

2024-12-14T19:00:20+00:00

[ Upstream commit 231825b2e1ff6ba799c5eaf396d3ab2354e37c6b ] This reverts commit 5c26d2f1d3f5e4be3e196526bead29ecb139cf91. It turns out that we can't do this, because while the old behavior of ignoring ignorable code points was most definitely wrong, we have case-folding filesystems with on-disk hash values with that wrong behavior. So now you can't look up those names, because they hash to something different. Of course, it's also entirely possible that in the meantime people have created *new* files with the new ("more correct") case folding logic, and reverting will just make other things break. The correct solution is to not do case folding in filesystems, but sadly, people seem to never really understand that. People still see it as a feature, not a bug. Reported-by: Qi Han Link: https://bugzilla.kernel.org/show_bug.cgi?id=219586 Cc: Gabriel Krisman Bertazi Requested-by: Jaegeuk Kim Signed-off-by: Linus Torvalds Signed-off-by: Sasha Levin

unicode: Don't special case ignorable code points

2024-10-17T13:24:07+00:00

commit 5c26d2f1d3f5e4be3e196526bead29ecb139cf91 upstream. We don't need to handle them separately. Instead, just let them decompose/casefold to themselves. Signed-off-by: Gabriel Krisman Bertazi Signed-off-by: Greg Kroah-Hartman

unicode: Add utf8-data module

2021-10-12T14:41:39+00:00

utf8data.h contains a large database table which is an auto-generated decodification trie for the unicode normalization functions. Allow building it into a separate module. Based on a patch from Shreeya Patel . Signed-off-by: Christoph Hellwig Signed-off-by: Gabriel Krisman Bertazi