kernel/linux.git/drivers/tty/vt/ucs.c, branch v6.18.21

vt: fix kernel-doc warnings in ucs_get_fallback()

2025-06-19T11:27:36+00:00

Use the correct function parameter name in ucs_get_fallback() to prevent kernel-doc warnings: Warning: drivers/tty/vt/ucs.c:218 function parameter 'cp' not described in 'ucs_get_fallback' Warning: drivers/tty/vt/ucs.c:218 Excess function parameter 'base' description in 'ucs_get_fallback' Fixes: fe26933cf1e1 ("vt: add ucs_get_fallback()") Signed-off-by: Randy Dunlap Cc: Nicolas Pitre Cc: Greg Kroah-Hartman Cc: Jiri Slaby Cc: linux-serial@vger.kernel.org Reviewed-by: Nicolas Pitre . Link: https://lore.kernel.org/r/20250611020229.2650595-1-rdunlap@infradead.org Signed-off-by: Greg Kroah-Hartman

vt: process the full-width ASCII fallback range programmatically

2025-05-21T11:39:45+00:00

This shaves about 170 bytes from ucs.o. Signed-off-by: Nicolas Pitre Link: https://lore.kernel.org/r/20250507141535.40655-9-nico@fluxnic.net Signed-off-by: Greg Kroah-Hartman

vt: add ucs_get_fallback()

2025-05-21T11:39:45+00:00

This is the code querying the newly introduced tables. Signed-off-by: Nicolas Pitre Link: https://lore.kernel.org/r/20250507141535.40655-7-nico@fluxnic.net Signed-off-by: Greg Kroah-Hartman

vt: ucs.c: fix misappropriate in_range() usage

2025-05-21T11:39:45+00:00

The in_range() helper accepts a start and a length, not a start and an end. Signed-off-by: Nicolas Pitre Reviewed-by: Jiri Slaby Link: https://lore.kernel.org/r/20250507141535.40655-2-nico@fluxnic.net Signed-off-by: Greg Kroah-Hartman

vt: refresh ucs_width_table.h and adjust code in ucs.c accordingly

2025-04-26T09:22:04+00:00

Width tables are now split into BMP (16-bit) and non-BMP (above 16-bit). This reduces the corresponding text size by 20-25%. Note: scripts/checkpatch.pl complains about "... exceeds 100 columns". Please ignore. Signed-off-by: Nicolas Pitre Reviewed-by: Jiri Slaby Link: https://lore.kernel.org/r/20250417184849.475581-14-nico@fluxnic.net Signed-off-by: Greg Kroah-Hartman

vt: support Unicode recomposition

2025-04-26T09:22:04+00:00

Try replacing any decomposed Unicode sequence by the corresponding recomposed code point. Code point to glyph correspondance works best after recomposition, and this apply mostly to single-width code points therefore we can't preserve them in their decomposed form anyway. Signed-off-by: Nicolas Pitre Reviewed-by: Jiri Slaby Link: https://lore.kernel.org/r/20250417184849.475581-10-nico@fluxnic.net Signed-off-by: Greg Kroah-Hartman

vt: use new tables in ucs.c

2025-04-26T09:22:03+00:00

This removes the table from ucs.c and substitutes the generated tables from ucs_width_table.h providing comprehensive ranges for double-width and zero-width Unicode code points. Also implements ucs_is_zero_width() to query the new zero-width table. Signed-off-by: Nicolas Pitre Reviewed-by: Jiri Slaby Link: https://lore.kernel.org/r/20250417184849.475581-7-nico@fluxnic.net Signed-off-by: Greg Kroah-Hartman

vt: move unicode processing to a separate file

2025-04-26T09:22:03+00:00

This will make it easier to maintain. Also make it depend on CONFIG_CONSOLE_TRANSLATIONS. Signed-off-by: Nicolas Pitre Reviewed-by: Jiri Slaby Link: https://lore.kernel.org/r/20250417184849.475581-3-nico@fluxnic.net Signed-off-by: Greg Kroah-Hartman