1104709 Commits

Author SHA1 Message Date
Jiri Slaby
3315f1aa85 tty/vt: consolemap: saner variable names in con_copy_unimap()
The function uses too vague variable names like i, j, k for iterators, p,
q, p1, p2 for pointers etc.

Rename all these, so that it is clear what is going on:
- dict: for dictionaries.
- d, r, g: for dir, row, glyph iterators -- these are unsigned now.
- dir, row: for directory and row pointers.
- glyph: for the glyph.
- and so on...

This is a lot of shuffling, but the result pays off, IMO.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220607104946.18710-27-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10 13:37:03 +02:00
Jiri Slaby
447e9a7c66 tty/vt: consolemap: saner variable names in con_release_unimap()
The function uses too vague variable names like i, j, k for iterators, p,
q, p1, p2 for pointers etc.

Rename all these, so that it is clear what is going on:
- dict: for dictionaries.
- d, r, g: for dir, row, glyph iterators -- these are unsigned now.
- dir, row: for directory and row pointers.
- glyph: for the glyph.
- and so on...

This is a lot of shuffling, but the result pays off, IMO.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220607104946.18710-26-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10 13:37:02 +02:00
Jiri Slaby
cded789c68 tty/vt: consolemap: saner variable names in con_unshare_unimap()
The function uses too vague variable names like i, j, k for iterators, p,
q, p1, p2 for pointers etc.

Rename all these, so that it is clear what is going on:
- dict: for dictionaries.
- d, r, g: for dir, row, glyph iterators -- these are unsigned now.
- dir, row: for directory and row pointers.
- glyph: for the glyph.
- and so on...

This is a lot of shuffling, but the result pays off, IMO.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220607104946.18710-25-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10 13:37:02 +02:00
Jiri Slaby
01ddc0dabd tty/vt: consolemap: saner variable names in con_do_clear_unimap()
The function uses too vague variable names like i, j, k for iterators, p,
q, p1, p2 for pointers etc.

Rename all these, so that it is clear what is going on:
- dict: for dictionaries.
- d, r, g: for dir, row, glyph iterators -- these are unsigned now.
- dir, row: for directory and row pointers.
- glyph: for the glyph.
- and so on...

This is a lot of shuffling, but the result pays off, IMO.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220607104946.18710-24-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10 13:37:02 +02:00
Jiri Slaby
c3fd9f7121 tty/vt: consolemap: saner variable names in con_unify_unimap()
The function uses too vague variable names like i, j, k for iterators, p,
q, p1, p2 for pointers etc.

Rename all these, so that it is clear what is going on:
- dict: for dictionaries.
- d, r, g: for dir, row, glyph iterators -- these are unsigned now.
- dir, row: for directory and row pointers.
- glyph: for the glyph.
- and so on...

This is a lot of shuffling, but the result pays off, IMO.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220607104946.18710-23-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10 13:37:02 +02:00
Jiri Slaby
d4a2245b8b tty/vt: consolemap: saner variable names in con_insert_unipair()
The function uses too vague variable names like i, j, k for iterators, p,
q, p1, p2 for pointers etc.

Rename all these, so that it is clear what is going on:
- dict: for dictionaries.
- d, r, g: for dir, row, glyph iterators -- these are unsigned now.
- dir, row: for directory and row pointers.
- glyph: for the glyph.
- and so on...

This is a lot of shuffling, but the result pays off, IMO.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220607104946.18710-22-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10 13:37:02 +02:00
Jiri Slaby
61fe4a6bb1 tty/vt: consolemap: saner variable names in conv_uni_to_pc()
The function uses too vague variable names like i, j, k for iterators, p,
q, p1, p2 for pointers etc.

Rename all these, so that it is clear what is going on:
- dict: for dictionaries.
- d, r, g: for dir, row, glyph iterators -- these are unsigned now.
- dir, row: for directory and row pointers.
- glyph: for the glyph.
- and so on...

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220607104946.18710-21-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10 13:37:02 +02:00
Jiri Slaby
50c92a1b2d tty/vt: consolemap: saner variable names in set_inverse_trans_unicode()
The function uses too vague variable names like i, j, k for iterators, p,
q, p1, p2 for pointers etc.

Rename all these, so that it is clear what is going on:
- dict: for dictionaries.
- d, r, g: for dir, row, glyph iterators -- these are unsigned now.
- dir, row: for directory and row pointers.
- glyph: for the glyph.
- and so on...

This is a lot of shuffling, but the result pays off, IMO.

Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220607104946.18710-20-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10 13:37:02 +02:00
Jiri Slaby
dca1419173 tty/vt: consolemap: extract dict unsharing to con_unshare_unimap()
The code in con_set_unimap() is too nested. Extract its obvious part
into a separate function and name it after what the code does:
con_unshare_unimap().

Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220607104946.18710-19-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10 13:37:02 +02:00
Jiri Slaby
f052f62c23 tty/vt: consolemap: remove glyph < 0 check from set_inverse_trans_unicode()
glyph is now an int casted from u16. It can never be negative. So remove
the check and type glyph as u16 properly in set_inverse_trans_unicode().

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220607104946.18710-18-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10 13:37:02 +02:00
Jiri Slaby
5a904a936b tty/vt: consolemap: introduce enum translation_map and use it
Again, instead of magic constants in the code, declare an enum and be a
little bit more explicit. Both in the translations definition and in the
loops etc.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220607104946.18710-17-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10 13:37:02 +02:00
Jiri Slaby
949fafcd7f tty/vt: consolemap: check put_user() in con_get_unimap()
Only the return value of copy_to_user() is checked in con_get_unimap().
Do the same for put_user() of the count too.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220607104946.18710-16-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10 13:37:02 +02:00
Jiri Slaby
cb47d81f0f tty/vt: consolemap: make p1 increment less confusing in con_get_unimap()
p2 is already incremented like this few lines below, so do the same for
p1. This makes the code easier to follow.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220607104946.18710-15-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10 13:37:02 +02:00
Jiri Slaby
6364d39136 tty/vt: consolemap: make con_get_unimap() more readable
The indentation is completely broken in con_get_unimap(). Reorder the
code using "if (!cond) continue;"s so that the code makes sense. Switch
also the "p" assignment and add a short path using goto. This makes the
code readable again.

Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220607104946.18710-14-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10 13:37:02 +02:00
Jiri Slaby
6e4e8d7466 tty/vt: consolemap: make con_set_unimap() more readable
The indentation was completely broken in con_set_unimap(). Reorder the
code using 'if (!cond) continue;'s so that the code makes sense. Not
that it is perfect now, but it can be followed at least. More cleanup to
come. And remove all those useless whitespaces at the EOLs too.

Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220607104946.18710-13-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10 13:37:01 +02:00
Jiri Slaby
acf90b4d52 tty/vt: consolemap: use sizeof(*pointer) instead of sizeof(type)
It is preferred to use sizeof(*pointer) instead of sizeof(type). First,
the type of the variable can change and one needs not change the former
(unlike the latter). Second, the latter is error-prone due to (u16),
(u16 *), and (u16 **) mixture here.

Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220607104946.18710-12-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10 13:37:01 +02:00
Jiri Slaby
32bd78fc49 tty/vt: consolemap: zero uni_pgdir using kcalloc()
The newly allocated p->uni_pgdir[n] is initialized to NULLs right after
a kmalloc_array() allocation. Combine these two using kcalloc().

Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220607104946.18710-11-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10 13:37:01 +02:00
Jiri Slaby
9254365443 tty/vt: consolemap: introduce UNI_*() macros
The code currently does shift, OR, and AND logic directly in the code.
It is not much obvious what happens there. Therefore define four macros
for that purpose and use them in the code. We use GENMASK() so that it
is clear which bits serve what purpose:
- UNI_GLYPH: bits  0.. 5
- UNI_ROW:   bits  6..10
- UNI_DIR:   bits 11..31

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220607104946.18710-10-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10 13:37:01 +02:00
Jiri Slaby
ad8a2142ba tty/vt: consolemap: use | for binary addition
Unicode letters are composed as a bit shifts and sums of three values.
Use "|" and not "+" for these bit operations. The former is indeed more
appropriate.

Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220607104946.18710-9-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10 13:37:01 +02:00
Jiri Slaby
e16cb6fe31 tty/vt: consolemap: one line = one statement
Some lines combine more statements on one line. This makes the code hard
to follow. Do it properly in the "one line = one statement" fashion.

Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220607104946.18710-8-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10 13:37:01 +02:00
Jiri Slaby
d9ebb906a4 tty/vt: consolemap: make parameters of inverse_translate() saner
- int use_unicode -> bool: it's used as bool at some places already, so
  make it explicit.
- int glyph -> u16: every caller passes a u16 in. So make it explicit
  too. And remove a negative check from inverse_translate() as it never
  could be negative.

Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220607104946.18710-7-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10 13:37:01 +02:00
Jiri Slaby
f827c754f9 tty/vt: consolemap: convert macros to static inlines
This commit changes !CONFIG_CONSOLE_TRANSLATIONS definitions to real
(inline) functions. So the commit:
* makes type checking much stronger,
* removes the need of many parentheses and casts, and
* makes the code more readable.

Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220607104946.18710-6-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10 13:37:01 +02:00
Jiri Slaby
0b75f7968d tty/vt: consolemap: remove extern from function decls
The extern keyword is not needed for function declarations. Remove it,
so that the consolemap header conforms to other tty headers.

Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220607104946.18710-5-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10 13:37:01 +02:00
Jiri Slaby
2097dc2273 tty/vt: consolemap: decrypt inverse_translate()
Fix invalid indentation and demystify the code by removing superfluous
"else"s. The "else"s are unneeded as they always follow an "if"-true
branch containing a "return". The code is now way more readable.

Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220607104946.18710-4-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10 13:37:01 +02:00
Jiri Slaby
db8f597a47 tty/vt: consolemap: define UNI_* macros for constants
The code uses constants for sizes of dictionary substructures on many
places. Define 3 macros and use them in the code, so that loop bounds,
local variables and the dictionary always match. (And the loop bounds
are obvious now too.)

Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220607104946.18710-3-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10 13:37:01 +02:00
Jiri Slaby
4173f018aa tty/vt: consolemap: rename and document struct uni_pagedir
struct uni_pagedir contains 32 unicode page directories, so the name of
the structure is a bit misleading. Rename the structure to uni_pagedict,
so it looks like this:
struct uni_pagedict
  -> 32 page dirs
     -> 32 rows
       -> 64 glyphs

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220607104946.18710-2-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10 13:37:01 +02:00
Jiri Slaby
17945d317a tty/vt: consolemap: use ARRAY_SIZE()
The code uses constants as bounds in loops. Use ARRAY_SIZE() with
appropriate parameters instead. This makes the loop bounds obvious.

Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220607104946.18710-1-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10 13:37:00 +02:00
Jiri Slaby
5c4d7b049d tty/vt: Makefile, add --unicode for loadkeys invocation
For a long time, we generate unicode tables using loadkeys. So fix
Makefile to use that flag too.

Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220602083128.22540-2-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10 13:34:18 +02:00
Jiri Slaby
0d49ee83a4 tty/vt: defkeymap.c_shipped, little unification with loadkeys
loadkeys 2.4.0 currently:
* notes the use of --unicode to the output, and
* uses "unsigned short" for key_maps instead of "ushort".

So make our shipped file consistent with the generated output in this
regard.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220602083128.22540-1-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10 13:34:17 +02:00
Jiri Slaby
7fd6c24bae serial: pmac_zilog: remove unused header
After commit a5ddc498e792 (serial: pmac_zilog: remove unfinished DBDMA
support), the header is unused and can be removed. So do so.

Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Suggested-by: "Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220602083120.22519-1-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10 13:33:57 +02:00
AngeloGioacchino Del Regno
22b10b33b9 dt-bindings: serial: mtk-uart: Convert txt to json-schema
Convert the mtk-uart documentation from freeform text to a json-schema.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220524115019.97246-1-angelogioacchino.delregno@collabora.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10 13:33:43 +02:00
Yang Yingliang
6f3cdf2bf1 serial: pic32: fix missing clk_disable_unprepare() on error in pic32_uart_startup()
Fix the missing clk_disable_unprepare() before return
from pic32_uart_startup() in the error handling case.

Fixes: 157b9394709e ("serial: pic32_uart: Add PIC32 UART driver")
Reported-by: Hulk Robot <hulkci@huawei.com>
Reviewed-by: Jiri Slaby <jirislaby@kernel.org>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20220525021204.2407631-1-yangyingliang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10 13:33:28 +02:00
Julia Lawall
d93e612d13 serial: tegra: fix typos in comments
Spelling mistakes (triple letters) in comments.
Detected with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Link: https://lore.kernel.org/r/20220521111145.81697-23-Julia.Lawall@inria.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10 13:32:54 +02:00
Julia Lawall
da1bb4ed23 tty: fix typos in comments
Spelling mistakes (triple letters) in comments.
Detected with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Link: https://lore.kernel.org/r/20220521111145.81697-95-Julia.Lawall@inria.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10 13:32:52 +02:00
Linus Torvalds
f2906aa863 Linux 5.19-rc1 v5.19-rc1 2022-06-05 17:18:54 -07:00
Linus Torvalds
6684cf4290 fix for breakage in #work.fd this window
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Merge tag 'pull-work.fd-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull file descriptor fix from Al Viro:
 "Fix for breakage in #work.fd this window"

* tag 'pull-work.fd-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  fix the breakage in close_fd_get_file() calling conventions change
2022-06-05 17:14:03 -07:00
Linus Torvalds
815b196c70 Hot fixes for 5.19-rc1.
- fixes for material merged during this merge window
 
 - cc:stable fixes for more longstanding issues
 
 - minor mailmap and MAINTAINERS updates
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Merge tag 'mm-hotfixes-stable-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull mm hotfixes from Andrew Morton:
 "Fixups for various recently-added and longer-term issues and a few
  minor tweaks:

   - fixes for material merged during this merge window

   - cc:stable fixes for more longstanding issues

   - minor mailmap and MAINTAINERS updates"

* tag 'mm-hotfixes-stable-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  mm/oom_kill.c: fix vm_oom_kill_table[] ifdeffery
  x86/kexec: fix memory leak of elf header buffer
  mm/memremap: fix missing call to untrack_pfn() in pagemap_range()
  mm: page_isolation: use compound_nr() correctly in isolate_single_pageblock()
  mm: hugetlb_vmemmap: fix CONFIG_HUGETLB_PAGE_FREE_VMEMMAP_DEFAULT_ON
  MAINTAINERS: add maintainer information for z3fold
  mailmap: update Josh Poimboeuf's email
2022-06-05 17:05:38 -07:00
Linus Torvalds
e17fee8976 A single featurelet for delay accounting. Delayed a bit
because,unusually, it has dependencies on both the mm-stable and
 mm-nonmm-stable queues.
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Merge tag 'mm-nonmm-stable-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull delay-accounting update from Andrew Morton:
 "A single featurette for delay accounting.

  Delayed a bit because, unusually, it had dependencies on both the
  mm-stable and mm-nonmm-stable queues"

* tag 'mm-nonmm-stable-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  delayacct: track delays from write-protect copy
2022-06-05 16:58:27 -07:00
Linus Torvalds
e1cff7002b bluetooth: don't use bitmaps for random flag accesses
The bluetooth code uses our bitmap infrastructure for the two bits (!)
of connection setup flags, and in the process causes odd problems when
it converts between a bitmap and just the regular values of said bits.

It's completely pointless to do things like bitmap_to_arr32() to convert
a bitmap into a u32.  It shoudln't have been a bitmap in the first
place.  The reason to use bitmaps is if you have arbitrary number of
bits you want to manage (not two!), or if you rely on the atomicity
guarantees of the bitmap setting and clearing.

The code could use an "atomic_t" and use "atomic_or/andnot()" to set and
clear the bit values, but considering that it then copies the bitmaps
around with "bitmap_to_arr32()" and friends, there clearly cannot be a
lot of atomicity requirements.

So just use a regular integer.

In the process, this avoids the warnings about erroneous use of
bitmap_from_u64() which were triggered on 32-bit architectures when
conversion from a u64 would access two words (and, surprise, surprise,
only one word is needed - and indeed overkill - for a 2-bit bitmap).

That was always problematic, but the compiler seems to notice it and
warn about the invalid pattern only after commit 0a97953fd221 ("lib: add
bitmap_{from,to}_arr64") changed the exact implementation details of
'bitmap_from_u64()', as reported by Sudip Mukherjee and Stephen Rothwell.

Fixes: fe92ee6425a2 ("Bluetooth: hci_core: Rework hci_conn_params flags")
Link: https://lore.kernel.org/all/YpyJ9qTNHJzz0FHY@debian/
Link: https://lore.kernel.org/all/20220606080631.0c3014f2@canb.auug.org.au/
Link: https://lore.kernel.org/all/20220605162537.1604762-1-yury.norov@gmail.com/
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reported-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Reviewed-by: Yury Norov <yury.norov@gmail.com>
Cc: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Cc: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-06-05 16:28:41 -07:00
Al Viro
40a1926022 fix the breakage in close_fd_get_file() calling conventions change
It used to grab an extra reference to struct file rather than
just transferring to caller the one it had removed from descriptor
table.  New variant doesn't, and callers need to be adjusted.

Reported-and-tested-by: syzbot+47dd250f527cb7bebf24@syzkaller.appspotmail.com
Fixes: 6319194ec57b ("Unify the primitives for file descriptor closing")
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2022-06-05 15:03:03 -04:00
Linus Torvalds
d717180e7f A single fix for x86/SGX to prevent that memory which is allocated for an
SGX enclave is accounted to the wrong memory control group.
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Merge tag 'x86-urgent-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 SGX fix from Thomas Gleixner:
 "A single fix for x86/SGX to prevent that memory which is allocated for
  an SGX enclave is accounted to the wrong memory control group"

* tag 'x86-urgent-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/sgx: Set active memcg prior to shmem allocation
2022-06-05 11:00:43 -07:00
Linus Torvalds
0b7da15c21 Use PAGE_ALIGNED() instead of open coding it in the x86/mm code.
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Merge tag 'x86-mm-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 mm cleanup from Thomas Gleixner:
 "Use PAGE_ALIGNED() instead of open coding it in the x86/mm code"

* tag 'x86-mm-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mm: Use PAGE_ALIGNED(x) instead of IS_ALIGNED(x, PAGE_SIZE)
2022-06-05 10:57:35 -07:00
Linus Torvalds
9784edd73a X86 microcode updates:
- Disable late microcode loading by default. Unless the HW people get
     their act together and provide a required minimum version in the
     microcode header for making a halfways informed decision its just
     lottery and broken.
 
   - Warn and taint the kernel when microcode is loaded late
 
   - Remove the old unused microcode loader interface
 
   - Remove a redundant perf callback from the microcode loader
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Merge tag 'x86-microcode-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 microcode updates from Thomas Gleixner:

 - Disable late microcode loading by default. Unless the HW people get
   their act together and provide a required minimum version in the
   microcode header for making a halfways informed decision its just
   lottery and broken.

 - Warn and taint the kernel when microcode is loaded late

 - Remove the old unused microcode loader interface

 - Remove a redundant perf callback from the microcode loader

* tag 'x86-microcode-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/microcode: Remove unnecessary perf callback
  x86/microcode: Taint and warn on late loading
  x86/microcode: Default-disable late loading
  x86/microcode: Rip out the OLD_INTERFACE
2022-06-05 10:55:23 -07:00
Linus Torvalds
a925128092 A set of small x86 cleanups:
- Remove unused headers in the IDT code
 
   - Kconfig indendation and comment fixes
 
   - Fix all 'the the' typos in one go instead of waiting for bots to fix
     one at a time.
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Merge tag 'x86-cleanups-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 cleanups from Thomas Gleixner:
 "A set of small x86 cleanups:

   - Remove unused headers in the IDT code

   - Kconfig indendation and comment fixes

   - Fix all 'the the' typos in one go instead of waiting for bots to
     fix one at a time"

* tag 'x86-cleanups-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86: Fix all occurences of the "the the" typo
  x86/idt: Remove unused headers
  x86/Kconfig: Fix indentation of arch/x86/Kconfig.debug
  x86/Kconfig: Fix indentation and add endif comments to arch/x86/Kconfig
2022-06-05 10:53:41 -07:00
Linus Torvalds
1fd9f4ce84 Use strlcpy() instead of strscpy() in arch_setup()
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Merge tag 'x86-boot-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 boot update from Thomas Gleixner:
 "Use strlcpy() instead of strscpy() in arch_setup()"

* tag 'x86-boot-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/setup: Use strscpy() to replace deprecated strlcpy()
2022-06-05 10:49:42 -07:00
Linus Torvalds
c049ecc523 Clockevent/clocksource updates:
- Device tree bindings for MT8186
 
    - Tell the kernel that the RISC-V SBI timer stops in deeper power states
 
    - Make device tree parsing in sp804 more robust
 
    - Dead code removal and tiny fixes here and there
 
    - Add the missing SPDX identifiers
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Merge tag 'timers-core-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull clockevent/clocksource updates from Thomas Gleixner:

 - Device tree bindings for MT8186

 - Tell the kernel that the RISC-V SBI timer stops in deeper power
   states

 - Make device tree parsing in sp804 more robust

 - Dead code removal and tiny fixes here and there

 - Add the missing SPDX identifiers

* tag 'timers-core-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  clocksource/drivers/oxnas-rps: Fix irq_of_parse_and_map() return value
  clocksource/drivers/timer-ti-dm: Remove unnecessary NULL check
  clocksource/drivers/timer-sun5i: Convert to SPDX identifier
  clocksource/drivers/timer-sun4i: Convert to SPDX identifier
  clocksource/drivers/pistachio: Convert to SPDX identifier
  clocksource/drivers/orion: Convert to SPDX identifier
  clocksource/drivers/lpc32xx: Convert to SPDX identifier
  clocksource/drivers/digicolor: Convert to SPDX identifier
  clocksource/drivers/armada-370-xp: Convert to SPDX identifier
  clocksource/drivers/mips-gic-timer: Convert to SPDX identifier
  clocksource/drivers/jcore: Convert to SPDX identifier
  clocksource/drivers/bcm_kona: Convert to SPDX identifier
  clocksource/drivers/sp804: Avoid error on multiple instances
  clocksource/drivers/riscv: Events are stopped during CPU suspend
  clocksource/drivers/ixp4xx: Drop boardfile probe path
  dt-bindings: timer: Add compatible for Mediatek MT8186
2022-06-05 10:47:06 -07:00
Linus Torvalds
bc1e02c3e5 Fix the fallout of sysctl code move which placed the init function wrong.
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Merge tag 'sched-urgent-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler fix from Thomas Gleixner:
 "Fix the fallout of sysctl code move which placed the init function
  wrong"

* tag 'sched-urgent-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/autogroup: Fix sysctl move
2022-06-05 10:42:40 -07:00
Linus Torvalds
fa11c28046 Two small perf updates:
- Make the ICL event constraints match reality
 
   - Remove a unused local variable
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Merge tag 'perf-urgent-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf fixes from Thomas Gleixner:

  - Make the ICL event constraints match reality

  - Remove a unused local variable

* tag 'perf-urgent-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/core: Remove unused local variable
  perf/x86/intel: Fix event constraints for ICL
2022-06-05 10:40:31 -07:00
Linus Torvalds
5cc47d4a92 Trivial indentation fix in Kconfig
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Merge tag 'perf-core-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf fixlet from Thomas Gleixner:
 "Trivial indentation fix in Kconfig"

* tag 'perf-core-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/Kconfig: Fix indentation in the Kconfig file
2022-06-05 10:39:20 -07:00
Linus Torvalds
44688ffd11 A set of objtool fixes:
- Handle __ubsan_handle_builtin_unreachable() correctly and treat it as
     noreturn.
 
   - Allow architectures to select uaccess validation
 
   - Use the non-instrumented bit test for test_cpu_has() to prevent escape
     from non-instrumentable regions.
 
   - Use arch_ prefixed atomics for JUMP_LABEL=n builds to prevent escape
     from non-instrumentable regions.
 
   - Mark a few tiny inline as __always_inline to prevent GCC from bringing
     them out of line and instrumenting them.
 
   - Mark the empty stub context_tracking_enabled() as always inline as GCC
     brings them out of line and instruments the empty shell.
 
   - Annotate ex_handler_msr_mce() as dead end
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Merge tag 'objtool-urgent-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull objtool fixes from Thomas Gleixner:

 - Handle __ubsan_handle_builtin_unreachable() correctly and treat it as
   noreturn

 - Allow architectures to select uaccess validation

 - Use the non-instrumented bit test for test_cpu_has() to prevent
   escape from non-instrumentable regions

 - Use arch_ prefixed atomics for JUMP_LABEL=n builds to prevent escape
   from non-instrumentable regions

 - Mark a few tiny inline as __always_inline to prevent GCC from
   bringing them out of line and instrumenting them

 - Mark the empty stub context_tracking_enabled() as always inline as
   GCC brings them out of line and instruments the empty shell

 - Annotate ex_handler_msr_mce() as dead end

* tag 'objtool-urgent-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/extable: Annotate ex_handler_msr_mce() as a dead end
  context_tracking: Always inline empty stubs
  x86: Always inline on_thread_stack() and current_top_of_stack()
  jump_label,noinstr: Avoid instrumentation for JUMP_LABEL=n builds
  x86/cpu: Elide KCSAN for cpu_has() and friends
  objtool: Mark __ubsan_handle_builtin_unreachable() as noreturn
  objtool: Add CONFIG_HAVE_UACCESS_VALIDATION
2022-06-05 09:45:27 -07:00