Documentation: HFS is not a user of magic numbers

In fs/hfs, the only magic is for delineating on-disk block types,
of which HFS_DRVR_DESC_MAGIC HFS_MFS_SUPER_MAGIC are define-only,
but they're out

Documentation: HFS is not a user of magic numbers

In fs/hfs, the only magic is for delineating on-disk block types,
of which HFS_DRVR_DESC_MAGIC HFS_MFS_SUPER_MAGIC are define-only,
but they're out of scope for magic-number.rst

Magic numbers as described there were all removed, along their defines,
in the 2.6.4 "HFS rewrite", pre-git

Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Link: https://lore.kernel.org/r/e67cec702a7ab34a8c5f7966d930d793a097a90f.1663280877.git.nabijaczleweli@nabijaczleweli.xyz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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MIPS: remove define-only GDA_MAGIC, previously magic number

The last user was removed in the 2.6.4 "MIPS mega-patch", pre-git

Found with
grep MAGIC Documentation/process/magic-number.rst | while re

MIPS: remove define-only GDA_MAGIC, previously magic number

The last user was removed in the 2.6.4 "MIPS mega-patch", pre-git

Found with
grep MAGIC Documentation/process/magic-number.rst | while read -r mag _;
do git grep -wF "$mag" | grep -ve '^Documentation.*magic-number.rst:' \
-qe ':#define '"$mag" || git grep -wF "$mag" | while IFS=: read -r f _;
do sed -i '/\b'"$mag"'\b/d' "$f"; done ; done

Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Link: https://lore.kernel.org/r/c2e7510beebdd698e20d0704712e623fad00fc1c.1663280877.git.nabijaczleweli@nabijaczleweli.xyz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Bluetooth: RFCOMM: remove define-only RFCOMM_TTY_MAGIC ex-magic-number

Appeared in its present state in pre-git (2.5.41), never used

Found with
grep MAGIC Documentation/process/magic-number.rst | w

Bluetooth: RFCOMM: remove define-only RFCOMM_TTY_MAGIC ex-magic-number

Appeared in its present state in pre-git (2.5.41), never used

Found with
grep MAGIC Documentation/process/magic-number.rst | while read -r mag _;
do git grep -wF "$mag" | grep -ve '^Documentation.*magic-number.rst:' \
-qe ':#define '"$mag" || git grep -wF "$mag" | while IFS=: read -r f _;
do sed -i '/\b'"$mag"'\b/d' "$f"; done ; done

Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Link: https://lore.kernel.org/r/f6d375201dfd99416ea03b49b3dd40af56c1537e.1663280877.git.nabijaczleweli@nabijaczleweli.xyz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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a.out: remove define-only CMAGIC, previously magic number

The last user was removed in 5.1 in
commit 08300f4402ab ("a.out: remove core dumping support")
but this is part of the UAPI headers, so this

a.out: remove define-only CMAGIC, previously magic number

The last user was removed in 5.1 in
commit 08300f4402ab ("a.out: remove core dumping support")
but this is part of the UAPI headers, so this may want to either wait
until a.out is removed entirely, or be removed from the magic number doc
and silently remain in the header

A cursory glance on DCS didn't show any user code actually using this
value

Found with
grep MAGIC Documentation/process/magic-number.rst | while read -r mag _;
do git grep -wF "$mag" | grep -ve '^Documentation.*magic-number.rst:' \
-qe ':#define '"$mag" || git grep -wF "$mag" | while IFS=: read -r f _;
do sed -i '/\b'"$mag"'\b/d' "$f"; done ; done

Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Link: https://lore.kernel.org/r/9cbea062df7125ef43e2e0b2a67ede6ad1c5f27e.1663280877.git.nabijaczleweli@nabijaczleweli.xyz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Documentation: remove nonexistent magic numbers

The entire file blames back to the start of git
(minus whitespace from the RST translation and a typo fix):
* there are changelog comments for March

Documentation: remove nonexistent magic numbers

The entire file blames back to the start of git
(minus whitespace from the RST translation and a typo fix):
* there are changelog comments for March 1994 through to Linux 2.5.74
* struct tty_ldisc is two pointers nowadays, so naturally no magic
* GDA_MAGIC is defined but unused, and it's been this way
since start-of-git
* M3_CARD_MAGIC isn't defined, because
commit d56b9b9c464a ("[PATCH] The scheduled removal of some OSS
drivers") removed the entire driver in 2006
* CS_CARD_MAGIC likewise since
commit b5d425c97f7d ("more scheduled OSS driver removal") in 2007
* KMALLOC_MAGIC and VMALLOC_MAGIC were removed in
commit e38e0cfa48ac ("[ALSA] Remove kmalloc wrappers"),
six months after start of git
* SLAB_C_MAGIC has never even appeared in git
(removed in 2.4.0-test3pre6)

magic-number.rst is a low-value historial relic at best and
misleading cruft at worst, so start with cleaning out ones that only
appear therein

Automated:
grep MAGIC Documentation/process/magic-number.rst | while read -r mag _;
do git grep -wF "$mag" | grep -vq '^Documentation.*magic-number.rst:' ||
sed -i "/^$mag/d" \
Documentation/{,translations/{zh_CN,zh_TW,it_IT}/}process/magic-number.rst
done

Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Link: https://lore.kernel.org/r/8389a7b85b5c660c6891b1740b5dacc53491a41b.1663280877.git.nabijaczleweli@nabijaczleweli.xyz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

show more ...