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>

diff --git a/Documentation/process/magic-number.rst b/Documentation/process/magic-number.rst
index eb2db3608a152c872f7ad951e778ee8be9958aeb..f48c6c6efaf718b1f10c278f9adf01ab0986a31f 100644 (file)
--- a/Documentation/process/magic-number.rst
+++ b/Documentation/process/magic-number.rst
@@ -69,7 +69,6 @@ Changelog::
 Magic Name            Number           Structure                File
 ===================== ================ ======================== ==========================================
 PG_MAGIC              'P'              pg_{read,write}_hdr      ``include/linux/pg.h``
-CMAGIC                0x0111           user                     ``include/linux/a.out.h``
 HDLC_MAGIC            0x239e           n_hdlc                   ``drivers/char/n_hdlc.c``
 APM_BIOS_MAGIC        0x4101           apm_user                 ``arch/x86/kernel/apm_32.c``
 FASYNC_MAGIC          0x4601           fasync_struct            ``include/linux/fs.h``

diff --git a/Documentation/translations/it_IT/process/magic-number.rst b/Documentation/translations/it_IT/process/magic-number.rst
index 86ef47906f37005ae0d3bf7d45335be83f6a34a6..27f60133fbe5ff027d37ea271a86233ef5ec8eec 100644 (file)
--- a/Documentation/translations/it_IT/process/magic-number.rst
+++ b/Documentation/translations/it_IT/process/magic-number.rst
@@ -75,7 +75,6 @@ Registro dei cambiamenti::
 Nome magico           Numero           Struttura                File
 ===================== ================ ======================== ==========================================
 PG_MAGIC              'P'              pg_{read,write}_hdr      ``include/linux/pg.h``
-CMAGIC                0x0111           user                     ``include/linux/a.out.h``
 HDLC_MAGIC            0x239e           n_hdlc                   ``drivers/char/n_hdlc.c``
 APM_BIOS_MAGIC        0x4101           apm_user                 ``arch/x86/kernel/apm_32.c``
 FASYNC_MAGIC          0x4601           fasync_struct            ``include/linux/fs.h``

diff --git a/Documentation/translations/zh_CN/process/magic-number.rst b/Documentation/translations/zh_CN/process/magic-number.rst
index cbefdcbfbf5349a5b69b3318f3f2f8783ecf30d7..520cc5cf4d63a5f5a23189fc42e8d4867ea6afb4 100644 (file)
--- a/Documentation/translations/zh_CN/process/magic-number.rst
+++ b/Documentation/translations/zh_CN/process/magic-number.rst
@@ -58,7 +58,6 @@ Linux 魔术数
 魔术数名              数字             结构                     文件
 ===================== ================ ======================== ==========================================
 PG_MAGIC              'P'              pg_{read,write}_hdr      ``include/linux/pg.h``
-CMAGIC                0x0111           user                     ``include/linux/a.out.h``
 HDLC_MAGIC            0x239e           n_hdlc                   ``drivers/char/n_hdlc.c``
 APM_BIOS_MAGIC        0x4101           apm_user                 ``arch/x86/kernel/apm_32.c``
 FASYNC_MAGIC          0x4601           fasync_struct            ``include/linux/fs.h``

diff --git a/Documentation/translations/zh_TW/process/magic-number.rst b/Documentation/translations/zh_TW/process/magic-number.rst
index 7fd6e494467b65efb141ec5cc4494944650c1d6c..7d6debd0117e4810e15a7c66bedd3f804b329732 100644 (file)
--- a/Documentation/translations/zh_TW/process/magic-number.rst
+++ b/Documentation/translations/zh_TW/process/magic-number.rst
@@ -61,7 +61,6 @@ Linux 魔術數
 魔術數名              數字             結構                     文件
 ===================== ================ ======================== ==========================================
 PG_MAGIC              'P'              pg_{read,write}_hdr      ``include/linux/pg.h``
-CMAGIC                0x0111           user                     ``include/linux/a.out.h``
 HDLC_MAGIC            0x239e           n_hdlc                   ``drivers/char/n_hdlc.c``
 APM_BIOS_MAGIC        0x4101           apm_user                 ``arch/x86/kernel/apm_32.c``
 FASYNC_MAGIC          0x4601           fasync_struct            ``include/linux/fs.h``

diff --git a/include/uapi/linux/a.out.h b/include/uapi/linux/a.out.h
index 5fafde3798e57cd6bd05b34e9831de392432ea04..bb15da96df2a10f34964e820fbaded2d2be96b25 100644 (file)
--- a/include/uapi/linux/a.out.h
+++ b/include/uapi/linux/a.out.h
@@ -70,9 +70,6 @@ enum machine_type {
    The first page is unmapped to help trap NULL pointer references */
 #define QMAGIC 0314
 
-/* Code indicating core file.  */
-#define CMAGIC 0421
-
 #if !defined (N_BADMAG)
 #define N_BADMAG(x)      (N_MAGIC(x) != OMAGIC         \
                        && N_MAGIC(x) != NMAGIC         \