sparc32: switch to generic extables

Signed-off-by: Al Viro <[email protected]>

lib/extable.c: add missing prototypes

When building with W=1, a number of warnings are issued:

CC lib/extable.o
lib/extable.c:63:6: warning: no previous prototype for 'sort_extable' [-Wmissi

lib/extable.c: add missing prototypes

When building with W=1, a number of warnings are issued:

CC lib/extable.o
lib/extable.c:63:6: warning: no previous prototype for 'sort_extable' [-Wmissing-prototypes]
63 | void sort_extable(struct exception_table_entry *start,
| ^~~~~~~~~~~~
lib/extable.c:75:6: warning: no previous prototype for 'trim_init_extable' [-Wmissing-prototypes]
75 | void trim_init_extable(struct module *m)
| ^~~~~~~~~~~~~~~~~
lib/extable.c:115:1: warning: no previous prototype for 'search_extable' [-Wmissing-prototypes]
115 | search_extable(const struct exception_table_entry *base,
| ^~~~~~~~~~~~~~

Add the missing #include for the prototypes.

Link: http://lkml.kernel.org/r/45574.1565235784@turing-police
Signed-off-by: Valdis Kletnieks <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

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treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

Based on 1 normalized pattern(s):

this program is free software you can redistribute it and or modify
it under the terms of th

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

Based on 1 normalized pattern(s):

this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license or at
your option any later version

extracted by the scancode license scanner the SPDX license identifier

GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 3029 file(s).

Signed-off-by: Thomas Gleixner <[email protected]>
Reviewed-by: Allison Randal <[email protected]>
Cc: [email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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lib/extable.c: use bsearch() library function in search_extable()

[[email protected]: v3: fix arch specific implementations]
Link: http://lkml.kernel.org/r/[email protected]
Signed-o

lib/extable.c: use bsearch() library function in search_extable()

[[email protected]: v3: fix arch specific implementations]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Meyer <[email protected]>
Cc: Rasmus Villemoes <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

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Replace <asm/uaccess.h> with <linux/uaccess.h> globally

This was entirely automated, using the script by Al:

PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*<asm/uaccess.h>'
sed -i -e "s!$PA

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

This was entirely automated, using the script by Al:

PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*<asm/uaccess.h>'
sed -i -e "s!$PATT!#include <linux/uaccess.h>!" \
$(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h)

to do the replacement at the end of the merge window.

Requested-by: Al Viro <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

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extable: add support for relative extables to search and sort routines

This adds support to the generic search_extable() and sort_extable()
implementations for dealing with exception table entries w

extable: add support for relative extables to search and sort routines

This adds support to the generic search_extable() and sort_extable()
implementations for dealing with exception table entries whose fields
contain relative offsets rather than absolute addresses.

Acked-by: Helge Deller <[email protected]>
Acked-by: Heiko Carstens <[email protected]>
Acked-by: H. Peter Anvin <[email protected]>
Acked-by: Tony Luck <[email protected]>
Acked-by: Will Deacon <[email protected]>
Acked-by: Richard Henderson <[email protected]>
Signed-off-by: Ard Biesheuvel <[email protected]>
Signed-off-by: Catalin Marinas <[email protected]>

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module: trim exception table on init free.

It's theoretically possible that there are exception table entries
which point into the (freed) init text of modules. These could cause
future problems if

module: trim exception table on init free.

It's theoretically possible that there are exception table entries
which point into the (freed) init text of modules. These could cause
future problems if other modules get loaded into that memory and cause
an exception as we'd see the wrong fixup. The only case I know of is
kvm-intel.ko (when CONFIG_CC_OPTIMIZE_FOR_SIZE=n).

Amerigo fixed this long-standing FIXME in the x86 version, but this
patch is more general.

This implements trim_init_extable(); most archs are simple since they
use the standard lib/extable.c sort code. Alpha and IA64 use relative
addresses in their fixups, so thier trimming is a slight variation.

Sparc32 is unique; it doesn't seem to define ARCH_HAS_SORT_EXTABLE,
yet it defines its own sort_extable() which overrides the one in lib.
It doesn't sort, so we have to mark deleted entries instead of
actually trimming them.

Inspired-by: Amerigo Wang <[email protected]>
Signed-off-by: Rusty Russell <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]

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lib/extable.c: remove an expensive integer divide in search_extable()

Actual code let compiler generates idiv instruction on x86.

Using a right shift is OK here and readable as well.

Before patch

lib/extable.c: remove an expensive integer divide in search_extable()

Actual code let compiler generates idiv instruction on x86.

Using a right shift is OK here and readable as well.

Before patch
10: 57 push %edi
11: 56 push %esi
12: 89 d6 mov %edx,%esi
14: 53 push %ebx
15: 89 c3 mov %eax,%ebx
17: eb 22 jmp 3b <search_extable+0x2b>
19: 89 f0 mov %esi,%eax
1b: ba 02 00 00 00 mov $0x2,%edx
20: 29 d8 sub %ebx,%eax
22: 89 d7 mov %edx,%edi
24: c1 f8 03 sar $0x3,%eax
27: 99 cltd
28: f7 ff idiv %edi
2a: 8d 04 c3 lea (%ebx,%eax,8),%eax
2d: 39 08 cmp %ecx,(%eax)
...

After patch

00000010 <search_extable>:
10: 53 push %ebx
11: 89 c3 mov %eax,%ebx
13: eb 18 jmp 2d <search_extable+0x1d>
15: 89 d0 mov %edx,%eax
17: 29 d8 sub %ebx,%eax
19: c1 f8 04 sar $0x4,%eax
1c: 8d 04 c3 lea (%ebx,%eax,8),%eax
1f: 39 08 cmp %ecx,(%eax)
...

Signed-off-by: Eric Dumazet <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

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Remove obsolete #include <linux/config.h>

Signed-off-by: Jörn Engel <[email protected]>
Signed-off-by: Adrian Bunk <[email protected]>

[PATCH] powerpc: trivial: modify comments to refer to new location of files

This patch removes all self references and fixes references to files
in the now defunct arch/ppc64 tree. I think this acc

[PATCH] powerpc: trivial: modify comments to refer to new location of files

This patch removes all self references and fixes references to files
in the now defunct arch/ppc64 tree. I think this accomplises
everything wanted, though there might be a few references I missed.

Signed-off-by: Jon Mason <[email protected]>
Signed-off-by: Paul Mackerras <[email protected]>

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[PATCH] extable: remove needless declaration

They aren't used anywhere in that file.

Signed-off-by: Nicolas Pitre <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus To

[PATCH] extable: remove needless declaration

They aren't used anywhere in that file.

Signed-off-by: Nicolas Pitre <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

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Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in

Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

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