linux.git/arch/sparc/lib, branch v5.12

sparc32: switch copy_user.S away from range exception table entries

2021-01-04T01:05:17+00:00

Those were the last range exception table entries, which will allow
to get rid of a lot of weirdness.  Emits the same code into .text.

Signed-off-by: Al Viro

sparc32: get rid of range exception table entries in checksum_32.S

2021-01-04T01:05:16+00:00

trivial - we don't even look at instruction offsets in the handler

Signed-off-by: Al Viro

sparc32: switch __bzero() away from range exception table entries

2021-01-04T01:05:15+00:00

Signed-off-by: Al Viro

sparc32: kill lookup_fault()

2021-01-04T01:05:14+00:00

No callers left.  As the result we can kill
	* lookup_fault() itself
	* the kludge in do_sparc_fault() for passing the
arguments for eventual lookup_fault() into exception handler and
labels used by it
	* the last of magical exception table entries (in __clear_user())

Signed-off-by: Al Viro

sparc32: don't bother with lookup_fault() in __bzero()

2021-01-04T01:05:13+00:00

Signed-off-by: Al Viro

[regression fix] really dumb fuckup in sparc64 __csum_partial_copy() changes

2020-12-08T21:37:47+00:00

~0U is -1, not 1

Reported-by: Anatoly Pugachev 
Tested-by: Anatoly Pugachev 
Fixes: fdf8bee96f9a "sparc64: propagate the calling convention changes down to __csum_partial_copy_...()"
X-brown-paperbag: yes
Signed-off-by: Al Viro

sparc64: propagate the calling convention changes down to __csum_partial_copy_...()

2020-08-20T19:45:21+00:00

... and rename them into csum_and_copy_...() - the wrappers become pointless.
[braino fixed]

Signed-off-by: Al Viro

sparc32: propagate the calling conventions change down to __csum_partial_copy_sparc_generic()

2020-08-20T19:45:19+00:00

... and get rid of zeroing the target, etc. on fault.
All exception handlers merge into one; moreover, since we are not
calling lookup_fault() anymore, we don't need the magic with passing
arguments for it from the page fault handler.

Signed-off-by: Al Viro

csum_partial_copy_nocheck(): drop the last argument

2020-08-20T19:45:14+00:00

It's always 0.  Note that we theoretically could use ~0U as well -
result will be the same modulo 0xffff, _if_ the damn thing did the
right thing for any value of initial sum; later we'll make use of
that when convenient.

However, unlike csum_and_copy_..._user(), there are instances that
did not work for arbitrary initial sums; c6x is one such.

Signed-off-by: Al Viro

mm: reorder includes after introduction of linux/pgtable.h

2020-06-09T16:39:13+00:00

The replacement of  with  made the include
of the latter in the middle of asm includes.  Fix this up with the aid of
the below script and manual adjustments here and there.

	import sys
	import re

	if len(sys.argv) is not 3:
	    print "USAGE: %s  " % (sys.argv[0])
	    sys.exit(1)

	hdr_to_move="#include " % sys.argv[2]
	moved = False
	in_hdrs = False

	with open(sys.argv[1], "r") as f:
	    lines = f.readlines()
	    for _line in lines:
		line = _line.rstrip('
')
		if line == hdr_to_move:
		    continue
		if line.startswith("#include 
Signed-off-by: Andrew Morton 
Cc: Arnd Bergmann 
Cc: Borislav Petkov 
Cc: Brian Cain 
Cc: Catalin Marinas 
Cc: Chris Zankel 
Cc: "David S. Miller" 
Cc: Geert Uytterhoeven 
Cc: Greentime Hu 
Cc: Greg Ungerer 
Cc: Guan Xuetao 
Cc: Guo Ren 
Cc: Heiko Carstens 
Cc: Helge Deller 
Cc: Ingo Molnar 
Cc: Ley Foon Tan 
Cc: Mark Salter 
Cc: Matthew Wilcox 
Cc: Matt Turner 
Cc: Max Filippov 
Cc: Michael Ellerman 
Cc: Michal Simek 
Cc: Nick Hu 
Cc: Paul Walmsley 
Cc: Richard Weinberger 
Cc: Rich Felker 
Cc: Russell King 
Cc: Stafford Horne 
Cc: Thomas Bogendoerfer 
Cc: Thomas Gleixner 
Cc: Tony Luck 
Cc: Vincent Chen 
Cc: Vineet Gupta 
Cc: Will Deacon 
Cc: Yoshinori Sato 
Link: http://lkml.kernel.org/r/20200514170327.31389-4-rppt@kernel.org
Signed-off-by: Linus Torvalds