powerpc: Use shared font data

PowerPC has a 'btext' font used for the console which is almost identical
to the shared font_sun8x16, so use it rather than duplicating the data.

They were actually id

powerpc: Use shared font data

PowerPC has a 'btext' font used for the console which is almost identical
to the shared font_sun8x16, so use it rather than duplicating the data.

They were actually identical until about a decade ago when
commit bcfbeecea11c ("drivers: console: font_: Change a glyph from
"broken bar" to "vertical line"")

which changed the | in the shared font to be a solid
bar rather than a broken bar. That's the only difference.

This was originally spotted by the PMF source code analyser, which
noticed that sparc does the same thing with the same data, and they
also share a bunch of functions to manipulate the data. I've previously
posted a near identical patch for sparc.

Tested very lightly with a boot without FS in qemu.

Signed-off-by: "Dr. David Alan Gilbert" <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Link: https://msgid.link/[email protected]

show more ...

powerpc: Use of_property_read_bool() for boolean properties

It is preferred to use typed property access functions (i.e.
of_property_read_<type> functions) rather than low-level
of_get_property/of_f

powerpc: Use of_property_read_bool() for boolean properties

It is preferred to use typed property access functions (i.e.
of_property_read_<type> functions) rather than low-level
of_get_property/of_find_property functions for reading properties.
Convert reading boolean properties to of_property_read_bool().

Signed-off-by: Rob Herring <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Link: https://msgid.link/[email protected]

show more ...

powerpc: Fix all occurences of duplicate words

Since commit 87c78b612f4f ("powerpc: Fix all occurences of "the the"")
fixed "the the", there's now a steady stream of patches fixing other
duplicate w

powerpc: Fix all occurences of duplicate words

Since commit 87c78b612f4f ("powerpc: Fix all occurences of "the the"")
fixed "the the", there's now a steady stream of patches fixing other
duplicate words.

Just fix them all at once, to save the overhead of dealing with
individual patches for each case.

This leaves a few cases of "that that", which in some contexts is
correct.

Signed-off-by: Michael Ellerman <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

show more ...

powerpc: Add missing headers

Don't inherit headers "by chances" from asm/prom.h, asm/mpc52xx.h,
asm/pci.h etc...

Include the needed headers, and remove asm/prom.h when it was
needed exclusively for

powerpc: Add missing headers

Don't inherit headers "by chances" from asm/prom.h, asm/mpc52xx.h,
asm/pci.h etc...

Include the needed headers, and remove asm/prom.h when it was
needed exclusively for pulling necessary headers.

Signed-off-by: Christophe Leroy <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Link: https://lore.kernel.org/r/be8bdc934d152a7d8ee8d1a840d5596e2f7d85e0.1646767214.git.christophe.leroy@csgroup.eu

show more ...

powerpc: make 'boot_text_mapped' static

The sparse tool complains as follow:

arch/powerpc/kernel/btext.c:48:5: warning:
symbol 'boot_text_mapped' was not declared. Should it be static?

This symbo

powerpc: make 'boot_text_mapped' static

The sparse tool complains as follow:

arch/powerpc/kernel/btext.c:48:5: warning:
symbol 'boot_text_mapped' was not declared. Should it be static?

This symbol is not used outside of btext.c, so this commit make
it static.

Signed-off-by: Yu Kuai <[email protected]>
Signed-off-by: Christophe Leroy <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

show more ...

powerpc: remove set but not used variable 'force_printk_to_btext'

Fixes gcc '-Wunused-but-set-variable' warning:

arch/powerpc/kernel/btext.c:49:12: error: 'force_printk_to_btext'
defined but not us

powerpc: remove set but not used variable 'force_printk_to_btext'

Fixes gcc '-Wunused-but-set-variable' warning:

arch/powerpc/kernel/btext.c:49:12: error: 'force_printk_to_btext'
defined but not used.

It is never used, and so can be removed.

Signed-off-by: Yu Kuai <[email protected]>
Signed-off-by: Christophe Leroy <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

show more ...

powerpc/kernel: Add __init attribute to eligible functions

Some functions defined in `arch/powerpc/kernel` (and one in `arch/powerpc/
kexec`) are deserving of an `__init` macro attribute. These func

powerpc/kernel: Add __init attribute to eligible functions

Some functions defined in `arch/powerpc/kernel` (and one in `arch/powerpc/
kexec`) are deserving of an `__init` macro attribute. These functions are
only called by other initialization functions and therefore should inherit
the attribute.
Also, change function declarations in header files to include `__init`.

Signed-off-by: Nick Child <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

show more ...

powerpc/btext: add missing of_node_put

for_each_node_by_type performs an of_node_get on each iteration, so
a break out of the loop requires an of_node_put.

A simplified version of the semantic patc

powerpc/btext: add missing of_node_put

for_each_node_by_type performs an of_node_get on each iteration, so
a break out of the loop requires an of_node_put.

A simplified version of the semantic patch that fixes this problem is as
follows (http://coccinelle.lip6.fr):

// <smpl>
@@
local idexpression n;
expression e;
@@

for_each_node_by_type(n,...) {
...
(
of_node_put(n);
|
e = n
|
+ of_node_put(n);
? break;
)
...
}
... when != n
// </smpl>

Signed-off-by: Julia Lawall <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

show more ...

treewide: Convert macro and uses of __section(foo) to __section("foo")

Use a more generic form for __section that requires quotes to avoid
complications with clang and gcc differences.

Remove the q

treewide: Convert macro and uses of __section(foo) to __section("foo")

Use a more generic form for __section that requires quotes to avoid
complications with clang and gcc differences.

Remove the quote operator # from compiler_attributes.h __section macro.

Convert all unquoted __section(foo) uses to quoted __section("foo").
Also convert __attribute__((section("foo"))) uses to __section("foo")
even if the __attribute__ has multiple list entry forms.

Conversion done using the script at:

https://lore.kernel.org/lkml/[email protected]/2-convert_section.pl

Signed-off-by: Joe Perches <[email protected]>
Reviewed-by: Nick Desaulniers <[email protected]>
Reviewed-by: Miguel Ojeda <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

show more ...

powerpc: Tidy up a bit after removal of PowerPC 601.

The removal of the 601 left some standalone blocks from
former if/else. Drop the { } and re-indent.

Signed-off-by: Christophe Leroy <christophe.

powerpc: Tidy up a bit after removal of PowerPC 601.

The removal of the 601 left some standalone blocks from
former if/else. Drop the { } and re-indent.

Signed-off-by: Christophe Leroy <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Link: https://lore.kernel.org/r/31c4cd093963f22831bf388449056ee045533d3b.1601362098.git.christophe.leroy@csgroup.eu

show more ...

powerpc: Remove support for PowerPC 601

PowerPC 601 has been retired.

Remove all associated specific code.

CPU_FTRS_PPC601 has CPU_FTR_COHERENT_ICACHE and CPU_FTR_COMMON.

CPU_FTR_COMMON is alread

powerpc: Remove support for PowerPC 601

PowerPC 601 has been retired.

Remove all associated specific code.

CPU_FTRS_PPC601 has CPU_FTR_COHERENT_ICACHE and CPU_FTR_COMMON.

CPU_FTR_COMMON is already present via other CPU_FTRS.
None of the remaining CPU selects CPU_FTR_COHERENT_ICACHE.

So CPU_FTRS_PPC601 can be removed from the possible features,
hence can be removed completely.

Signed-off-by: Christophe Leroy <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Link: https://lore.kernel.org/r/60b725d55e21beec3335175c20b77903ff98284f.1601362098.git.christophe.leroy@csgroup.eu

show more ...

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

The replacement of <asm/pgrable.h> with <linux/pgtable.h> made the include
of the latter in the middle of asm includes. Fix this up with t

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

The replacement of <asm/pgrable.h> with <linux/pgtable.h> 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 <file> <header>" % (sys.argv[0])
sys.exit(1)

hdr_to_move="#include <linux/%s>" % 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 <linux/"):
in_hdrs = True
elif not moved and in_hdrs:
moved = True
print hdr_to_move
print line

Signed-off-by: Mike Rapoport <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Brian Cain <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Chris Zankel <[email protected]>
Cc: "David S. Miller" <[email protected]>
Cc: Geert Uytterhoeven <[email protected]>
Cc: Greentime Hu <[email protected]>
Cc: Greg Ungerer <[email protected]>
Cc: Guan Xuetao <[email protected]>
Cc: Guo Ren <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Helge Deller <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Ley Foon Tan <[email protected]>
Cc: Mark Salter <[email protected]>
Cc: Matthew Wilcox <[email protected]>
Cc: Matt Turner <[email protected]>
Cc: Max Filippov <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Michal Simek <[email protected]>
Cc: Nick Hu <[email protected]>
Cc: Paul Walmsley <[email protected]>
Cc: Richard Weinberger <[email protected]>
Cc: Rich Felker <[email protected]>
Cc: Russell King <[email protected]>
Cc: Stafford Horne <[email protected]>
Cc: Thomas Bogendoerfer <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Tony Luck <[email protected]>
Cc: Vincent Chen <[email protected]>
Cc: Vineet Gupta <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: Yoshinori Sato <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Linus Torvalds <[email protected]>

show more ...

mm: introduce include/linux/pgtable.h

The include/linux/pgtable.h is going to be the home of generic page table
manipulation functions.

Start with moving asm-generic/pgtable.h to include/linux/pgta

mm: introduce include/linux/pgtable.h

The include/linux/pgtable.h is going to be the home of generic page table
manipulation functions.

Start with moving asm-generic/pgtable.h to include/linux/pgtable.h and
make the latter include asm/pgtable.h.

Signed-off-by: Mike Rapoport <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Brian Cain <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Chris Zankel <[email protected]>
Cc: "David S. Miller" <[email protected]>
Cc: Geert Uytterhoeven <[email protected]>
Cc: Greentime Hu <[email protected]>
Cc: Greg Ungerer <[email protected]>
Cc: Guan Xuetao <[email protected]>
Cc: Guo Ren <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Helge Deller <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Ley Foon Tan <[email protected]>
Cc: Mark Salter <[email protected]>
Cc: Matthew Wilcox <[email protected]>
Cc: Matt Turner <[email protected]>
Cc: Max Filippov <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Michal Simek <[email protected]>
Cc: Nick Hu <[email protected]>
Cc: Paul Walmsley <[email protected]>
Cc: Richard Weinberger <[email protected]>
Cc: Rich Felker <[email protected]>
Cc: Russell King <[email protected]>
Cc: Stafford Horne <[email protected]>
Cc: Thomas Bogendoerfer <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Tony Luck <[email protected]>
Cc: Vincent Chen <[email protected]>
Cc: Vineet Gupta <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: Yoshinori Sato <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Linus Torvalds <[email protected]>

show more ...

powerpc: Prefer __section and __printf from compiler_attributes.h

Reported-by: Sedat Dilek <[email protected]>
Suggested-by: Josh Poimboeuf <[email protected]>
Signed-off-by: Nick Desaulniers

powerpc: Prefer __section and __printf from compiler_attributes.h

Reported-by: Sedat Dilek <[email protected]>
Suggested-by: Josh Poimboeuf <[email protected]>
Signed-off-by: Nick Desaulniers <[email protected]>
[mpe: Drop changes to a/p/boot which doesn't use linux headers]
Signed-off-by: Michael Ellerman <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

show more ...

powerpc: Rework btext_find_display to use of_stdout and device_type helpers

Remove directly accessing device_node.type pointer and use the
accessors instead. This will eventually allow removing the

powerpc: Rework btext_find_display to use of_stdout and device_type helpers

Remove directly accessing device_node.type pointer and use the
accessors instead. This will eventually allow removing the type
pointer.

In the process, the of_stdout pointer can be used instead of finding
the stdout node again.

Signed-off-by: Rob Herring <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>

show more ...

powerpc: don't use ioremap_prot() nor __ioremap() unless really needed.

In many places, ioremap_prot() and __ioremap() can be replaced with
higher level functions like ioremap(), ioremap_coherent(),

powerpc: don't use ioremap_prot() nor __ioremap() unless really needed.

In many places, ioremap_prot() and __ioremap() can be replaced with
higher level functions like ioremap(), ioremap_coherent(),
ioremap_cache(), ioremap_wc() ...

Signed-off-by: Christophe Leroy <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>

show more ...

powerpc: Make function btext_initialize static

This function can be static, make it so, this fix a warning treated as
error with W=1:

arch/powerpc/kernel/btext.c:173:5: error: no previous prototy

powerpc: Make function btext_initialize static

This function can be static, make it so, this fix a warning treated as
error with W=1:

arch/powerpc/kernel/btext.c:173:5: error: no previous prototype for ‘btext_initialize’ [-Werror=missing-prototypes]

Signed-off-by: Mathieu Malaterre <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>

show more ...

powerpc/sparse: Fix plain integer as NULL pointer warning

Trivial fix to remove the following sparse warnings:

arch/powerpc/kernel/module_32.c:112:74: warning: Using plain integer as NULL pointer

powerpc/sparse: Fix plain integer as NULL pointer warning

Trivial fix to remove the following sparse warnings:

arch/powerpc/kernel/module_32.c:112:74: warning: Using plain integer as NULL pointer
arch/powerpc/kernel/module_32.c:117:74: warning: Using plain integer as NULL pointer
drivers/macintosh/via-pmu.c:1155:28: warning: Using plain integer as NULL pointer
drivers/macintosh/via-pmu.c:1230:20: warning: Using plain integer as NULL pointer
drivers/macintosh/via-pmu.c:1385:36: warning: Using plain integer as NULL pointer
drivers/macintosh/via-pmu.c:1752:23: warning: Using plain integer as NULL pointer
drivers/macintosh/via-pmu.c:2084:19: warning: Using plain integer as NULL pointer
drivers/macintosh/via-pmu.c:2110:32: warning: Using plain integer as NULL pointer
drivers/macintosh/via-pmu.c:2167:19: warning: Using plain integer as NULL pointer
drivers/macintosh/via-pmu.c:2183:19: warning: Using plain integer as NULL pointer
drivers/macintosh/via-pmu.c:277:20: warning: Using plain integer as NULL pointer
arch/powerpc/platforms/powermac/setup.c:155:67: warning: Using plain integer as NULL pointer
arch/powerpc/platforms/powermac/setup.c:247:27: warning: Using plain integer as NULL pointer
arch/powerpc/platforms/powermac/setup.c:249:27: warning: Using plain integer as NULL pointer
arch/powerpc/platforms/powermac/setup.c:252:37: warning: Using plain integer as NULL pointer
arch/powerpc/mm/tlb_hash32.c:127:21: warning: Using plain integer as NULL pointer
arch/powerpc/mm/tlb_hash32.c:148:21: warning: Using plain integer as NULL pointer
arch/powerpc/mm/tlb_hash32.c:44:21: warning: Using plain integer as NULL pointer
arch/powerpc/mm/tlb_hash32.c:57:21: warning: Using plain integer as NULL pointer
arch/powerpc/mm/tlb_hash32.c:87:21: warning: Using plain integer as NULL pointer
arch/powerpc/kernel/btext.c:160:31: warning: Using plain integer as NULL pointer
arch/powerpc/kernel/btext.c:167:22: warning: Using plain integer as NULL pointer
arch/powerpc/kernel/btext.c:274:21: warning: Using plain integer as NULL pointer
arch/powerpc/kernel/btext.c:285:31: warning: Using plain integer as NULL pointer
arch/powerpc/include/asm/hugetlb.h:204:16: warning: Using plain integer as NULL pointer
arch/powerpc/mm/ppc_mmu_32.c:170:21: warning: Using plain integer as NULL pointer
arch/powerpc/platforms/powermac/pci.c:1227:23: warning: Using plain integer as NULL pointer
arch/powerpc/platforms/powermac/pci.c:65:24: warning: Using plain integer as NULL pointer

Also use `--fix` command line option from `script/checkpatch --strict` to
remove the following:

CHECK: Comparison to NULL could be written "!dispDeviceBase"
#72: FILE: arch/powerpc/kernel/btext.c:160:
+ if (dispDeviceBase == NULL)

CHECK: Comparison to NULL could be written "!vbase"
#80: FILE: arch/powerpc/kernel/btext.c:167:
+ if (vbase == NULL)

CHECK: Comparison to NULL could be written "!base"
#89: FILE: arch/powerpc/kernel/btext.c:274:
+ if (base == NULL)

CHECK: Comparison to NULL could be written "!dispDeviceBase"
#98: FILE: arch/powerpc/kernel/btext.c:285:
+ if (dispDeviceBase == NULL)

CHECK: Comparison to NULL could be written "strstr"
#117: FILE: arch/powerpc/kernel/module_32.c:117:
+ if (strstr(secstrings + sechdrs[i].sh_name, ".debug") != NULL)

CHECK: Comparison to NULL could be written "!Hash"
#130: FILE: arch/powerpc/mm/ppc_mmu_32.c:170:
+ if (Hash == NULL)

CHECK: Comparison to NULL could be written "Hash"
#143: FILE: arch/powerpc/mm/tlb_hash32.c:44:
+ if (Hash != NULL) {

CHECK: Comparison to NULL could be written "!Hash"
#152: FILE: arch/powerpc/mm/tlb_hash32.c:57:
+ if (Hash == NULL) {

CHECK: Comparison to NULL could be written "!Hash"
#161: FILE: arch/powerpc/mm/tlb_hash32.c:87:
+ if (Hash == NULL) {

CHECK: Comparison to NULL could be written "!Hash"
#170: FILE: arch/powerpc/mm/tlb_hash32.c:127:
+ if (Hash == NULL) {

CHECK: Comparison to NULL could be written "!Hash"
#179: FILE: arch/powerpc/mm/tlb_hash32.c:148:
+ if (Hash == NULL) {

ERROR: space required after that ';' (ctx:VxV)
#192: FILE: arch/powerpc/platforms/powermac/pci.c:65:
+ for (; node != NULL;node = node->sibling) {

CHECK: Comparison to NULL could be written "node"
#192: FILE: arch/powerpc/platforms/powermac/pci.c:65:
+ for (; node != NULL;node = node->sibling) {

CHECK: Comparison to NULL could be written "!region"
#201: FILE: arch/powerpc/platforms/powermac/pci.c:1227:
+ if (region == NULL)

CHECK: Comparison to NULL could be written "of_get_property"
#214: FILE: arch/powerpc/platforms/powermac/setup.c:155:
+ if (of_get_property(np, "cache-unified", NULL) != NULL && dc) {

CHECK: Comparison to NULL could be written "!np"
#223: FILE: arch/powerpc/platforms/powermac/setup.c:247:
+ if (np == NULL)

CHECK: Comparison to NULL could be written "np"
#226: FILE: arch/powerpc/platforms/powermac/setup.c:249:
+ if (np != NULL) {

CHECK: Comparison to NULL could be written "l2cr"
#230: FILE: arch/powerpc/platforms/powermac/setup.c:252:
+ if (l2cr != NULL) {

CHECK: Comparison to NULL could be written "via"
#243: FILE: drivers/macintosh/via-pmu.c:277:
+ if (via != NULL)

CHECK: Comparison to NULL could be written "current_req"
#252: FILE: drivers/macintosh/via-pmu.c:1155:
+ if (current_req != NULL) {

CHECK: Comparison to NULL could be written "!req"
#261: FILE: drivers/macintosh/via-pmu.c:1230:
+ if (req == NULL || pmu_state != idle

CHECK: Comparison to NULL could be written "!req"
#270: FILE: drivers/macintosh/via-pmu.c:1385:
+ if (req == NULL) {

CHECK: Comparison to NULL could be written "!pp"
#288: FILE: drivers/macintosh/via-pmu.c:2084:
+ if (pp == NULL)

CHECK: Comparison to NULL could be written "!pp"
#297: FILE: drivers/macintosh/via-pmu.c:2110:
+ if (count < 1 || pp == NULL)

CHECK: Comparison to NULL could be written "!pp"
#306: FILE: drivers/macintosh/via-pmu.c:2167:
+ if (pp == NULL)

CHECK: Comparison to NULL could be written "pp"
#315: FILE: drivers/macintosh/via-pmu.c:2183:
+ if (pp != NULL) {

Link: https://github.com/linuxppc/linux/issues/37
Signed-off-by: Mathieu Malaterre <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>

show more ...

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.

By default all files without license information are under the default
license of the kernel, which is GPL version 2.

Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.

How this work was done:

Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,

Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.

The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.

The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.

Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if <5
lines).

All documentation files were explicitly excluded.

The following heuristics were used to determine which SPDX license
identifiers to apply.

- when both scanners couldn't find any license traces, file was
considered to have no license information in it, and the top level
COPYING file license applied.

For non */uapi/* files that summary was:

SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 11139

and resulted in the first patch in this series.

If that file was a */uapi/* path one, it was "GPL-2.0 WITH
Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was:

SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 WITH Linux-syscall-note 930

and resulted in the second patch in this series.

- if a file had some form of licensing information in it, and was one
of the */uapi/* ones, it was denoted with the Linux-syscall-note if
any GPL family license was found in the file or had no licensing in
it (per prior point). Results summary:

SPDX license identifier # files
---------------------------------------------------|------
GPL-2.0 WITH Linux-syscall-note 270
GPL-2.0+ WITH Linux-syscall-note 169
((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21
((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17
LGPL-2.1+ WITH Linux-syscall-note 15
GPL-1.0+ WITH Linux-syscall-note 14
((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5
LGPL-2.0+ WITH Linux-syscall-note 4
LGPL-2.1 WITH Linux-syscall-note 3
((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3
((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1

and that resulted in the third patch in this series.

- when the two scanners agreed on the detected license(s), that became
the concluded license(s).

- when there was disagreement between the two scanners (one detected a
license but the other didn't, or they both detected different
licenses) a manual inspection of the file occurred.

- In most cases a manual inspection of the information in the file
resulted in a clear resolution of the license that should apply (and
which scanner probably needed to revisit its heuristics).

- When it was not immediately clear, the license identifier was
confirmed with lawyers working with the Linux Foundation.

- If there was any question as to the appropriate license identifier,
the file was flagged for further research and to be revisited later
in time.

In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.

Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights. The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.

Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.

In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.

Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
- a full scancode scan run, collecting the matched texts, detected
license ids and scores
- reviewing anything where there was a license detected (about 500+
files) to ensure that the applied SPDX license was correct
- reviewing anything where there was no detection but the patch license
was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
SPDX license was correct

This produced a worksheet with 20 files needing minor correction. This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.

These .csv files were then reviewed by Greg. Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected. This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.) Finally Greg ran the script using the .csv files to
generate the patches.

Reviewed-by: Kate Stewart <[email protected]>
Reviewed-by: Philippe Ombredanne <[email protected]>
Reviewed-by: Thomas Gleixner <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

show more ...

powerpc: Convert to using %pOF instead of full_name

Now that we have a custom printf format specifier, convert users of
full_name to use %pOF instead. This is preparation to remove storing
of the fu

powerpc: Convert to using %pOF instead of full_name

Now that we have a custom printf format specifier, convert users of
full_name to use %pOF instead. This is preparation to remove storing
of the full path string for each node.

Signed-off-by: Rob Herring <[email protected]>
Cc: Benjamin Herrenschmidt <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Anatolij Gustschin <[email protected]>
Cc: Scott Wood <[email protected]>
Cc: Kumar Gala <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: [email protected]
Reviewed-by: Tyrel Datwyler <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>

show more ...

powerpc/mm: Use a helper for finding pte bits mapping I/O area

Use a helper instead of open coding with constants. A later patch will
drop the WIMG bits and use PowerISA 3.0 defines.

Signed-off-by:

powerpc/mm: Use a helper for finding pte bits mapping I/O area

Use a helper instead of open coding with constants. A later patch will
drop the WIMG bits and use PowerISA 3.0 defines.

Signed-off-by: Aneesh Kumar K.V <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>

show more ...

powerpc/btext: Fix CONFIG_PPC_EARLY_DEBUG_BOOTX on ppc32

The "rmci" stuff only exists on 64-bit

Signed-off-by: Benjamin Herrenschmidt <[email protected]>

powerpc/pmac: Early debug output on screen on 64-bit macs

We have a bunch of CONFIG_PPC_EARLY_DEBUG_* options that are intended
for bringup/debug only. They hard wire a machine specific udbg backend

powerpc/pmac: Early debug output on screen on 64-bit macs

We have a bunch of CONFIG_PPC_EARLY_DEBUG_* options that are intended
for bringup/debug only. They hard wire a machine specific udbg backend
very early on (before we even probe the platform), and use whatever
tricks are available on each machine/cpu to be able to get some kind
of output out there early on.

So far, on powermac with no serial ports, we have CONFIG_PPC_EARLY_DEBUG_BOOTX
to use the low-level btext engine on the screen, but it doesn't do much, at
least on 64-bit. It only really gets enabled after the platform has been
probed and the MMU enabled.

This adds a way to enable it much earlier. From prom_init.c (while still
running with Open Firmware), we grab the screen details and set things up
using the physical address of the frame buffer.

Then btext itself uses the "rm_ci" feature of the 970 processor (Real
Mode Cache Inhibited) to access it while in real mode.

We need to do a little bit of reorg of the btext code to inline things
better, in order to limit how much we touch memory while in this mode as
the consequences might be ... interesting.

This successfully allowed me to debug problems early on with the G5
(related to gold being broken vs. ppc64 kernels).

Signed-off-by: Benjamin Herrenschmidt <[email protected]>

show more ...

powerpc: various straight conversions from module.h --> export.h

All these files were including module.h just for the basic
EXPORT_SYMBOL infrastructure. We can shift them off to the
export.h heade

powerpc: various straight conversions from module.h --> export.h

All these files were including module.h just for the basic
EXPORT_SYMBOL infrastructure. We can shift them off to the
export.h header which is a way smaller footprint and thus
realize some compile time gains.

Signed-off-by: Paul Gortmaker <[email protected]>

show more ...

Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <[email protected]>