linux.git/arch/mips/boot/compressed, branch v6.8 Linux kernel source tree Merge tag 'mips_6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux 2024-01-17T19:20:50+00:00 Linus Torvalds torvalds@linux-foundation.org 2024-01-17T19:20:50+00:00 096f286ee3fadf3f6777dedba35fa66654ec9f34 Pull MIPS updates from Thomas Bogendoerfer: "Just cleanups and fixes" * tag 'mips_6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: MIPS: Alchemy: Fix an out-of-bound access in db1550_dev_setup() MIPS: Alchemy: Fix an out-of-bound access in db1200_dev_setup() MIPS: Fix typos MIPS: Remove unused shadow GPR support from vector irq setup MIPS: Allow vectored interrupt handler to reside everywhere for 64bit mips: Set dump-stack arch description mips: mm: add slab availability checking in ioremap_prot mips: Optimize max_mapnr init procedure mips: Fix max_mapnr being uninitialized on early stages mips: Fix incorrect max_low_pfn adjustment mips: dmi: Fix early remap on MIPS32 MIPS: compressed: Use correct instruction for 64 bit code MIPS: SGI-IP27: hubio: fix nasid kernel-doc warning MAINTAINERS: Add myself as maintainer of the Ralink architecture 
Pull MIPS updates from Thomas Bogendoerfer:
 "Just cleanups and fixes"

* tag 'mips_6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
  MIPS: Alchemy: Fix an out-of-bound access in db1550_dev_setup()
  MIPS: Alchemy: Fix an out-of-bound access in db1200_dev_setup()
  MIPS: Fix typos
  MIPS: Remove unused shadow GPR support from vector irq setup
  MIPS: Allow vectored interrupt handler to reside everywhere for 64bit
  mips: Set dump-stack arch description
  mips: mm: add slab availability checking in ioremap_prot
  mips: Optimize max_mapnr init procedure
  mips: Fix max_mapnr being uninitialized on early stages
  mips: Fix incorrect max_low_pfn adjustment
  mips: dmi: Fix early remap on MIPS32
  MIPS: compressed: Use correct instruction for 64 bit code
  MIPS: SGI-IP27: hubio: fix nasid kernel-doc warning
  MAINTAINERS: Add myself as maintainer of the Ralink architecture
MIPS: Fix typos 2024-01-08T09:39:12+00:00 Bjorn Helgaas bhelgaas@google.com 2024-01-03T23:16:03+00:00 2f9060b1db4aa2c21c248e34476d8936a2b69cf6 Fix typos, most reported by "codespell arch/mips". Only touches comments, no code changes. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: linux-mips@vger.kernel.org Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> 
Fix typos, most reported by "codespell arch/mips".  Only touches comments,
no code changes.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: linux-mips@vger.kernel.org
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
MIPS: compressed: Use correct instruction for 64 bit code 2023-12-21T14:30:03+00:00 Gregory CLEMENT gregory.clement@bootlin.com 2023-12-12T16:34:33+00:00 f99c37d562250cbceed262723f91944c981eeb7b The code clearing BSS already use macro or use correct instruction depending if the CPU is 32 bits or 64 bits. However, a few instructions remained 32 bits only. By using the accurate MACRO, it is now possible to deal with memory address beyond 32 bits. As a side effect, when using 64bits processor, it also divides the loop number needed to clear the BSS by 2. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> 
The code clearing BSS already use macro or use correct instruction
depending if the CPU is 32 bits or 64 bits. However, a few
instructions remained 32 bits only.

By using the accurate MACRO, it is now possible to deal with memory
address beyond 32 bits. As a side effect, when using 64bits processor,
it also divides the loop number needed to clear the BSS by 2.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
mips: decompress: fix add missing prototypes 2023-12-11T01:21:38+00:00 Arnd Bergmann arnd@arndb.de 2023-12-04T11:56:51+00:00 1b5e6f4ec0870cc11250f627d26ad939d22cc2f6 Patch series "mips: address -Wmissing-prototypes warnings". Address the -Wmissing-prototypes warnings that showed up in mips as the last major architecture after my patch to enable the option everywhere. This patch (of 20): The mips decompressor has some string functions defined locally that are not declared in the right place: arch/mips/boot/compressed/dbg.c:12:13: error: no previous prototype for 'putc' [-Werror=missing-prototypes] arch/mips/boot/compressed/dbg.c:16:6: error: no previous prototype for 'puts' [-Werror=missing-prototypes] arch/mips/boot/compressed/dbg.c:26:6: error: no previous prototype for 'puthex' [-Werror=missing-prototypes] arch/mips/boot/compressed/string.c:11:7: error: no previous prototype for 'memcpy' [-Werror=missing-prototypes] arch/mips/boot/compressed/string.c:22:7: error: no previous prototype for 'memset' [-Werror=missing-prototypes] arch/mips/boot/compressed/string.c:32:15: error: no previous prototype for 'memmove' [-Werror=missing-prototypes] arch/mips/boot/compressed/decompress.c:43:6: error: no previous prototype for 'error' [-Werror=missing-prototypes] arch/mips/boot/compressed/decompress.c:91:6: error: no previous prototype for 'decompress_kernel' [-Werror=missing-prototypes] Include the string.h header where needed and add a decompress.h header to have shared prototypes for the rest. Link: https://lkml.kernel.org/r/20231204115710.2247097-1-arnd@kernel.org Link: https://lkml.kernel.org/r/20231204115710.2247097-2-arnd@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Stephen Rothwell <sfr@rothwell.id.au> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> 
Patch series "mips: address -Wmissing-prototypes warnings".

Address the -Wmissing-prototypes warnings that showed up in mips as the
last major architecture after my patch to enable the option everywhere.


This patch (of 20):

The mips decompressor has some string functions defined locally that are
not declared in the right place:

arch/mips/boot/compressed/dbg.c:12:13: error: no previous prototype for 'putc' [-Werror=missing-prototypes]
arch/mips/boot/compressed/dbg.c:16:6: error: no previous prototype for 'puts' [-Werror=missing-prototypes]
arch/mips/boot/compressed/dbg.c:26:6: error: no previous prototype for 'puthex' [-Werror=missing-prototypes]
arch/mips/boot/compressed/string.c:11:7: error: no previous prototype for 'memcpy' [-Werror=missing-prototypes]
arch/mips/boot/compressed/string.c:22:7: error: no previous prototype for 'memset' [-Werror=missing-prototypes]
arch/mips/boot/compressed/string.c:32:15: error: no previous prototype for 'memmove' [-Werror=missing-prototypes]
arch/mips/boot/compressed/decompress.c:43:6: error: no previous prototype for 'error' [-Werror=missing-prototypes]
arch/mips/boot/compressed/decompress.c:91:6: error: no previous prototype for 'decompress_kernel' [-Werror=missing-prototypes]

Include the string.h header where needed and add a decompress.h header to
have shared prototypes for the rest.

Link: https://lkml.kernel.org/r/20231204115710.2247097-1-arnd@kernel.org
Link: https://lkml.kernel.org/r/20231204115710.2247097-2-arnd@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Stephen Rothwell <sfr@rothwell.id.au>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
MIPS: AR7: remove platform 2023-10-19T08:39:46+00:00 Wolfram Sang wsa+renesas@sang-engineering.com 2023-09-22T06:15:27+00:00 4b7d3ab445653336db9854eedad812607760c015 After a discussion about removing VLYNQ support from the Kernel, it was concluded that its only user, the AR7 platform can go [1]. Even OpenWRT has removed support because these devices are "stuck with 3.18" [2]. [1] https://lore.kernel.org/r/3395161f-2543-46f0-83d9-b918800305e1@gmail.com [2] https://openwrt.org/docs/techref/targets/ar7 Suggested-by: Jonas Gorski <jonas.gorski@gmail.com> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> 
After a discussion about removing VLYNQ support from the Kernel, it was
concluded that its only user, the AR7 platform can go [1]. Even OpenWRT
has removed support because these devices are "stuck with 3.18" [2].

[1] https://lore.kernel.org/r/3395161f-2543-46f0-83d9-b918800305e1@gmail.com
[2] https://openwrt.org/docs/techref/targets/ar7

Suggested-by: Jonas Gorski <jonas.gorski@gmail.com>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
mips: boot/compressed: use __NO_FORTIFY 2022-11-11T14:43:26+00:00 John Thomson git@johnthomson.fastmail.com.au 2022-10-31T17:07:49+00:00 62776e4378ae9086115ffd6f8bd9b9c0fe6e6809 In the mips CONFIG_SYS_SUPPORTS_ZBOOT kernel, fix the compile error when using CONFIG_FORTIFY_SOURCE=y LD vmlinuz mipsel-openwrt-linux-musl-ld: arch/mips/boot/compressed/decompress.o: in function `decompress_kernel': ./include/linux/decompress/mm.h:(.text.decompress_kernel+0x177c): undefined reference to `warn_slowpath_fmt' kernel test robot helped identify this as related to fortify. The error appeared with commit 54d9469bc515 ("fortify: Add run-time WARN for cross-field memcpy()") Link: https://lore.kernel.org/r/202209161144.x9xSqNQZ-lkp@intel.com/ Resolve this in the same style as commit cfecea6ead5f ("lib/string: Move helper functions out of string.c") Reported-by: kernel test robot <lkp@intel.com> Fixes: 54d9469bc515 ("fortify: Add run-time WARN for cross-field memcpy()") Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: John Thomson <git@johnthomson.fastmail.com.au> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> 
In the mips CONFIG_SYS_SUPPORTS_ZBOOT kernel, fix the compile error
when using CONFIG_FORTIFY_SOURCE=y

LD      vmlinuz
mipsel-openwrt-linux-musl-ld: arch/mips/boot/compressed/decompress.o: in
function `decompress_kernel':
./include/linux/decompress/mm.h:(.text.decompress_kernel+0x177c):
undefined reference to `warn_slowpath_fmt'

kernel test robot helped identify this as related to fortify. The error
appeared with commit 54d9469bc515 ("fortify: Add run-time WARN for
cross-field memcpy()")
Link: https://lore.kernel.org/r/202209161144.x9xSqNQZ-lkp@intel.com/

Resolve this in the same style as commit cfecea6ead5f ("lib/string:
Move helper functions out of string.c")

Reported-by: kernel test robot <lkp@intel.com>
Fixes: 54d9469bc515 ("fortify: Add run-time WARN for cross-field memcpy()")
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: John Thomson <git@johnthomson.fastmail.com.au>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
MIPS: boot/compressed: Use array reference for image bounds 2022-03-14T14:02:26+00:00 Kees Cook keescook@chromium.org 2022-03-09T18:50:32+00:00 4d409ca3e5107a1b300d0f36550d61c5da4fd8a7 As done with other image addresses in other architectures, use an explicit flexible array instead of "address of char", which can trip bounds checking done by the compiler. Found when building with -Warray-bounds: In file included from ./include/linux/byteorder/little_endian.h:5, from ./arch/mips/include/uapi/asm/byteorder.h:15, from ./arch/mips/include/asm/bitops.h:21, from ./include/linux/bitops.h:33, from ./include/linux/kernel.h:22, from arch/mips/boot/compressed/decompress.c:13: arch/mips/boot/compressed/decompress.c: In function 'decompress_kernel': ./include/asm-generic/unaligned.h:14:8: warning: array subscript -1 is outside array bounds of 'unsigned char[1]' [-Warray-bounds] 14 | __pptr->x; \ | ~~~~~~^~~ ./include/uapi/linux/byteorder/little_endian.h:35:51: note: in definition of macro '__le32_to_cpu' 35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) | ^ ./include/asm-generic/unaligned.h:32:21: note: in expansion of macro '__get_unaligned_t' 32 | return le32_to_cpu(__get_unaligned_t(__le32, p)); | ^~~~~~~~~~~~~~~~~ arch/mips/boot/compressed/decompress.c:29:37: note: while referencing '__image_end' 29 | extern unsigned char __image_begin, __image_end; | ^~~~~~~~~~~ Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: linux-mips@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> 
As done with other image addresses in other architectures, use an
explicit flexible array instead of "address of char", which can trip
bounds checking done by the compiler. Found when building with
-Warray-bounds:

In file included from ./include/linux/byteorder/little_endian.h:5,
                 from ./arch/mips/include/uapi/asm/byteorder.h:15,
                 from ./arch/mips/include/asm/bitops.h:21,
                 from ./include/linux/bitops.h:33,
                 from ./include/linux/kernel.h:22,
                 from arch/mips/boot/compressed/decompress.c:13:
arch/mips/boot/compressed/decompress.c: In function 'decompress_kernel':
./include/asm-generic/unaligned.h:14:8: warning: array subscript -1 is outside array bounds of 'unsigned char[1]' [-Warray-bounds]
   14 |  __pptr->x;        \
      |  ~~~~~~^~~
./include/uapi/linux/byteorder/little_endian.h:35:51: note: in definition of macro '__le32_to_cpu'
   35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
      |                                                   ^
./include/asm-generic/unaligned.h:32:21: note: in expansion of macro '__get_unaligned_t'
   32 |  return le32_to_cpu(__get_unaligned_t(__le32, p));
      |                     ^~~~~~~~~~~~~~~~~
arch/mips/boot/compressed/decompress.c:29:37: note: while referencing '__image_end'
   29 | extern unsigned char __image_begin, __image_end;
      |                                     ^~~~~~~~~~~

Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: linux-mips@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
mips: Enable KCSAN 2022-02-22T08:45:05+00:00 Nemanja Rakovic nemanja.rakovic@syrmia.com 2022-02-21T12:12:25+00:00 d1ca45f93c3f95d1590d60b012cf8fcf6db633ee Replaces KASAN_SANITIZE with KCSAN_SANITIZE in boot/compressed/Makefile. Fixes: e0a8b93efa23 mips: Enable KCSAN Signed-off-by: Nemanja Rakovic <nemanja.rakovic@syrmia.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> 
Replaces KASAN_SANITIZE with KCSAN_SANITIZE in
boot/compressed/Makefile.

Fixes: e0a8b93efa23 mips: Enable KCSAN
Signed-off-by: Nemanja Rakovic <nemanja.rakovic@syrmia.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
mips: Enable KCSAN 2022-02-07T17:31:57+00:00 Nemanja Rakovic nemanja.rakovic@syrmia.com 2022-01-31T10:17:09+00:00 e0a8b93efa2382d370be44bf289157de7e5dacb4 This patch enables KCSAN for the 64-bit version. Updated rules for the incompatible compilation units (vdso, boot/compressed). Signed-off-by: Nemanja Rakovic <nemanja.rakovic@syrmia.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> 
This patch enables KCSAN for the 64-bit version. Updated rules
for the incompatible compilation units (vdso, boot/compressed).

Signed-off-by: Nemanja Rakovic <nemanja.rakovic@syrmia.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Merge tag 'kbuild-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild 2022-01-19T09:15:19+00:00 Linus Torvalds torvalds@linux-foundation.org 2022-01-19T09:15:19+00:00 fd6f57bfda7c36f2d465cee39d5d8c623db5d7aa Pull Kbuild updates from Masahiro Yamada: - Add new kconfig target 'make mod2noconfig', which will be useful to speed up the build and test iteration. - Raise the minimum supported version of LLVM to 11.0.0 - Refactor certs/Makefile - Change the format of include/config/auto.conf to stop double-quoting string type CONFIG options. - Fix ARCH=sh builds in dash - Separate compression macros for general purposes (cmd_bzip2 etc.) and the ones for decompressors (cmd_bzip2_with_size etc.) - Misc Makefile cleanups * tag 'kbuild-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (34 commits) kbuild: add cmd_file_size arch: decompressor: remove useless vmlinux.bin.all-y kbuild: rename cmd_{bzip2,lzma,lzo,lz4,xzkern,zstd22} kbuild: drop $(size_append) from cmd_zstd sh: rename suffix-y to suffix_y doc: kbuild: fix default in `imply` table microblaze: use built-in function to get CPU_{MAJOR,MINOR,REV} certs: move scripts/extract-cert to certs/ kbuild: do not quote string values in include/config/auto.conf kbuild: do not include include/config/auto.conf from shell scripts certs: simplify $(srctree)/ handling and remove config_filename macro kbuild: stop using config_filename in scripts/Makefile.modsign certs: remove misleading comments about GCC PR certs: refactor file cleaning certs: remove unneeded -I$(srctree) option for system_certificates.o certs: unify duplicated cmd_extract_certs and improve the log certs: use $< and $@ to simplify the key generation rule kbuild: remove headers_check stub kbuild: move headers_check.pl to usr/include/ certs: use if_changed to re-generate the key when the key type is changed ... 
Pull Kbuild updates from Masahiro Yamada:

 - Add new kconfig target 'make mod2noconfig', which will be useful to
   speed up the build and test iteration.

 - Raise the minimum supported version of LLVM to 11.0.0

 - Refactor certs/Makefile

 - Change the format of include/config/auto.conf to stop double-quoting
   string type CONFIG options.

 - Fix ARCH=sh builds in dash

 - Separate compression macros for general purposes (cmd_bzip2 etc.) and
   the ones for decompressors (cmd_bzip2_with_size etc.)

 - Misc Makefile cleanups

* tag 'kbuild-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (34 commits)
  kbuild: add cmd_file_size
  arch: decompressor: remove useless vmlinux.bin.all-y
  kbuild: rename cmd_{bzip2,lzma,lzo,lz4,xzkern,zstd22}
  kbuild: drop $(size_append) from cmd_zstd
  sh: rename suffix-y to suffix_y
  doc: kbuild: fix default in `imply` table
  microblaze: use built-in function to get CPU_{MAJOR,MINOR,REV}
  certs: move scripts/extract-cert to certs/
  kbuild: do not quote string values in include/config/auto.conf
  kbuild: do not include include/config/auto.conf from shell scripts
  certs: simplify $(srctree)/ handling and remove config_filename macro
  kbuild: stop using config_filename in scripts/Makefile.modsign
  certs: remove misleading comments about GCC PR
  certs: refactor file cleaning
  certs: remove unneeded -I$(srctree) option for system_certificates.o
  certs: unify duplicated cmd_extract_certs and improve the log
  certs: use $< and $@ to simplify the key generation rule
  kbuild: remove headers_check stub
  kbuild: move headers_check.pl to usr/include/
  certs: use if_changed to re-generate the key when the key type is changed
  ...