linux-stable.git/arch/mips, branch v5.4.26

MIPS: VPE: Fix a double free and a memory leak in 'release_vpe()'

2020-03-05T15:43:45+00:00

commit bef8e2dfceed6daeb6ca3e8d33f9c9d43b926580 upstream.

Pointer on the memory allocated by 'alloc_progmem()' is stored in
'v->load_addr'. So this is this memory that should be freed by
'release_progmem()'.

'release_progmem()' is only a call to 'kfree()'.

With the current code, there is both a double free and a memory leak.
Fix it by passing the correct pointer to 'release_progmem()'.

Fixes: e01402b115ccc ("More AP / SP bits for the 34K, the Malta bits and things. Still wants")
Signed-off-by: Christophe JAILLET 
Signed-off-by: Paul Burton 
Cc: ralf@linux-mips.org
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: kernel-janitors@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman

MIPS: Loongson: Fix potential NULL dereference in loongson3_platform_init()

2020-02-24T07:36:27+00:00

[ Upstream commit 72d052e28d1d2363f9107be63ef3a3afdea6143c ]

If kzalloc fails, it should return -ENOMEM, otherwise may trigger a NULL
pointer dereference.

Fixes: 3adeb2566b9b ("MIPS: Loongson: Improve LEFI firmware interface")
Signed-off-by: Tiezhu Yang 
Signed-off-by: Paul Burton 
Cc: Ralf Baechle 
Cc: Huacai Chen 
Cc: Jiaxun Yang 
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Sasha Levin

MIPS: boot: fix typo in 'vmlinux.lzma.its' target

2020-02-11T12:35:17+00:00

commit 16202c09577f3d0c533274c0410b7de05fb0d458 upstream.

Commit 92b34a976348 ("MIPS: boot: add missing targets for vmlinux.*.its")
fixed constant rebuild of *.its files on every make invocation, but due
to typo ("lzmo") it made no sense for vmlinux.lzma.its.

Fixes: 92b34a976348 ("MIPS: boot: add missing targets for vmlinux.*.its")
Cc:  # v4.19+
Signed-off-by: Alexander Lobakin 
[paulburton@kernel.org: s/invokation/invocation/]
Signed-off-by: Paul Burton 
Cc: Ralf Baechle 
Cc: James Hogan 
Cc: Masahiro Yamada 
Cc: Rob Herring 
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman

MIPS: fix indentation of the 'RELOCS' message

2020-02-11T12:35:16+00:00

commit a53998802e178451701d59d38e36f551422977ba upstream.

quiet_cmd_relocs lacks a whitespace which results in:

  LD      vmlinux
  SORTEX  vmlinux
  SYSMAP  System.map
  RELOCS vmlinux
  Building modules, stage 2.
  MODPOST 64 modules

After this patch:

  LD      vmlinux
  SORTEX  vmlinux
  SYSMAP  System.map
  RELOCS  vmlinux
  Building modules, stage 2.
  MODPOST 64 modules

Typo is present in kernel tree since the introduction of relocatable
kernel support in commit e818fac595ab ("MIPS: Generate relocation table
when CONFIG_RELOCATABLE"), but the relocation scripts were moved to
Makefile.postlink later with commit 44079d3509ae ("MIPS: Use
Makefile.postlink to insert relocations into vmlinux").

Fixes: 44079d3509ae ("MIPS: Use Makefile.postlink to insert relocations into vmlinux")
Cc:  # v4.11+
Signed-off-by: Alexander Lobakin 
[paulburton@kernel.org: Fixup commit references in commit message.]
Signed-off-by: Paul Burton 
Cc: Ralf Baechle 
Cc: James Hogan 
Cc: Masahiro Yamada 
Cc: Rob Herring 
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman

MIPS: syscalls: fix indentation of the 'SYSNR' message

2020-02-11T12:35:16+00:00

commit 4f29ad200f7b40fbcf73cd65f95087535ba78380 upstream.

It also lacks a whitespace (copy'n'paste error?) and also messes up the
output:

  SYSHDR  arch/mips/include/generated/uapi/asm/unistd_n32.h
  SYSHDR  arch/mips/include/generated/uapi/asm/unistd_n64.h
  SYSHDR  arch/mips/include/generated/uapi/asm/unistd_o32.h
  SYSNR  arch/mips/include/generated/uapi/asm/unistd_nr_n32.h
  SYSNR  arch/mips/include/generated/uapi/asm/unistd_nr_n64.h
  SYSNR  arch/mips/include/generated/uapi/asm/unistd_nr_o32.h
  WRAP    arch/mips/include/generated/uapi/asm/bpf_perf_event.h
  WRAP    arch/mips/include/generated/uapi/asm/ipcbuf.h

After:

  SYSHDR  arch/mips/include/generated/uapi/asm/unistd_n32.h
  SYSHDR  arch/mips/include/generated/uapi/asm/unistd_n64.h
  SYSHDR  arch/mips/include/generated/uapi/asm/unistd_o32.h
  SYSNR   arch/mips/include/generated/uapi/asm/unistd_nr_n32.h
  SYSNR   arch/mips/include/generated/uapi/asm/unistd_nr_n64.h
  SYSNR   arch/mips/include/generated/uapi/asm/unistd_nr_o32.h
  WRAP    arch/mips/include/generated/uapi/asm/bpf_perf_event.h
  WRAP    arch/mips/include/generated/uapi/asm/ipcbuf.h

Present since day 0 of syscall table generation introduction for MIPS.

Fixes: 9bcbf97c6293 ("mips: add system call table generation support")
Cc:  # v5.0+
Signed-off-by: Alexander Lobakin 
Signed-off-by: Paul Burton 
Cc: Ralf Baechle 
Cc: James Hogan 
Cc: Masahiro Yamada 
Cc: Rob Herring 
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman

MIPS: Prevent link failure with kcov instrumentation

2020-01-17T18:49:05+00:00

[ Upstream commit a4a3893114a41e365274d5fab5d9ff5acc235ff0 ]

__sanitizer_cov_trace_pc() is not linked in and causing link
failure if KCOV_INSTRUMENT is enabled. Fix this by disabling
instrumentation for compressed image.

Signed-off-by: Jouni Hogander 
Signed-off-by: Paul Burton 
Cc: Lukas Bulwahn 
Cc: linux-mips@vger.kernel.org
Signed-off-by: Sasha Levin

mips: Fix gettimeofday() in the vdso library

2020-01-17T18:49:04+00:00

[ Upstream commit 7d2aa4bb90f5f6f1b8de8848c26042403f2d7bf9 ]

The libc provides a discovery mechanism for vDSO library and its
symbols. When a symbol is not exposed by the vDSOs the libc falls back
on the system calls.

With the introduction of the unified vDSO library on mips this behavior
is not honored anymore by the kernel in the case of gettimeofday().

The issue has been noticed and reported due to a dhclient failure on the
CI20 board:

root@letux:~# dhclient
../../../../lib/isc/unix/time.c:200: Operation not permitted
root@letux:~#

Restore the original behavior fixing gettimeofday() in the vDSO library.

Reported-by: H. Nikolaus Schaller 
Tested-by: H. Nikolaus Schaller  # CI20 with JZ4780
Signed-off-by: Vincenzo Frascino 
Signed-off-by: Paul Burton 
Cc: mips-creator-ci20-dev@googlegroups.com
Cc: letux-kernel@openphoenux.org
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Sasha Levin

mips: cacheinfo: report shared CPU map

2020-01-17T18:49:04+00:00

[ Upstream commit 3b1313eb32c499d46dc4c3e896d19d9564c879c4 ]

Report L1 caches as shared per core; L2 - per cluster.

This fixes "perf" that went crazy if shared_cpu_map attribute not
reported on sysfs, in form of

/sys/devices/system/cpu/cpu*/cache/index*/shared_cpu_list
/sys/devices/system/cpu/cpu*/cache/index*/shared_cpu_map

Signed-off-by: Vladimir Kondratiev 
Signed-off-by: Paul Burton 
Cc: Ralf Baechle 
Cc: James Hogan 
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Sasha Levin

MIPS: SGI-IP27: Fix crash, when CPUs are disabled via nr_cpus parameter

2020-01-17T18:48:55+00:00

commit e3d765a941f6130fd94e47b2064cfee71f4cbadd upstream.

If number of CPUs are limited by the kernel commandline parameter nr_cpus
assignment of interrupts accourding to numa rules might not be possibe.
As a fallback use one of the online CPUs as interrupt destination.

Fixes: 69a07a41d908 ("MIPS: SGI-IP27: rework HUB interrupts")
Signed-off-by: Thomas Bogendoerfer 
Signed-off-by: Paul Burton 
Cc: Ralf Baechle 
Cc: James Hogan 
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman

MIPS: PCI: remember nasid changed by set interrupt affinity

2020-01-17T18:48:54+00:00

commit 37640adbefd66491cb8083a438f7bf366ac09bc7 upstream.

When changing interrupt affinity remember the possible changed nasid,
otherwise an interrupt deactivate/activate sequence will incorrectly
setup interrupt.

Fixes: e6308b6d35ea ("MIPS: SGI-IP27: abstract chipset irq from bridge")
Signed-off-by: Thomas Bogendoerfer 
Signed-off-by: Paul Burton 
Cc: Ralf Baechle 
Cc: James Hogan 
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman