Hi, Jiaxun
On 04/20/2021 09:11 AM, Jiaxun Yang wrote:
在 2021/4/19 18:56, Youling Tang 写道:
From: Huacai Chen
kexec-tools use mem=X@Y to pass usable memories to crash kernel, but in
commit a94e4f24ec836c8984f83959 ("MIPS: init: Drop boot_mem_map") all
BIOS passed memories are
Hi, Jiaxun
On 04/20/2021 09:05 AM, Jiaxun Yang wrote:
在 2021/4/19 18:50, Youling Tang 写道:
This problem may only occur on NUMA platforms. When machine start
with the
"mem=" parameter on Loongson64, it cannot boot. When parsing the "mem="
parameter, first remove all RAM,
ash kernel, because a
crash kernel should be able to see all old memories, even though it is
not supposed to use them.
Fixes: a94e4f24ec836c8984f83959 ("MIPS: init: Drop boot_mem_map")
Signed-off-by: Huacai Chen
Signed-off-by: Youling Tang
---
arch/mips/kernel/setup.c | 2 ++
1 file changed, 2
add it to the corresponding node through
memblock_add_node().
Signed-off-by: Jinyang He
Signed-off-by: Youling Tang
---
arch/mips/kernel/setup.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 279be01..b86e241 100644
--- a/
ystem call related to
kdump is made. This arch_kexec_unprotect_crashkres() will undo the
protection of the reserved memory.
Signed-off-by: Youling Tang
---
arch/mips/kernel/machine_kexec.c | 40
1 file changed, 40 insertions(+)
diff --git a/arch/m
/set_memory.h).
Signed-off-by: Youling Tang
---
arch/mips/Kconfig | 1 +
arch/mips/include/asm/set_memory.h | 19 +
arch/mips/mm/Makefile | 1 +
arch/mips/mm/pageattr.c| 157 +
4 files changed, 178 insertions
Add definitions for the bit masks/shifts/sizes, and implement
MAX_SWAPFILES_CHECK() such that we fail to build if we are
unable to properly encode the swp type field.
Signed-off-by: Youling Tang
---
arch/mips/include/asm/pgtable-32.h | 32
arch/mips/include/asm
he second MB, the second 64K, KEXEC data
Cc: Eric Biederman
Tested-by: Jinyang He
Signed-off-by: Huacai Chen
Signed-off-by: Jinyang He
Signed-off-by: Youling Tang
---
v3 -> v4:
- Use the macro kexec_smp_wait_final and move the platform-specific code
into the kernel-entry-init.h file. Th
Hi, Dan
On 02/09/2021 03:02 AM, Dan Carpenter wrote:
On Mon, Feb 08, 2021 at 04:06:18PM +0100, Sascha Hauer wrote:
Hi Dan,
On Mon, Feb 08, 2021 at 04:45:17PM +0300, Dan Carpenter wrote:
On Sun, Feb 07, 2021 at 05:23:28PM +0800, Youling Tang wrote:
Fix the below ignoring return value
~
drivers/staging/ralink-gdma/ralink-gdma.c:836:2: warning: ignoring return value
of function declared with 'warn_unused_result' attribute [-Wunused-result]
device_reset(&pdev->dev);
^~~~ ~~
Signed-off-by: Youling Tang
---
drivers/staging/mt7621-dma/
Replace kmap_atomic_pfn() with kmap_local_pfn() which is preemptible and
can take page faults.
Remove the indirection of the dump page and the related cruft which is not
longer required.
Remove unused or redundant header files.
Reported-by: kernel test robot
Signed-off-by: Youling Tang
Replace kmap_atomic_pfn() with kmap_local_pfn() which is preemptible and
can take page faults.
Remove the indirection of the dump page and the related cruft which is not
longer required.
Remove unused or redundant header files.
Signed-off-by: Youling Tang
---
arch/mips/kernel/crash_dump.c
'pci_set_dma_mask()' + 'pci_set_consistent_dma_mask()' can be replaced by
an equivalent 'dma_set_mask_and_coherent()' which is much less verbose.
Reported-by: kernel test robot
Signed-off-by: Youling Tang
---
v3: Fix build errors of incompatible pointer types.
'pci_set_dma_mask()' + 'pci_set_consistent_dma_mask()' can be replaced by
an equivalent 'dma_set_mask_and_coherent()' which is much less verbose.
Signed-off-by: Youling Tang
---
drivers/i2c/busses/i2c-ismt.c | 8 ++--
1 file changed, 2 insertions(+), 6 deletion
Hi, Wolfram
On 12/03/2020 12:01 AM, Wolfram Sang wrote:
On Tue, Nov 24, 2020 at 09:08:35PM +0800, Youling Tang wrote:
'pci_set_dma_mask()' + 'pci_set_consistent_dma_mask()' can be replaced by
an equivalent 'dma_set_mask_and_coherent()' which is much less verbose
Use the common STABS_DEBUG and DWARF_DEBUG and ELF_DETAILS macro rule for
the linker script in an effort.
Signed-off-by: Youling Tang
---
arch/powerpc/kernel/vdso32/vdso32.lds.S | 42 -
arch/powerpc/kernel/vdso64/vdso64.lds.S | 42
Hi,
On 11/26/2020 10:22 PM, Rafael J. Wysocki wrote:
On Thu, Nov 26, 2020 at 2:26 AM Youling Tang wrote:
kfree() has been called inside put_device so anther kfree would cause a
use-after-free bug.
Signed-off-by: Youling Tang
---
drivers/acpi/acpi_ipmi.c | 1 -
1 file changed, 1 deletion
Add the missing munmap(addr_ro, PAGE_SIZE) before return.
Signed-off-by: Youling Tang
---
tools/testing/selftests/ptrace/peeksiginfo.c | 12 +++-
1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/tools/testing/selftests/ptrace/peeksiginfo.c
b/tools/testing/selftests/ptrace
The patch removes code duplication between arch_ptrace and
compat_arch_ptrace, in large part by having the former call
into the later for all requests that don't need any special
"compat" treatment.
Signed-off-by: Youling Tang
---
arch/sparc/kernel/p
This removes duplicated code by calling the generic ptrace_request
function for the things they already handle.
Signed-off-by: Youling Tang
---
arch/alpha/kernel/ptrace.c | 6 --
1 file changed, 6 deletions(-)
diff --git a/arch/alpha/kernel/ptrace.c b/arch/alpha/kernel/ptrace.c
index
kfree() has been called inside put_device so anther kfree would cause a
use-after-free bug.
Signed-off-by: Youling Tang
---
drivers/acpi/acpi_ipmi.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/acpi/acpi_ipmi.c b/drivers/acpi/acpi_ipmi.c
index 9d6c0fc..18edf8b 100644
--- a/drivers
Hi，
On 11/25/2020 11:53 PM, Rafael J. Wysocki wrote:
On Tue, Nov 24, 2020 at 1:51 PM Youling Tang wrote:
kfree() has been called inside put_device so anther kfree would cause a
use-after-free bug.
Signed-off-by: Youling Tang
---
drivers/acpi/acpi_ipmi.c | 2 --
1 file changed, 2
'pci_set_dma_mask()' + 'pci_set_consistent_dma_mask()' can be replaced by
an equivalent 'dma_set_mask_and_coherent()' which is much less verbose.
Signed-off-by: Youling Tang
---
drivers/i2c/busses/i2c-ismt.c | 8 ++--
1 file changed, 2 insertions(+), 6 deletion
kfree() has been called inside put_device so anther kfree would cause a
use-after-free bug.
Signed-off-by: Youling Tang
---
drivers/acpi/acpi_ipmi.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/acpi/acpi_ipmi.c b/drivers/acpi/acpi_ipmi.c
index 9d6c0fc..72902b6 100644
--- a
Hi, Michal
On 11/20/2020 09:31 PM, Michal Simek wrote:
Hi,
On 19. 11. 20 2:40, Youling Tang wrote:
Use the common INIT_DATA_SECTION rule for the linker script in an effort
to regularize the linker script.
Signed-off-by: Youling Tang
---
arch/microblaze/kernel/vmlinux.lds.S | 24
Commit c604abc3f6e3 ("vmlinux.lds.h: Split ELF_DETAILS from STABS_DEBUG")
after should add a missing ELF_DETAILS, at the same time, the .comment
section has been included in the ELF_DETAILS.
Signed-off-by: Youling Tang
---
arch/m68k/kernel/vmlinux-nommu.lds | 2 +-
arch/m68k/kern
Commit eaf937075c9a ("vmlinux.lds.h: Move NOTES into RO_DATA") after
should remove redundant NOTES.
Signed-off-by: Youling Tang
---
arch/m68k/kernel/vmlinux-nommu.lds | 1 -
arch/m68k/kernel/vmlinux-std.lds | 1 -
arch/m68k/kernel/vmlinux-sun3.lds | 1 -
3 files changed, 3 deletion
Use the common DISCARDS rule for the linker script in an effort to
regularize the linker script.
Signed-off-by: Youling Tang
---
arch/c6x/kernel/vmlinux.lds.S | 8 ++--
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/arch/c6x/kernel/vmlinux.lds.S b/arch/c6x/kernel
Hi, Ard
On 11/19/2020 03:18 PM, Ard Biesheuvel wrote:
On Thu, 19 Nov 2020 at 02:45, Youling Tang wrote:
We currently try to emit *.init.rodata.* twice, once in INIT_DATA, and once
in the line immediately following it. As the two section definitions are
identical, the latter is redundant and
We currently try to emit *.init.rodata.* twice, once in INIT_DATA, and once
in the line immediately following it. As the two section definitions are
identical, the latter is redundant and can be dropped.
This patch drops the redundant *.init.rodata.* section definition.
Signed-off-by: Youling
Use the common INIT_DATA_SECTION rule for the linker script in an effort
to regularize the linker script.
Signed-off-by: Youling Tang
---
arch/microblaze/kernel/vmlinux.lds.S | 24 +---
1 file changed, 1 insertion(+), 23 deletions(-)
diff --git a/arch/microblaze/kernel
When rtc->base or rtc->int_osc or rtc->losc or rtc->ext_losc is NULL,
we should free clk_data and rtc before the function returns to prevent
memleak.
Signed-off-by: Youling Tang
---
drivers/rtc/rtc-sun6i.c | 7 ---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a
The returns pointer is NULL when kzalloc fails to apply for space, so fix
kfree NULL pointer.
Signed-off-by: Youling Tang
---
arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c | 5 +
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c
b/arch
If the clk_register fails, we should free hw before function returns to
prevent memleak.
Signed-off-by: Youling Tang
---
arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c | 6 ++
1 file changed, 6 insertions(+)
diff --git a/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c
b/arch/arm/mach-omap2
prom_init_memory() unused in loongson64, only used in loongson2ef, and
has been declared in arch/mips/include/asm/mach-loongson2ef/loongson.h,
so remove the external declaration in loongson64.
Signed-off-by: Youling Tang
---
arch/mips/include/asm/mach-loongson64/loongson.h | 1 -
1 file changed
Use the common RW_DATA rule for the linker script in an effort to
regularize the linker script.
Signed-off-by: Youling Tang
---
arch/mips/kernel/vmlinux.lds.S | 15 +++
1 file changed, 3 insertions(+), 12 deletions(-)
diff --git a/arch/mips/kernel/vmlinux.lds.S b/arch/mips/kernel
Use the common INIT_DATA_SECTION rule for the linker script in an effort
to regularize the linker script.
Signed-off-by: Youling Tang
---
arch/powerpc/kernel/vmlinux.lds.S | 19 +--
1 file changed, 1 insertion(+), 18 deletions(-)
diff --git a/arch/powerpc/kernel/vmlinux.lds.S
The attribute of the text segment should be read-only and executable,
FLAGS(7) should be changed to FLAGS(5), like x86, s390 architecture.
Signed-off-by: Youling Tang
---
arch/mips/boot/compressed/ld.script | 2 +-
arch/mips/kernel/vmlinux.lds.S | 2 +-
2 files changed, 2 insertions(+), 2
In the include/asm-generic/vmlinux.lds.h file, the "must be the last"
comment indicates that DISCARDS should be placed in the last position
of SECTIONS, like x86, mips, riscv, etc.
Signed-off-by: Youling Tang
---
arch/arm64/kernel/vmlinux.lds.S | 13 +++--
1 file changed, 7
On 09/19/2020 03:02 PM, Jiaxun Yang wrote:
于 2020年9月19日 GMT+08:00 上午9:55:46, Youling Tang 写到:
When the kernel crashkernel parameter is specified with just a size,
we are supposed to allocate a region from RAM to store the crashkernel.
However, MIPS merely reserves physical address zero
000-00b47f87 : Kernel code
00b47f88-00df : Kernel data
00e6-01f73c7f : Kernel bss
0400-09ff : Crash kernel
1a00-1bff : pci@1a00
...
Signed-off-by: Youling Tang
---
arch/mips/kernel/setup.c | 24 +---
1 file changed, 21 insertions(+), 3 deleti
On 09/14/2020 12:32 PM, Jiaxun Yang wrote:
在 2020/9/12 9:59, Youling Tang 写道:
Commit a94e4f24ec83 ("MIPS: init: Drop boot_mem_map") left
the BOOT_MEM_INIT_RAM unused, remove it.
Signed-off-by: Youling Tang
---
arch/mips/include/asm/bootinfo.h | 1 -
1 file changed, 1 deletio
Commit a94e4f24ec83 ("MIPS: init: Drop boot_mem_map") left
the BOOT_MEM_INIT_RAM unused, remove it.
Signed-off-by: Youling Tang
---
arch/mips/include/asm/bootinfo.h | 1 -
1 file changed, 1 deletion(-)
diff --git a/arch/mips/include/asm/bootinfo.h b/arch/mips/include/asm/bootin
Remove some unused code.
Signed-off-by: Youling Tang
---
arch/mips/include/asm/netlogic/psb-bootinfo.h | 15 ---
1 file changed, 15 deletions(-)
diff --git a/arch/mips/include/asm/netlogic/psb-bootinfo.h
b/arch/mips/include/asm/netlogic/psb-bootinfo.h
index 6878307..272544b 100644
Remove duplicate semicolons at the end of line.
Signed-off-by: Youling Tang
---
drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c | 2 +-
drivers/gpu/drm/amd/display/dc/dml/display_mode_vba.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu
^
scripts/Makefile.build:283: recipe for target 'drivers/md/dm-thin.o' failed
make[2]: *** [drivers/md/dm-thin.o] Error 1
Signed-off-by: Youling Tang
---
arch/mips/include/asm/mach-loongson64/boot_param.h | 2 +-
arch/mips/loongson64/env.c | 4 ++-
On 08/14/2020 02:07 PM, Joe Perches wrote:
On Thu, 2020-08-13 at 20:45 +0800, Youling Tang wrote:
Regardless of whether the ret value is zero or non-zero, the trajectory
of the program execution is the same, so there is no need to compare.
Signed-off-by: Youling Tang
---
kernel
Regardless of whether the ret value is zero or non-zero, the trajectory
of the program execution is the same, so there is no need to compare.
Signed-off-by: Youling Tang
---
kernel/kexec_file.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/kernel/kexec_file.c b/kernel/kexec_file.c
index
There is some spelling mistakes in a dev_err message. Fix it.
Signed-off-by: Youling Tang
---
sound/soc/intel/common/sst-firmware.c | 4 ++--
sound/soc/intel/haswell/sst-haswell-ipc.c | 6 +++---
2 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/sound/soc/intel/common/sst
-by: Youling Tang
Reviewed-by: Kamalesh Babulal
---
tools/objtool/check.c | 30 ++
1 file changed, 10 insertions(+), 20 deletions(-)
diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index e034a8f..b9bfcb5 100644
--- a/tools/objtool/check.c
+++ b/tools/objt
There is no need to jump to the "out" tag when "ret < 0", just return
directly to "ret".
Signed-off-by: Youling Tang
---
tools/objtool/check.c | 30 ++
1 file changed, 10 insertions(+), 20 deletions(-)
diff --git a/tools/objtool/chec
Thank you for your reply and suggestions, I will remove
the "out" label code.
Thanks,
Youling
On 08/10/2020 08:57 PM, Kamalesh Babulal wrote:
On 10/08/20 9:36 am, Youling Tang wrote:
There is no need to jump to the "out" tag when "ret < 0", just return
There is no need to jump to the "out" tag when "ret < 0", just return
directly to "ret".
Signed-off-by: Youling Tang
---
tools/objtool/check.c | 16
1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/tools/objtool/check.c b/to
Fix typo: "notifiter" --> "notifier"
"overriden" --> "overridden"
Signed-off-by: Youling Tang
---
kernel/debug/debug_core.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/debug/debug_core.c b/kernel/debug/de
Add missing fclose() call to close "regdiagfile" in the function stop().
Signed-off-by: Youling Tang
---
drivers/scsi/aic7xxx/aicasm/aicasm.c | 9 +
1 file changed, 9 insertions(+)
diff --git a/drivers/scsi/aic7xxx/aicasm/aicasm.c
b/drivers/scsi/aic7xxx/aicasm/aicasm.c
ind
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