[PATCH] exec: make prepare_bprm_creds static

prepare_bprm_creds is not used outside exec.c, so there's no reason for it to have external linkage. Signed-off-by: Chanho Min --- fs/exec.c | 2 +- include/linux/binfmts.h | 1 - 2 files changed, 1 insertion(+), 2 deletions(-) diff --git a/fs/exec.c b/fs/exec.c index fc

RE: [PATCH] Revert "exec: make de_thread() freezable (was: Re: Linux 4.20-rc4)

> > > > I am sorry for the reverting this patch. It's also my fault that > > I didn't check lockdep. But, We decided to keep this patch in our product. > > Freeze fail is a real problem we've had for the last two years, > > whereas lockdep's notice is not a real problem. > > We hope this issue will

RE: [PATCH] Revert "exec: make de_thread() freezable (was: Re: Linux 4.20-rc4)

> From: Oleg Nesterov [mailto:o...@redhat.com] > Sent: Wednesday, December 05, 2018 11:36 PM > To: Ingo Molnar > Cc: Linus Torvalds; Linux List Kernel Mailing; Rafael J. Wysocki; Chanho Min; > Thomas Gleixner; Peter Zijlstra; Pavel Machek; Michal Hocko > Subject: Re: [PATCH]

RE: [PATCH] ALSA: pcm: Fix starvation on down_write_nonblock()

> Chanho Min wrote: > > > > > > > On Mon, 26 Nov 2018 06:36:37 +0100, > > > > > Chanho Min wrote: > > > > > > > > > > > > Commit 67ec1072b053 ("ALSA: pcm: Fix rwsem deadlock for non- > atomic > > >

RE: [PATCH] ALSA: pcm: Fix starvation on down_write_nonblock()

> > > On Mon, 26 Nov 2018 06:36:37 +0100, > > > Chanho Min wrote: > > > > > > > > Commit 67ec1072b053 ("ALSA: pcm: Fix rwsem deadlock for non-atomic > > > > PCM > > > > stream") fixes deadlock for non-atomic PCM stream.

RE: [PATCH] ALSA: pcm: Fix starvation on down_write_nonblock()

> > > > Hrm, converting unconditionally with msleep() looks too drastic. > > Yes, it looks drastic. But, IMHO, I can't say busy-spin is not non-drastic. Fix typo in this comment: I can't say busy-spin is not drastic. Thanks Chanho

RE: [PATCH] ALSA: pcm: Fix starvation on down_write_nonblock()

> On Mon, 26 Nov 2018 06:36:37 +0100, > Chanho Min wrote: > > > > Commit 67ec1072b053 ("ALSA: pcm: Fix rwsem deadlock for non-atomic PCM > > stream") fixes deadlock for non-atomic PCM stream. But, This patch > causes antother stuck. > > If writer is R

[PATCH] ALSA: pcm: Fix starvation on down_write_nonblock()

tick-based schedule()/wake_up_q(). Suggested-by: Wonmin Jung Signed-off-by: Chanho Min --- sound/core/pcm_native.c | 11 ++- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index 66c90f4..bdca0e1 100644 --- a/sound/core/pcm_nati

[PATCH] ALSA: pcm: Fix starvation on down_write_nonblock()

another approach. Signed-off-by: Chanho Min --- sound/core/pcm_native.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index 66c90f4..88d4aab 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -96,7 +96,7

RE: [PATCH v2] exec: make de_thread() freezable

> > > It's been some time since I have looked into this code so bear with me. > > > One thing is not really clear to me. Why does it help to exclude this > > > particular task from the freezer > > > > we don't exclude it, > > > > > when it is not sleeping in the freezer. > > > > Yes, it is not slee

[PATCH v2] exec: make de_thread() freezable

de_thread() freezable. It looks safe and works fine. Changes in v2: - changes for the same reason in "if (!thread_group_leader(tsk))" branch. (reported by Oleg) Suggested-by: Oleg Nesterov Signed-off-by: Chanho Min --- fs/exec.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletion

RE: [PATCH] exec: make de_thread() freezable

> Thanks, but please note another schedule() in "if > (!thread_group_leader(tsk))" > branch, we probably want to change it too? > > Oleg. Sounds right, The thread group leader might be frozen as well. I'll prepare v2.

[PATCH] exec: make de_thread() freezable

+0x9c/0x240 [] load_script+0x20c/0x228 [] search_binary_handler+0x9c/0x240 [] do_execveat_common.isra.14+0x4f8/0x6e8 [] compat_SyS_execve+0x38/0x48 [] el0_svc_naked+0x24/0x28 To fix this, make de_thread() freezable. It looks safe and works fine. Suggested-by: Oleg Nesterov Signed-off-by: Chanho

RE: [PATCH] freezer: fix freeze timeout on exec

> > > > Can't we simply change de_thread() to use freezable_schedule() ? > > > > Oleg. > > We need to change freezable_schedule_timeout() instead. > freezable_schedule also can't be frozen if sub-threads can't stop > schedule(). > Furthermore, I'm not sure if it is safe to freeze it at de_thread()

RE: [PATCH] freezer: fix freeze timeout on exec

> > > > To fix this, I suggest a patch by emboding the mentioned solution. > > First, revive and rework cancel_freezing_and_thaw() function whitch > > stops the task from sleeping in refrigirator reliably. And, The task > > to be killed does not allow to freeze. > > Can't we simply change de_threa

[PATCH] freezer: fix freeze timeout on exec

mentioned solution. First, revive and rework cancel_freezing_and_thaw() function whitch stops the task from sleeping in refrigirator reliably. And, The task to be killed does not allow to freeze. Reference: http://lkml.iu.edu/hypermail//linux/kernel/0702.2/1300.html Signed-off-by: Chanho Min --- inc

[PATCH v2] mmc: core: add driver strength selection when selecting hs400es

The driver strength selection is missed and required when selecting hs400es. So, It is added here. v2: add stable tag. Fixes: 81ac2af65793ecf ("mmc: core: implement enhanced strobe support") Cc: sta...@vger.kernel.org Signed-off-by: Hankyung Yu Signed-off-by: Chanho Min Reviewed-

[PATCH] mmc: core: add driver strength selection when selecting hs400es

From: "hankyung.yu" The drive strength setting is missed and required when selecting hs400es. So, It is added here. Signed-off-by: Hankyung Yu Signed-off-by: Chanho Min --- drivers/mmc/core/mmc.c | 36 +++- 1 file changed, 19 insertions(+), 17

RE: [PATCH v2 3/6] arm64: dts: lg1313: DT fix s/#interrupts-cells/#interrupt-cells/

> > Signed-off-by: Geert Uytterhoeven > --- > v2: > - New. > --- Acked-by: Chanho Min

RE: [PATCH v2 2/6] arm64: dts: lg1312: DT fix s/#interrupts-cells/#interrupt-cells/

> > Signed-off-by: Geert Uytterhoeven > Acked-by: Rob Herring > --- > v2: > - Add Acked-by, > - Rebased. > --- Acked-by: Chanho Min

[PATCH RESEND] ipconfig : Fix null reference to the freed dev_addr

== To fix this, I suggested patch that checks if device is available before the DHCP packet is sended. Signed-off-by: Chanho Min --- net/ipv4/ipconfig.c |4 1 file changed, 4 insertions(+) diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c index 0bc7412..5b29a32 100644

[PATCH] ipconfig : Fix null reference to the freed dev_addr

== To fix this, I suggested patch that checks if device is available before the DHCP packet is sended. Signed-off-by: Chanho Min --- net/ipv4/ipconfig.c |4 1 file changed, 4 insertions(+) diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c index 0bc7412..5b29a32 100644

[PATCH 2/2] arm64: defconfig: Enable Cadence MACB/GEM support

This patch enables the cadence MACB/GEM support that is needed by lg1k SoCs. Signed-off-by: Chanho Min --- arch/arm64/configs/defconfig |1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig index fd2d74d..4edbbac 100644 --- a/arch

[PATCH 1/2] arm64: dts: Add dts files for LG Electronics's lg1313 SoC

Add dtsi file to support lg1313 SoC which based on Cortex-A53. Also add dts file to support lg1312 reference board which based on lg1313 SoC. Signed-off-by: Chanho Min --- arch/arm64/boot/dts/lg/Makefile |1 + arch/arm64/boot/dts/lg/lg1313-ref.dts | 36 arch/arm64/boot/dts/lg

RE: [PATCH] arm64: dts: drop "arm,amba-bus" in favor of "simple-bus" part 2

ot/dts/lg/lg1312.dtsi > +++ b/arch/arm64/boot/dts/lg/lg1312.dtsi > @@ -125,7 +125,7 @@ > #size-cells = <1>; > #interrupts-cells = <3>; > > - compatible = "arm,amba-bus"; > + compatible = "simple-bus"; &

[RESEND PATCH] arm64: defconfig: Enable Cadence MACB/GEM support

This patch enables the cadence MACB/GEM support that is needed by lg1312 SoC. Signed-off-by: Chanho Min --- arch/arm64/configs/defconfig |1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig index 14dbe27..ed11cb6 100644 --- a/arch

[PATCH] arm64: defconfig: Enable Cadence MACB/GEM support

This patch enables the cadence MACB/GEM support that is needed by lg1312 SoC. Signed-off-by: Chanho Min --- arch/arm64/configs/defconfig |1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig index 14dbe27..ed11cb6 100644 --- a/arch

[PATCH v3 0/4] ARM64:SoC add a new platform, LG Electronics's lg1k

This is an initial series for supporting LG Electronics's lg1k SoCs, based on ARM Cortex-A53, mainly used for digital TVs. Chanho Min (4): arm64: add Kconfig entry for LG1K SoC family arm64: defconfig: enable ARCH_LG1K arm64: dts: Add dts files for LG Electronics's lg1312 SoC M

[PATCH v3 4/4] MAINTAINERS: add myself as ARM/LG1K maintainer

Signed-off-by: Chanho Min --- Changes for v2: - None Changes for v3: - None --- MAINTAINERS |6 ++ 1 file changed, 6 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index 4f55edf..20ca61a 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1245,6 +1245,12 @@ L

[PATCH v3 2/4] arm64: defconfig: enable ARCH_LG1K

Enable building LG1K support in the defconfig. Signed-off-by: Chanho Min --- Changes for v2: - None Changes for v3: - None --- arch/arm64/configs/defconfig |1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig index

[PATCH v3 1/4] arm64: add Kconfig entry for LG1K SoC family

This patch introduces ARCH_LG1K to enable LG Electronics's LG1K SoC family in Kconfig. Signed-off-by: Chanho Min --- Changes for v2: - None Changes for v3: - None --- arch/arm64/Kconfig.platforms |4 1 file changed, 4 insertions(+) diff --git a/arch/

[PATCH v3 3/4] arm64: dts: Add dts files for LG Electronics's lg1312 SoC

Add initial dtsi file to support lg1312 SoC which based on Cortex-A53. Also add dts file to support lg1312 reference board which based on lg1312 SoC. Signed-off-by: Chanho Min --- Changes for v2: - remove self-defined macro. - change root node's #size-cells

[RESEND PATCH v2 4/4] MAINTAINERS: add myself as ARM/LG1K maintainer

Signed-off-by: Chanho Min --- Changes for v2: - None --- MAINTAINERS |6 ++ 1 file changed, 6 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index 4f55edf..20ca61a 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1245,6 +1245,12 @@ L: linux-kernel@vger.kernel.org S

[RESEND PATCH v2 2/4] arm64: defconfig: enable ARCH_LG1K

Enable building LG1K support in the defconfig. Signed-off-by: Chanho Min --- Changes for v2: - None --- arch/arm64/configs/defconfig |1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig index 86581f7..14dbe27 100644 --- a

[RESEND PATCH v2 1/4] arm64: add Kconfig entry for LG1K SoC family

This patch introduces ARCH_LG1K to enable LG Electronics's LG1K SoC family in Kconfig. Signed-off-by: Chanho Min --- Changes for v2: - None --- arch/arm64/Kconfig.platforms |4 1 file changed, 4 insertions(+) diff --git a/arch/arm64/Kconfig.platforms b/arch/

[RESEND PATCH v2 0/4] ARM64:SoC add a new platform, LG Electronics's lg1k

This is an initial series for supporting LG Electronics's lg1k SoCs, based on ARM Cortex-A53, mainly used for digital TVs. Chanho Min (4): arm64: add Kconfig entry for LG1K SoC family arm64: defconfig: enable ARCH_LG1K arm64: dts: Add dts files for LG Electronics's lg1312 SoC M

[RESEND PATCH v2 3/4] arm64: dts: Add dts files for LG Electronics's lg1312 SoC

Add initial dtsi file to support lg1312 SoC which based on Cortex-A53. Also add dts file to support lg1312 reference board which based on lg1312 SoC. Signed-off-by: Chanho Min --- Changes for v2: - remove self-defined macro. - change root node's #size-cells

[PATCH] mm/highmem: simplify is_highmem()

The is_highmem() is can be simplified by use of is_highmem_idx(). This patch removes redundant code and will make it easier to maintain if the zone policy is changed or a new zone is added. Signed-off-by: Chanho Min --- include/linux/mmzone.h |5 + 1 file changed, 1 insertion(+), 4

RE: [PATCH v2 0/4] ARM64:SoC add a new platform, LG Electronics's lg1k

> Subject: [PATCH v2 0/4] ARM64:SoC add a new platform, LG Electronics's lg1k > > This is an initial series for supporting LG Electronics's lg1k SoCs, based on > ARM Cortex-A53, mainly used for digital TVs. > > Chanho Min (4): > arm64: add Kconfig entry for LG1K

[PATCH v2 1/4] arm64: add Kconfig entry for LG1K SoC family

This patch introduces ARCH_LG1K to enable LG Electronics's LG1K SoC family in Kconfig. Signed-off-by: Chanho Min --- Changes for v2: - None --- arch/arm64/Kconfig.platforms |4 1 file changed, 4 insertions(+) diff --git a/arch/arm64/Kconfig.platforms b/arch/

[PATCH v2 4/4] MAINTAINERS: add myself as ARM/LG1K maintainer

Signed-off-by: Chanho Min --- Changes for v2: - None --- MAINTAINERS |6 ++ 1 file changed, 6 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index 4f55edf..20ca61a 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1245,6 +1245,12 @@ L: linux-kernel@vger.kernel.org S

[PATCH v2 2/4] arm64: defconfig: enable ARCH_LG1K

Enable building LG1K support in the defconfig. Signed-off-by: Chanho Min --- Changes for v2: - None --- arch/arm64/configs/defconfig |1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig index 86581f7..14dbe27 100644 --- a

[PATCH v2 3/4] arm64: dts: Add dts files for LG Electronics's lg1312 SoC

Add initial dtsi file to support lg1312 SoC which based on Cortex-A53. Also add dts file to support lg1312 reference board which based on lg1312 SoC. Signed-off-by: Chanho Min --- Changes for v2: - remove self-defined macro. - change root node's #size-cells

[PATCH v2 0/4] ARM64:SoC add a new platform, LG Electronics's lg1k

This is an initial series for supporting LG Electronics's lg1k SoCs, based on ARM Cortex-A53, mainly used for digital TVs. Chanho Min (4): arm64: add Kconfig entry for LG1K SoC family arm64: defconfig: enable ARCH_LG1K arm64: dts: Add dts files for LG Electronics's lg1312 SoC M

RE: [PATCH 3/4] arm64: dts: Add dts files for LG Electronics's lg1312 SoC

> Hi, > > On Mon, Mar 07, 2016 at 01:09:59PM +0900, Chanho Min wrote: > > Add initial dtsi file to support lg1312 SoC which based on Cortex-A53. > > Also add dts file to support lg1312 reference board which based on > > lg1312 SoC. > > > > Signed-off-by: Ch

RE: [PATCH] tty: amba-pl011: use sg_table instead of scatterlist

> > @@ -344,17 +344,23 @@ static int pl011_sgbuf_init(struct dma_chan *chan, > struct pl011_sgbuf *sg, > > enum dma_data_direction dir) > > { > > dma_addr_t dma_addr; > > + int ret; > > > > sg->buf = dma_alloc_coherent(chan->device->dev, > > PL011_DMA_BUFFER_SIZE, &dma_ad

[PATCH] tty: amba-pl011: use sg_table instead of scatterlist

lementaion are allowed to returned remapped memory. So I use sg_table instead of scatterlist and change to dma_get_sgtable() implementaion. Reported-by: Wang, Annie Signed-off-by: Chanho Min --- drivers/tty/serial/amba-pl011.c | 33 - 1 file changed, 20 inserti

RE: [PATCH 0/4] ARM64:SoC add a new platform, LG Electronics's lg1k

> > The patches look ok in principle, but the timing is unfortunate: we are at - > rc7 now, just before the merge window, and we need to give this a little extra > time for review, so I think we should merge this for 4.7, not 4.6. It's ok for me. Chanho

[PATCH 2/4] arm64: defconfig: enable ARCH_LG1K

Enable building LG1K support in the defconfig. Signed-off-by: Chanho Min --- arch/arm64/configs/defconfig |1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig index 86581f7..14dbe27 100644 --- a/arch/arm64/configs/defconfig +++ b

[PATCH 4/4] MAINTAINERS: add myself as ARM/LG1K maintainer

Signed-off-by: Chanho Min --- MAINTAINERS |6 ++ 1 file changed, 6 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index 4f55edf..20ca61a 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1245,6 +1245,12 @@ L: linux-kernel@vger.kernel.org S: Maintained F: drivers

[PATCH 3/4] arm64: dts: Add dts files for LG Electronics's lg1312 SoC

Add initial dtsi file to support lg1312 SoC which based on Cortex-A53. Also add dts file to support lg1312 reference board which based on lg1312 SoC. Signed-off-by: Chanho Min --- arch/arm64/boot/dts/Makefile |1 + arch/arm64/boot/dts/lg/Makefile |5 + arch/arm64/boot/dts

[PATCH 1/4] arm64: add Kconfig entry for LG1K SoC family

This patch introduces ARCH_LG1K to enable LG Electronics's LG1K SoC family in Kconfig. Signed-off-by: Chanho Min --- arch/arm64/Kconfig.platforms |4 1 file changed, 4 insertions(+) diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms index 21074f6..b002bba 1

[PATCH 0/4] ARM64:SoC add a new platform, LG Electronics's lg1k

This is an initial series for supporting LG Electronics's lg1k SoCs, based on ARM Cortex-A53, mainly used for digital TVs. Chanho Min (4): arm64: add Kconfig entry for LG1K SoC family arm64: defconfig: enable ARCH_LG1K arm64: dts: Add dts files for LG Electronics's lg1312 SoC M

[PATCH] arm64: add Kconfig entry for LG1K SoC family

This patch introduces ARCH_LG1K to enable LG Electronics's LG1K SoC family in Kconfig. The dts and defconfig will be submitted soon in another series. Signed-off-by: Chanho Min --- arch/arm64/Kconfig.platforms |4 1 file changed, 4 insertions(+) diff --git a/arch/

[PATCH] ARM:mm: fix kmap_atomic_to_page

Since kmap_atomic returns the pkmap address without a new mapping to fixmap for the page that is already mapped by kmap, It should be considered for the pkmap address in kmap_atomic_to_page. Signed-off-by: Chanho Min --- arch/arm/mm/highmem.c | 11 --- 1 file changed, 8 insertions

[PATCH] mm: add parameter to disable faultaround

parameter "nofaultaround" for situations where users want to disable faultaround. Signed-off-by: Chanho Min --- mm/memory.c | 11 ++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/mm/memory.c b/mm/memory.c index 4879b42..c36a96f 100644 --- a/mm/memory.c +++ b/m

[PATCH] ARM: cacheflush: disallow pending signals during cacheflush

4423d6a. Signed-off-by: Chanho Min --- arch/arm/kernel/traps.c | 19 --- 1 file changed, 19 deletions(-) diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c index abd2fc0..275e086 100644 --- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -521,25 +52

[PATCH] mmc:core: fix hs400 timing selection

27;s UHS timing mode should be set to DDR50 after the bus width is set to DDR 8bit. Signed-off-by: Hankyung Yu Signed-off-by: Chanho Min --- drivers/mmc/core/mmc.c | 13 ++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc

[PATCH v2] ARM: timer-sp: ensure interrupt is cleared at sp804_of_init

clockevent is registered. Changes since v1: - Move to sp804_of_init - Clear TIMER2 interrupt - Update commit log Signed-off-by: Chanho Min --- arch/arm/common/timer-sp.c |4 1 file changed, 4 insertions(+) diff --git a/arch/arm/common/timer-sp.c b/arch/arm/common/timer-sp.c index fd6bff0

[PATCH] ARM: timer-sp: ensure interrupt is cleared at sp804_clockevents_init

. Signed-off-by: Chanho Min --- arch/arm/common/timer-sp.c |2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/common/timer-sp.c b/arch/arm/common/timer-sp.c index fd6bff0..b658873 100644 --- a/arch/arm/common/timer-sp.c +++ b/arch/arm/common/timer-sp.c @@ -205,6 +205,8 @@ void __init

[PATCH v2] mmc:sdhci: handle busy-end interrupt during command

than CMD23. Also, similar patch is submitted by: Gwendal Grignou Changes since v1: Fixed conflict with the next of git.linaro.org/people/ulf.hansson/mmc.git and Tested if issue is fixed again. Signed-off-by: Hankyung Yu Signed-off-by: Chanho Min Tested-by: Youssef TRIKI --- drivers/mmc/ho

[PATCH] mmc:sdhci: handle busy-end interrupt during command

than CMD23. Also, similar patch is submitted by: Gwendal Grignou Signed-off-by: Hankyung Yu Signed-off-by: Chanho Min Tested-by: Youssef TRIKI --- drivers/mmc/host/sdhci.c | 17 +++-- include/linux/mmc/sdhci.h |1 + 2 files changed, 16 insertions(+), 2 deletions(-) di

[PATCH] arm: dma-mapping: fix potential build error under !CMA

27;: arch/arm/mm/dma-mapping.c:361:2: error: implicit declaration of function 'dev_get_cma_area' [-Werror=implicit-function-declaration] Signed-off-by: Chanho Min --- arch/arm/include/asm/dma-contiguous.h |2 +- include/asm-generic/dma-contiguous.h | 13 +++-- 2 file

[PATCH] arm64:kconfig: Add default line for CONFIG_COMPAT

Correct minimal config is not generated without default line. 'default n' should be added to set COMPAT to 'n'. Otherwise, Enabling COMPAT is not reflected to minial config. Signed-off-by: Chanho Min --- arch/arm64/Kconfig |1 + 1 file changed, 1 insertion(+) dif

[PATCH] arm64:kconfig: make default for CONFIG_COMPAT

'make savedefconfig' doesn't generate defconfig properly due to missing COMPAT default. So Add default and set to yes. Signed-off-by: Chanho Min --- arch/arm64/Kconfig |1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 4907b85.

[PATCH] arm64:init: Move of_clk_init to time_init

Clock providers should be initialized before clocksource_of_init. If not, Clock source initialization can be fail to get the clock. Signed-off-by: Chanho Min --- arch/arm64/kernel/setup.c |1 - arch/arm64/kernel/time.c |3 ++- 2 files changed, 2 insertions(+), 2 deletions(-) diff

[PATCH RESEND] mmc:sdhci: handle busy-end interrupt during command

with the bellow warning. "mmc0: Got command interrupt 0x0001 even though no command operation was in progress." Can anyone ACK/NACK of this patch? Any comment will be appreciated. Signed-off-by: Hankyung Yu Signed-off-by: Chanho Min Tested-by: Youssef TRIKI --- drivers/mmc/ho

[PATCH RESEND] mmc:sdhci: handle busy-end interrupt during command

with the bellow warning. "mmc0: Got command interrupt 0x0001 even though no command operation was in progress." Can anyone ACK/NACK of this patch? Any comment will be appreciated. Signed-off-by: Hankyung Yu Signed-off-by: Chanho Min --- drivers/mmc/host/sdhci

[PATCH RESEND] mmc:sdhci: handle busy-end interrupt during command

with the bellow warning. "mmc0: Got command interrupt 0x0001 even though no command operation was in progress." Signed-off-by: Hankyung Yu Signed-off-by: Chanho Min --- drivers/mmc/host/sdhci.c | 17 +++-- include/linux/mmc/sdhci.h |1 + 2 files changed, 16

[PATCH] mmc:sdhci: handle busy-end interrupt during command

with the bellow warning. "mmc0: Got command interrupt 0x0001 even though no command operation was in progress." Signed-off-by: Hankyung Yu Signed-off-by: Chanho Min --- drivers/mmc/host/sdhci.c | 17 +++-- include/linux/mmc/sdhci.h |1 + 2 files changed, 16

Re : Re: Re: Re : Re: [PATCH] Squashfs: add asynchronous read support

> read_pages > for(page_idx ...) { > if (!add_to_page_cache_lru)) { <-- 1) > mapping->a_ops->readpage(filp, page) > squashfs_readpage > for (i ...) { 2) Here, 31 pages are inserted into page cache > grab_cahe_page_nowait <--/ > add_to

Re: Re: Re : Re: [PATCH] Squashfs: add asynchronous read support

> Please don't break thread. > You should reply to my mail instead of your original post. Sorry, It seems to be my mailer issue. I'm trying to fix it. > It's a result which isn't what I want to know. > What I wnat to know is why upper layer issues more I/O per second. > For example, you read 32K

Re : Re: [PATCH] Squashfs: add asynchronous read support

> I did test it on x86 with USB stick and ARM with eMMC on my Nexus 4. > In experiment, I couldn't see much gain like you both system and even it > was regressed at bs=32k test, maybe workqueue allocation/schedule of work > per I/O. > Your test is rather special or what I am missing? Can you speci

[PATCH] Squashfs: add asynchronous read support

) copied, 0.942413 seconds, 59.4MB/s Signed-off-by: Chanho Min --- fs/squashfs/Kconfig |9 ++ fs/squashfs/block.c | 262 + fs/squashfs/file_direct.c |8 +- fs/squashfs/page_actor.c |3 +- fs/squashfs/page_actor.h |3 +- fs

[PATCH] [media] uvcvideo: fix data type for pan/tilt control

max are -36000 and 36000, the setting value between of this range is always 36000. So, Its data type should be changed to signed. Signed-off-by: Chanho Min --- drivers/media/usb/uvc/uvc_ctrl.c |4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/media/usb/uvc

[PATCH] mmc: sdhci: add support for pre_req and post_req

/null bs=64k count=1024 67108864 bytes (64.0MB) copied, 0.993098 seconds, 64.4MB/s Signed-off-by: Chanho Min --- drivers/mmc/host/sdhci.c | 96 +++-- include/linux/mmc/sdhci.h |6 +++ 2 files changed, 90 insertions(+), 12 deletions(-) diff --git a

Re : Re: [PATCH RESEND v3] bitmap: speed up bitmap_find_free_region

. before = local_clock(); bitmap_find_free_region(bitmap, 1024,0); after = local_clock(); Chanho Min, -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/major

[PATCH RESEND v3] bitmap: speed up bitmap_find_free_region

patch: 15475 ns after patch: 16131 ns Changes compared to v1: - Modified unnecessarily complicated code. - Fixed the buggy code if `bits' is not an multiple of BITS_PER_LONG. Changes compared to v2: - Removed bitmap_find_free_one and merged it to bitmap_find_free_region. Signed-off-by:

[PATCH RESEND] lib: add weak clz/ctz functions

Uytterhoeven Signed-off-by: Chanho Min --- lib/Makefile |2 +- lib/clz_ctz.c | 58 + 2 files changed, 59 insertions(+), 1 deletion(-) create mode 100644 lib/clz_ctz.c diff --git a/lib/Makefile b/lib/Makefile index af79e8c..3eacb2c 100644 --- a

Re : [PATCH, RFC 09/22] crypto: lz4: don't build on ARM

ctions for __builtin_clz/ctz. Porting them to lib is in progress: http://marc.info/?l=linux-kernel&m=136748861811956&w=2 But, It doesn't happen on ARM, PowerPC and x86. Thanks Chanho Min mime.txt Description: Binary data

[PATCH] lib: add weak clz/ctz functions

Uytterhoeven Signed-off-by: Chanho Min --- lib/Makefile |2 +- lib/clz_ctz.c | 58 + 2 files changed, 59 insertions(+), 1 deletion(-) create mode 100644 lib/clz_ctz.c diff --git a/lib/Makefile b/lib/Makefile index af79e8c..3eacb2c 100644 --- a

[PATCH] lib: add weak __clzsi2()/__clzdi2() functions

Signed-off-by: Chanho Min --- lib/Makefile |2 +- lib/clz.c| 36 2 files changed, 37 insertions(+), 1 deletion(-) create mode 100644 lib/clz.c diff --git a/lib/Makefile b/lib/Makefile index af79e8c..e17b3ee 100644 --- a/lib/Makefile +++ b/lib/Makefile

Re: [PATCH 1/2] lib: Add lz4 compressor module

>> gcc seems to define __builtin_clz as __clzsi2 in some architecture. >> But, kernel doesn't link libgcc.a. >> If kernel should use gcc's built-in function without libgcc.a, >> do we need to port __clzsi2 to 'arch/*/lib/*'? > >This breaks alpha (gcc-4.4.4) as well. Can we please get this fixed >

[PATCH v3] bitmap: speed up bitmap_find_free_region

patch: 15475 ns after patch: 16131 ns Changes compared to v1: - Modified unnecessarily complicated code. - Fixed the buggy code if `bits' is not an multiple of BITS_PER_LONG. Changes compared to v2: - Removed bitmap_find_free_one and merged it to bitmap_find_free_region. Signed-off-by:

[PATCH v2] bitmap: speedup in bitmap_find_free_region when order is 0

code if `bits' is not an multiple of BITS_PER_LONG. Signed-off-by: Chanho Min --- lib/bitmap.c | 36 1 file changed, 36 insertions(+) diff --git a/lib/bitmap.c b/lib/bitmap.c index 06f7e4f..663fc28 100644 --- a/lib/bitmap.c +++ b/lib/bitmap.c @@ -1

[PATCH] bitmap: speedup in bitmap_find_free_region when order is 0

free bit. But, If This is applied, it takes 64 for-loops. Instead, if free bit is in the first index of the bitmaps, It will be needed additional 1 for-loop. But from second index, It will be speed up significantly. Signed-off-by: Chanho Min --- lib/bitmap.c | 34

[PATCH] ARM: PL011: Add support for Rx DMA buffer polling.

polling timeout. Changes compared to v2: - Use of consistent DMA mappings for default. - Added dma_rx_poll_enable in platform data to adjust the polling time according to the baud rate. - remove unnecessary lock from the polling function. Signed-off-by: Chanho Min --- drivers/tty/s

[PATCH 2/2] crypto: Add lz4 Cryptographic API

This patch adds support for lz4 and lz4hc compression algorithm using the lib/lz4/* codebase. Signed-off-by: Chanho Min --- crypto/Kconfig | 16 + crypto/Makefile |2 ++ crypto/lz4.c| 105 +++ crypto/lz4hc.c | 105

[PATCH 1/2] lib: Add lz4 compressor module

be allocated with the size of lz4_compressbound. Signed-off-by: Chanho Min --- include/linux/lz4.h | 36 lib/Kconfig |6 + lib/Makefile |2 + lib/lz4/Makefile |2 + lib/lz4/lz4_compress.c | 443 + lib

[PATCH 0/2] lib,crypto: Add lz4 compressor module and crypto API

essed data Size: 101 MB Compressed Size compression Speed LZO 72.1MB 32.1MB/s, 33.0MB/s(UA) LZ4 75.1MB 30.4MB/s, 35.9MB/s(UA) LZ4HC 59.8MB2.4MB/s, 2.5MB/s(UA) - UA: Unaligned memory Access support - Latest patch set for LZO applied Chanho Min

Re: [PATCH] vmalloc: Remove alloc_map from vmap_block.

| sys_ioctl | | | ret_fast_syscall | | | malloc | | --0.16%-- [...] ... Thanks Chanho Min -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.

[PATCH] vmalloc: Remove alloc_map from vmap_block.

off-by: Chanho Min Signed-off-by: Joonsoo Kim --- mm/vmalloc.c | 23 +-- 1 file changed, 1 insertion(+), 22 deletions(-) diff --git a/mm/vmalloc.c b/mm/vmalloc.c index 5123a16..4fd3555 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -744,7 +744,6 @@ struct vmap_bl

Re: [PATCH v2] ARM: PL011: Add support for Rx DMA buffer polling

> Anyway I just want to know we still need auto scale of poll rate. I correct the mistake in this sentence. Anyway I just want to know whether we still need auto scale of poll rate or not. Thanks Chanho -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a mes

Re: [PATCH v2] ARM: PL011: Add support for Rx DMA buffer polling

> Then it can use DMA polling post-wakeup? Yes, It will be switched back to DMA polling on UART IRQ. > What do you mean by "user" here? Userspace? Or > "platform data parameter"? platform data parameter > Not platform I think. Per usecase. > Are you not actually thinking about things like the abo

Re: [PATCH v2] ARM: PL011: Add support for Rx DMA buffer polling

On Mon, Jan 28, 2013 at 5:28 PM, Linus Walleij wrote: > On Mon, Jan 28, 2013 at 9:15 AM, Chanho Min wrote: >> [Russell] >>>Well, I thought I had explained that I'd prefer to see the poll rate >>>adjusted with the baud rate, but maybe I wasn't explicit eno

RE: [PATCH v2] ARM: PL011: Add support for Rx DMA buffer polling

>Well, I thought I had explained that I'd prefer to see the poll rate >adjusted with the baud rate, but maybe I wasn't explicit enough. >Instead, what we seem to have ended up with are two new entries in >platform data (which we're trying to get away from with DT): > >+ unsigned int dma_rx_po

Re: [PATCH v2] ARM: PL011: Add support for Rx DMA buffer polling

On Tue, Jan 22, 2013 at 10:18 PM, Linus Walleij wrote: >> - If poll timer is activated, We use consistent DMA mappings to avoid from >> the frequent cache operation of the timer function. sg->coherency is used >> to check if buffer is coherent. > > Hm. We can begin like this but maybe we shoul

[PATCH v2] ARM: PL011: Add support for Rx DMA buffer polling

taken by polling. Signed-off-by: Chanho Min --- drivers/tty/serial/amba-pl011.c | 160 ++- include/linux/amba/serial.h |2 + 2 files changed, 145 insertions(+), 17 deletions(-) diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011

Re: [PATCH] ARM: PL011: Add support for Rx DMA buffer polling

>Looking back at the patch, do you know if we can get rid of >some of the #ifdefs and have this like a runtime switch set in >struct amba_pl011_data or Device Tree? Yes, I know. I'll come back with v2 soon. Thanks, Chanho -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" i

Re: [PATCH] ARM: PL011: Add support for Rx DMA buffer polling

On Mon, Jan 14, 2013 at 3:46 PM, Linus Walleij wrote: > On Mon, Jan 14, 2013 at 1:26 AM, Russell King - ARM Linux >> What you describe above is exactly the problem I see on the Versatile >> platform with it's PL080 and PL011. I made the comment that this setup >> can't work properly as it stands.

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