Re: [Question about DMA] Consistent memory?

On 2-1-2016 11:39, Russell King - ARM Linux wrote: On Thu, Dec 31, 2015 at 04:50:54PM +0900, Masahiro Yamada wrote: Hi. I am new to the Linux DMA APIs. First, I started by reading Documentation/DMA-API.txt, but I am confused with the term "consistent memory". Just read "coherent memory"

Re: [PATCH 3/3] rsi: Replace variable initialisations by assignments in rsi_send_data_pkt()

SF Markus Elfring : > From: Markus Elfring > Date: Sat, 2 Jan 2016 15:25:34 +0100 > > Replace explicit initialisation for two local variables at the beginning > by assignments. It makes no sense for the 'adapter' variable. --

Re: GPF in shm_lock ipc

Hi Dmitry, On 01/02/2016 01:19 PM, Dmitry Vyukov wrote: On Sat, Jan 2, 2016 at 12:33 PM, Manfred Spraul wrote: Hi Dmitry, shm locking differs too much from msg/sem locking, I never looked at it in depth, so I'm not able to perform a proper review. Except for the

Re: [PATCH 1/8] mm: Add optional support for PUD-sized transparent hugepages

On Mon, Dec 28, 2015 at 12:05:51PM +0200, Kirill A. Shutemov wrote: > On Thu, Dec 24, 2015 at 11:20:30AM -0500, Matthew Wilcox wrote: > > diff --git a/include/linux/mm.h b/include/linux/mm.h > > index 4bf3811..e14634f 100644 > > --- a/include/linux/mm.h > > +++ b/include/linux/mm.h > > @@ -1958,6

Re: Nokia N900: Broken lirc ir-rx51 driver

Hi, * Pali Rohár [160102 06:46]: > --- a/drivers/media/rc/ir-rx51.c > +++ b/drivers/media/rc/ir-rx51.c > @@ -25,9 +25,9 @@ > #include > #include > #include > +#include > > -#include > -#include > +#include "../../../arch/arm/plat-omap/include/plat/dmtimer.h"

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Re: [PATCH 1/2] mmc: omap_hsmmc: Add support for slot-name property in DT

On Monday 28 December 2015 15:55:28 Arnd Bergmann wrote: > On Monday 28 December 2015 15:54:35 Pali Rohár wrote: > > On Monday 28 December 2015 15:41:01 Arnd Bergmann wrote: > > > On Monday 28 December 2015 15:28:48 Pali Rohár wrote: > > > > On Monday 28 December 2015 15:14:50 Arnd Bergmann wrote:

Re: [PATCH 1/3] rsi: Delete unnecessary variable initialisations in rsi_send_mgmt_pkt()

-rsi-Fine-tuning-for-two-function-implementations/20160102-224740 base: https://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next.git master config: x86_64-randconfig-s2-01030012 (attached as .config) reproduce: # save the attached .config to linux build tree make

Re: [PATCH 7/8] xfs: Support for transparent PUD pages

On Thu, Dec 31, 2015 at 10:30:27AM +1100, Dave Chinner wrote: > > @@ -1637,6 +1669,7 @@ xfs_filemap_pfn_mkwrite( > > static const struct vm_operations_struct xfs_file_vm_ops = { > > .fault = xfs_filemap_fault, > > .pmd_fault = xfs_filemap_pmd_fault, > > + .pud_fault =

Re: Nokia N900: twl4030-power different data in DTS and board code

* Pali Rohár [160102 06:14]: > Hello, > > now I'm looking at differences between legacy board code and DTS file > for Nokia N900 and I see some inconsistency for twl4030-power driver. > > In board code are defined more twl4030 power scripts which override > defaults

[PATCH 5/5] xen-netback: Delete an unnecessary variable initialisation in xen_register_watchers()

From: Markus Elfring Date: Sat, 2 Jan 2016 18:28:26 +0100 Omit explicit initialisation at the beginning for one local variable that is redefined before its first use. Signed-off-by: Markus Elfring ---

Re: [Question about DMA] Consistent memory?

On Sat, Jan 02, 2016 at 08:17:51AM -0800, James Bottomley wrote: > On Sat, 2016-01-02 at 10:39 +, Russell King - ARM Linux wrote: > > On Thu, Dec 31, 2015 at 04:50:54PM +0900, Masahiro Yamada wrote: > > > Hi. > > > > > > I am new to the Linux DMA APIs. > > > > > > First, I started by reading

Re: [PATCH 3/3] net-iwlegacy: Another refactoring for il_eeprom_init()

On Sat, Jan 2, 2016 at 2:02 AM, SF Markus Elfring wrote: > From: Markus Elfring > Date: Fri, 1 Jan 2016 21:16:01 +0100 > > Rename a jump label according to the current Linux coding style convention. > > Signed-off-by: Markus Elfring

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[PATCH] staging: most: add __iomem for io_base and registers

This removes a few Sparse warnings. Signed-off-by: Hugo Camboulive --- drivers/staging/most/hdm-dim2/dim2_hal.c | 6 +++--- drivers/staging/most/hdm-dim2/dim2_hal.h | 6 +++--- drivers/staging/most/hdm-dim2/dim2_hdm.c | 6 +++---

[PATCH] ext4: disable retry logic in ext4_set_encrypted_filename

gcc correctly warns that the ctx variable in ext4_set_encrypted_filename has gone out of scope in ext4_set_encrypted_filename if we enter the retry path and a 'goto' into the previous code block can not guarantee to get the contents back: fs/ext4/namei.c: In function

Re: [PATCH v2] crypto: algif_skcipher - Require setkey before accept(2)

Am Samstag, 2. Januar 2016, 15:41:34 schrieb Milan Broz: Hi Milan, > On 01/02/2016 12:52 PM, Milan Broz wrote: > > On 12/25/2015 08:40 AM, Herbert Xu wrote: > >> Dmitry Vyukov wrote: > >>> I am testing with your two patches: > >>> crypto: algif_skcipher - Use new skcipher

[PATCH 0/3] NFC-mei_phy: Fine-tuning for two function implementations

From: Markus Elfring Date: Sat, 2 Jan 2016 21:47:30 +0100 A few update suggestions were taken into account from static source code analysis. Markus Elfring (3): Refactoring for mei_nfc_connect() Refactoring for mei_nfc_if_version() Delete an unnecessary

Re: [RESEND PATCH v2 0/9] eeprom: at24: at24cs series serial number read

On Fri, Dec 11, 2015 at 02:55:10PM +0100, Bartosz Golaszewski wrote: > 2015-12-11 13:08 GMT+01:00 Wolfram Sang : > > On Wed, Dec 02, 2015 at 11:25:17AM +0100, Bartosz Golaszewski wrote: > >> Chips from the at24cs EEPROM series have an additional read-only memory > >> area > >>

[PATCH 3/3] NFC-mei_phy: Delete an unnecessary variable initialisation in mei_nfc_if_version()

From: Markus Elfring Date: Sat, 2 Jan 2016 21:40:10 +0100 Omit explicit initialisation at the beginning for one local variable that is redefined before its first use. Signed-off-by: Markus Elfring --- drivers/nfc/mei_phy.c | 2 +-

[PATCH 2/3] NFC-mei_phy: Refactoring for mei_nfc_if_version()

From: Markus Elfring Date: Sat, 2 Jan 2016 21:33:04 +0100 Rename a jump label according to the current Linux coding style convention. Signed-off-by: Markus Elfring --- drivers/nfc/mei_phy.c | 5 ++--- 1 file changed, 2

Re: [PATCH 1/2] net-qmi_wwan: Refactoring for qmi_wwan_bind()

SF Markus Elfring writes: > From: Markus Elfring > Date: Fri, 1 Jan 2016 17:32:07 +0100 > > Reduce the scope for the local variable "desc" to one branch > of an if statement. This patch is harmless. But is also pointless. You

Re: [PATCH] orangefs: Don't pollute global namespace

Am 02.01.2016 um 23:04 schrieb Richard Weinberger: > Prefix public functions with "orangefs_" do don't > pollute the global namespace. > > This fixes a build issue on UML which also has block_signals(). > > Signed-off-by: Richard Weinberger > --- > fs/orangefs/orangefs-kernel.h

Re: [PATCH v2 0/2] Introduce the bulk IV mode for improving the crypto engine efficiency

On 12/17/2015 08:37 AM, Baolin Wang wrote: > Hi Milan, > > On 16 December 2015 at 16:08, Milan Broz wrote: >> On 12/16/2015 04:18 AM, Baolin Wang wrote: >>> From the dm-crypt performance report, we found it shows low efficiency >>> with crypto engine for some mode (like ecb

Re: [PATCH 1/3] NFC-mei_phy: Refactoring for mei_nfc_connect()

Hi Markus, On Sun, Jan 3, 2016 at 7:54 AM, SF Markus Elfring wrote: > From: Markus Elfring > Date: Sat, 2 Jan 2016 21:21:24 +0100 > > This issue was detected by using the Coccinelle software. > > Adjust jump targets according to the

Re: [PATCH] PowerCap: constify powercap_zone_ops and powercap_zone_constraint_ops structures

On Wednesday, December 23, 2015 10:59:55 PM Julia Lawall wrote: > The powercap_zone_ops and powercap_zone_constraint_ops structures are never > modified, so declare them as const. > > Most of the actual changes adjust indentation to accomodate the const > keyword. > > Done with the help of

Re: [PATCH v2] PM / OPP: Fix parsing of opp-microvolt and opp-microamp properties

On Friday, December 18, 2015 07:21:35 AM Viresh Kumar wrote: > On 17-12-15, 19:04, Bartlomiej Zolnierkiewicz wrote: > > Commit 01fb4d3c39d3 ("PM / OPP: Parse 'opp--' > > bindings") broke support for parsing standard opp-microvolt and > > opp-microamp properties. Fix it by setting 'name' string to

Re: [PATCH] Staging: speakup: Fix getting port information

I had a patch which also worked, but yours may be better -- I enclose it here for your information. --- drivers/staging/speakup/serialio.h.old 2015-08-30 14:34:09.0 -0400 +++ drivers/staging/speakup/serialio.h 2015-10-07 06:27:04.880829874 -0400 @@ -1,22 +1,24 @@ #ifndef

Re: cgroup: BUG: unable to handle kernel NULL pointer dereference

On Sat, Jan 02, 2016 at 01:50:49PM -0800, Jeremiah Mahler wrote: > Serge, > > On Sat, Jan 02, 2016 at 12:24:16PM -0600, Serge E. Hallyn wrote: > [...] > > > > Tried to reproduce with setting CONFIG_CFQ_GROUP_IOSCHED=y, but did not > > succeed. Could you send me the .config? Also, if someone

[PATCH 1/3] NFC-mei_phy: Refactoring for mei_nfc_connect()

From: Markus Elfring Date: Sat, 2 Jan 2016 21:21:24 +0100 This issue was detected by using the Coccinelle software. Adjust jump targets according to the current Linux coding style convention. Signed-off-by: Markus Elfring ---

Re: [PATCH] DT: i2c: Update vendor prefix for 24c00

On Sun, Dec 27, 2015 at 04:57:48PM +0200, Andy Shevchenko wrote: > On Wed, Dec 23, 2015 at 9:18 PM, Akshay Bhat wrote: > > "at" is not a valid vendor prefix, correcting the same to "atmel" > > > > I'm afraid you can't just do this change alone as it's used in some > DTS.

Re: [PATCH v4 2/2] virtio_balloon: Use a workqueue instead of "vballoon" kthread

On Sat, Jan 02, 2016 at 06:43:16AM -0500, Tejun Heo wrote: > Hello, > > On Fri, Jan 01, 2016 at 12:18:17PM +0200, Michael S. Tsirkin wrote: > > > My initial idea was to use a dedicated workqueue. Michael S. Tsirkin > > > suggested using a system one. Tejun Heo confirmed that the system > > >

Re: [PATCH] [BUG] clk: rockchip: don't mark clock names as initconst

Quoting Heiko Stübner (2016-01-01 14:05:10) > Am Freitag, 1. Januar 2016, 22:50:43 schrieb Arnd Bergmann: > > On Friday 01 January 2016 18:06:30 Heiko Stübner wrote: > > > "[PATCH] clk: rockchip: fix section mismatches with new child-clocks" [0] > > > > > > should be in Mike's + Stephen's inbox

[PATCH] ext4: Fix return code checking of crypto_alloc_ablkcipher()

This function does never return NULL, IS_ERR() is sufficent. Signed-off-by: Richard Weinberger --- fs/ext4/crypto_key.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/ext4/crypto_key.c b/fs/ext4/crypto_key.c index c5882b3..436ea2a 100644 ---

[PATCH] ubifs: Use XATTR_*_PREFIX_LEN

...instead of open coding it. Signed-off-by: Richard Weinberger --- fs/ubifs/xattr.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/ubifs/xattr.c b/fs/ubifs/xattr.c index e8b01b7..e53292d 100644 --- a/fs/ubifs/xattr.c +++ b/fs/ubifs/xattr.c @@ -267,7

Re: [Y2038] [PATCH v2 2/2] ppdev: add support for compat ioctl

On Saturday 02 January 2016 11:59:29 Sudip Mukherjee wrote: > > > > Just to be sure we are talking about the same thing: you mean running a > > 64-bit > > kernel in a kvm guest with a 32-bit file system, right? Running a 32-bit > > kvm guest on a 64-bit host would not be interesting of course. >

Re: [PATCH 1/2] mmc: omap_hsmmc: Add support for slot-name property in DT

On Saturday 02 January 2016 16:22:03 Pali Rohár wrote: > On Monday 28 December 2015 15:55:28 Arnd Bergmann wrote: > > On Monday 28 December 2015 15:54:35 Pali Rohár wrote: > > > > > > > > I mean you can add the platform data to the omap_auxdata_lookup[] > > > > table for this board. > > > > > >

Re: [PATCH] staging: most: add __iomem for io_base and registers

On Sat, Jan 02, 2016 at 08:30:21PM +, Hugo Camboulive wrote: > This removes a few Sparse warnings. > + g.dim2 = (struct dim2_regs __iomem *)dim_base_address; > -u8 dim_startup(void *dim_base_address, u32 mlb_clock); > +u8 dim_startup(void __iomem *dim_base_address, u32 mlb_clock);

Re: [PATCH] DT: i2c: Add Epson RX8010 to list of trivial devices

On Sun, Dec 27, 2015 at 05:02:48PM +0200, Andy Shevchenko wrote: > On Wed, Dec 23, 2015 at 8:38 PM, Akshay Bhat wrote: > > This adds devicetree documentation for the bindings of rtc-rx8010 > > driver. > > > > Signed-off-by: Akshay Bhat > > --- >

[PATCH v2] staging: most: add __iomem for io_base and registers

This removes a few Sparse warnings. Signed-off-by: Hugo Camboulive --- drivers/staging/most/hdm-dim2/dim2_hal.c | 4 ++-- drivers/staging/most/hdm-dim2/dim2_hal.h | 7 --- drivers/staging/most/hdm-dim2/dim2_hdm.c | 6 +++---

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[PATCH] orangefs: Don't pollute global namespace

Prefix public functions with "orangefs_" do don't pollute the global namespace. This fixes a build issue on UML which also has block_signals(). Signed-off-by: Richard Weinberger --- fs/orangefs/orangefs-kernel.h | 4 ++-- fs/orangefs/orangefs-utils.c | 4 ++--

[PATCH -next] clocksource: Fix dependencies for !HAS_IOMEM archs

Not every arch has io memory. So, unbreak the build by fixing the dependencies. Signed-off-by: Richard Weinberger --- drivers/clocksource/Kconfig | 12 +++- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/clocksource/Kconfig

Re: [PATCH] Staging: speakup: Fix getting port information

Samuel Thibault, on Sun 03 Jan 2016 00:25:29 +0100, wrote: > 5e6dc54 broke the port information in the speakup driver: > SERIAL_PORT_DFNS only gets defined if asm/serial.h is included. > > Along the way, make sure that we do have information for the requested > serial port number (index) (It'd

Re: [PATCH 00/42] ACPICA: 20151218 Release

On Tuesday, December 29, 2015 01:52:19 PM Lv Zheng wrote: > The 20151218 ACPICA kernel-resident subsystem updates are linuxized based > on the linux-pm/linux-next branch. > > The patchset has passed the following build/boot tests. > Build tests are performed as follows: > 1. i386 + allyes > 2.

Re: [PATCH] drivers: power: fix typo in documentation

On Tuesday, December 29, 2015 05:43:33 PM Pavel Machek wrote: > On Tue 2015-12-29 11:03:21, Manuel Pégourié-Gonnard wrote: > > The documentation for detach() said attach. > > > > Signed-off-by: Manuel Pégourié-Gonnard > > Cc: triv...@kernel.org > > Acked-by: Pavel Machek

Re: [PATCH] cpufreq: governor: Fix negative idle_time when configured with CONFIG_HZ_PERIODIC

On Wednesday, December 16, 2015 12:20:29 PM Chen Yu wrote: > It is reported that, with CONFIG_HZ_PERIODIC=y cpu stays at the > lowest frequency even if the usage goes to 100%, neither ondemand > nor conservative governor works, however performance and > userspace work as expected. If set with

Re: [PATCH 2/2] blackfin-cpufreq: Mark cpu_set_cclk() as static

On Tuesday, December 22, 2015 11:05:43 AM Viresh Kumar wrote: > On 21-12-15, 22:32, SF Markus Elfring wrote: > > From: Markus Elfring > > Date: Mon, 21 Dec 2015 22:12:26 +0100 > > > > The cpu_set_cclk() function was only used in a single source file so far. > >

Re: Nokia N900: Proper C-states

On 01/02/2016 03:26 PM, Pali Rohár wrote: Hello, due to this Daniel Lezcano commit (ARM: OMAP3: cpuidle - remove rx51 cpuidle parameters table) https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=231900afba52d6faddfb480cde4132d4edc089bc we need patch cpuidle34xx.c code

Re: [PATCH 1/2] mmc: omap_hsmmc: Add support for slot-name property in DT

On Saturday 02 January 2016 23:57:47 Arnd Bergmann wrote: > On Saturday 02 January 2016 16:22:03 Pali Rohár wrote: > > On Monday 28 December 2015 15:55:28 Arnd Bergmann wrote: > > > On Monday 28 December 2015 15:54:35 Pali Rohár wrote: > > > > > I mean you can add the platform data to the > > > >

Re: [PATCH] Staging: speakup: Fix getting port information

cov...@ccs.covici.com, on Sat 02 Jan 2016 19:10:36 -0500, wrote: > I had a patch which also worked, but yours may be better -- I enclose it > here for your information. Well, it's not up to serialio.h to include things for serialio.c. That however makes me realize that the culprit is actually

[PATCH] ACPICA: Drop Linux-specific waking vector functions

From: Rafael J. Wysocki Commit f06147f9fbf1 (ACPICA: Hardware: Enable firmware waking vector for both 32-bit and 64-bit FACS) added three functions that aren't present in upstream ACPICA, acpi_hw_set_firmware_waking_vectors(), acpi_set_firmware_waking_vectors() and

Re: [PATCH 1/2] mmc: omap_hsmmc: Add support for slot-name property in DT

On Sunday 03 January 2016 00:03:54 Pali Rohár wrote: > On Saturday 02 January 2016 23:57:47 Arnd Bergmann wrote: > > On Saturday 02 January 2016 16:22:03 Pali Rohár wrote: > > > On Monday 28 December 2015 15:55:28 Arnd Bergmann wrote: > > > > On Monday 28 December 2015 15:54:35 Pali Rohár wrote: >

[PATCH] Staging: speakup: Fix getting port information

5e6dc54 broke the port information in the speakup driver: SERIAL_PORT_DFNS only gets defined if asm/serial.h is included. Along the way, make sure that we do have information for the requested serial port number (index) Signed-off-by: Samuel Thibault ---

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Re: [PATCH v4 0/3] Add AMBA bus probing support to ACPI

On Wednesday, December 23, 2015 05:19:39 PM Aleksey Makarov wrote: > As discussed when Shannon Zhao sent a patch to add platform_device support > to pl061 driver. Russel and other maintainers prefered that ACPI learned > how to create AMBA devices rather than converting/adding platform_device >

Re: [PATCH v2] crypto: algif_skcipher - Require setkey before accept(2)

On Sat, Jan 02, 2016 at 09:18:30PM +0100, Milan Broz wrote: > > But I cannot change thousands of cryptsetup installations that are actively > using that code. > This is clear userspace breakage which should not happen this way. I'll try to add some compatibility code for your case, assuming your

Re: [PATCH] Staging: speakup: Fix getting port information

Well, OK with me, I will use yours instead because I don't know if they will backport the thing, thanks so much for doing this. Samuel Thibault wrote: > cov...@ccs.covici.com, on Sat 02 Jan 2016 19:10:36 -0500, wrote: > > I had a patch which also worked, but yours

Re: [PATCH 2/2] net-qmi_wwan: Delete an unnecessary variable initialisation in qmi_wwan_register_subdriver()

From: Bjørn Mork Date: Sat, 02 Jan 2016 22:30:48 +0100 > SF Markus Elfring writes: > >> From: Markus Elfring >> Date: Fri, 1 Jan 2016 17:35:03 +0100 >> >> Omit explicit initialisation at the beginning for one local

Re: [PATCH] staging: most: add __iomem for io_base and registers

On Saturday 02 Jan 2016 20:33:23 (+), Al Viro wrote: > On Sat, Jan 02, 2016 at 08:30:21PM +, Hugo Camboulive wrote: > > This removes a few Sparse warnings. > > > + g.dim2 = (struct dim2_regs __iomem *)dim_base_address; > > > -u8 dim_startup(void *dim_base_address, u32 mlb_clock); > >

Re: [PATCH 2/2] net-qmi_wwan: Delete an unnecessary variable initialisation in qmi_wwan_register_subdriver()

SF Markus Elfring writes: > From: Markus Elfring > Date: Fri, 1 Jan 2016 17:35:03 +0100 > > Omit explicit initialisation at the beginning for one local variable > that is redefined before its first use. This patch is unnecessary.

[PATCH] fs: xattr: Use kvfree()

... instead of open coding it. Signed-off-by: Richard Weinberger --- fs/xattr.c | 38 ++ 1 file changed, 14 insertions(+), 24 deletions(-) diff --git a/fs/xattr.c b/fs/xattr.c index 9b932b9..9e8a652 100644 --- a/fs/xattr.c +++ b/fs/xattr.c @@

[PATCH] ubifs: Fix error codes in ubifs_iget()

We cannot use positive error codes in ERR_PTR(). IS_ERR() won't catch them. Cc: sta...@vger.kernel.org Signed-off-by: Richard Weinberger --- fs/ubifs/super.c | 12 ++-- 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c

Re: [PATCH V16 11/11] x86,cgroup/intel_rdt : Add a cgroup interface to manage Intel cache allocation

On Mon, Dec 21, 2015 at 6:05 PM, Marcelo Tosatti wrote: > OK cool hopefully that makes it clear to Fenghua Yu what must > be changed in the patchset. > >> - http://lkml.iu.edu/hypermail/linux/kernel/1511.0/02375.html ...beating a dead horse but this patch is in -next and

[PATCH 3/3] Revert "f2fs: check the node block address of newly allocated nid"

Original issue is fixed by: f2fs: cover more area with nat_tree_lock This reverts commit 24928634f81b1592e83b37dcd89ed45c28f12feb. --- fs/f2fs/node.c | 9 - 1 file changed, 9 deletions(-) diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index 4dab09f..6d5f548 100644 --- a/fs/f2fs/node.c

[PATCH 2/3] f2fs: cover more area with nat_tree_lock

There was a subtle bug on nat cache management which incurs wrong nid allocation or wrong block addresses when try_to_free_nats is triggered heavily. This patch enlarges the previous coverage of nat_tree_lock to avoid data race. Signed-off-by: Jaegeuk Kim --- fs/f2fs/node.c

[PATCH 1/3] f2fs: check the page status filled from disk

After reading a page, we need to check whether there is any error. Signed-off-by: Jaegeuk Kim --- fs/f2fs/data.c | 8 1 file changed, 8 insertions(+) diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 89a978c..11b2111 100644 --- a/fs/f2fs/data.c +++

Re: Nokia N900: Adjust MPU OPP values

On 01/02/2016 11:16 AM, Tony Lindgren wrote: > * Pali Rohár [160102 06:31]: >> Hello, >> >> MPU OPP table table (omap36xx_vddcore_volt_data) defined in >> opp3xxx_data.c does not match Nokia N900 phone. For a long time we have >> dirty patch in linux-n900 tree for it, see:

Re: Nokia N900: twl4030-power different data in DTS and board code

On Saturday 02 January 2016 18:14:31 Tony Lindgren wrote: > * Pali Rohár [160102 06:14]: > > Hello, > > > > now I'm looking at differences between legacy board code and DTS > > file for Nokia N900 and I see some inconsistency for twl4030-power > > driver. > > > > In board

Re: cgroup: BUG: unable to handle kernel NULL pointer dereference

Serge, On Sat, Jan 02, 2016 at 12:24:16PM -0600, Serge E. Hallyn wrote: [...] > > Tried to reproduce with setting CONFIG_CFQ_GROUP_IOSCHED=y, but did not > succeed. Could you send me the .config? Also, if someone could send > the objdump -d output that might help. Though really, it seems

Re: [PATCH 0/5] xen-netback: Fine-tuning for three function implementations

On Sat, 2016-01-02 at 18:50 +0100, SF Markus Elfring wrote: > A few update suggestions were taken into account > from static source code analysis. While static analysis can be useful, I don't think these specific conversions are generally useful. Perhaps it would be more useful to convert the

Re: [PATCH] Input: i8042 add Fujitsu Lifebook U745 to the nomux list

On Wed, Dec 30, 2015 at 01:14:23AM +0100, Aurélien Francillon wrote: > Without i8042.nomux=1 the Elantech touch pad is not working at all on > a Fujitsu Lifebook U745. This patch does not seem necessary for all > U745 (maybe because of different BIOS versions?). However, it was > verified that the

[PATCH v4 42/78] ncr5380: Replace READ_OVERRUNS macro with FLAG_NO_DMA_FIXUPS

The workarounds for chip errata appear twice, in slightly different forms. One is used when defined(REAL_DMA) || defined(REAL_DMA_POLL), the other when defined(PSEUDO_DMA). In the PDMA case, the workarounds have been made conditional on FLAG_NO_DMA_FIXUPS. Do the same for the DMA case, to

[PATCH v4 56/78] ncr5380: Remove redundant volatile qualifiers

The hostdata struct is now protected by a spin lock so the volatile qualifiers are redundant. Remove them. Signed-off-by: Finn Thain Reviewed-by: Hannes Reinecke Tested-by: Ondrej Zary Tested-by: Michael Schmitz

[PATCH v4 39/78] ncr5380: Standardize interrupt handling

Because interrupt handling is crucial to the core driver(s), all wrapper drivers need to agree on this code. This patch removes discrepancies. NCR5380_intr() in NCR5380.c has the following pointless loop that differs from the code in atari_NCR5380.c. done = 1; do {

[PATCH v4 33/78] atari_NCR5380: Set do_abort() timeouts

Use timeouts in do_abort() in atari_NCR5380.c instead of infinite loops. Also fix the kernel-doc comment. Keep the two core driver forks in sync. Signed-off-by: Finn Thain Reviewed-by: Hannes Reinecke Tested-by: Ondrej Zary

[PATCH v4 08/78] ncr5380: Move NCR53C400-specific code

Move board-specific code like this, NCR5380_write(C400_CONTROL_STATUS_REG, CSR_BASE); from the core driver to the board driver. Eliminate the NCR53C400 macro from the core driver. Removal of all macros like this one will be necessary in order to have one core driver that can support all

[PATCH v4 06/78] ncr5380: Remove NCR5380_instance_name macro

This macro makes the code cryptic. Remove it. Signed-off-by: Finn Thain Reviewed-by: Hannes Reinecke Tested-by: Ondrej Zary --- drivers/scsi/NCR5380.c |2 +- drivers/scsi/g_NCR5380.c |7 ---

[PATCH v4 50/78] ncr5380: Change instance->host_lock to hostdata->lock

NCR5380.c presently uses the instance->host_lock spin lock. Convert this to a new spin lock that protects the NCR5380_hostdata struct. atari_NCR5380.c previously used local_irq_save/restore() rather than a spin lock. Convert this to hostdata->lock in irq mode. For SMP platforms, the interrupt

[PATCH v4 40/78] ncr5380: Introduce NCR5380_poll_politely2

SCSI bus protocol sometimes requires monitoring two related conditions simultaneously. Enhance NCR5380_poll_politely() for this purpose, and put it to use in the arbitration algorithm. It will also find use in pseudo DMA. Signed-off-by: Finn Thain Reviewed-by: Hannes

[PATCH v4 41/78] ncr5380: Replace redundant flags with FLAG_NO_DMA_FIXUP

The flags DMA_WORKS_RIGHT, FLAG_NCR53C400 and FLAG_HAS_LAST_BYTE_SENT all mean the same thing, i.e. the chip is not a 538[01]. (More recent devices such as the 53C80 have a 'Last Byte Sent' bit in the Target Command Register as well as other fixes for End-of-DMA errata.) These flags have no

[PATCH v4 44/78] ncr5380: Fix off-by-one bug in extended_msg[] bounds check

Fix the array bounds check when transferring an extended message from the target. Signed-off-by: Finn Thain Reviewed-by: Hannes Reinecke Tested-by: Ondrej Zary Tested-by: Michael Schmitz ---

[PATCH v4 43/78] ncr5380: Standardize reselection handling

Bring the two NCR5380_reselect() implementations into agreement. Replace infinite loops in atari_NCR5380.c with timeouts, as per NCR5380.c. Remove 'abort' flag in NCR5380.c as per atari_NCR5380.c -- if reselection fails, there may be no MESSAGE IN phase so don't attempt data transfer. During

[PATCH v4 32/78] ncr5380: Fix bus phase in do_abort()

NCR5380_poll_politely() returns either 0 (success) or -ETIMEDOUT. However, in do_abort(), the return value is incorrectly taken to be the status register value. This means that the bus is put into DATA OUT phase instead of MESSAGE OUT. Fix this. Signed-off-by: Finn Thain

[PATCH v4 34/78] atari_NCR5380: Use arbitration timeout

Allow target selection to fail with a timeout instead of waiting in infinite loops. This gets rid of the unused NCR_TIMEOUT macro, it is more defensive and has proved helpful in debugging. Signed-off-by: Finn Thain Reviewed-by: Hannes Reinecke

[PATCH v4 46/78] ncr5380: Fix NDEBUG_NO_DATAOUT flag

NDEBUG_NO_DATAOUT should not disable DATA IN phases too. Fix this. (This bug has long been fixed in atari_NCR5380.c.) Signed-off-by: Finn Thain Tested-by: Ondrej Zary Reviewed-by: Hannes Reinecke ---

[PATCH v4 45/78] ncr5380: Cleanup #include directives

Remove unused includes (stat.h, signal.h, proc_fs.h) and move includes needed by the core drivers into the common header (delay.h etc). Signed-off-by: Finn Thain Reviewed-by: Hannes Reinecke Tested-by: Ondrej Zary

[PATCH v4 37/78] ncr5380: Standardize work queueing algorithm

The complex main_running/queue_main mechanism is peculiar to atari_NCR5380.c. It isn't SMP safe and offers little value given that the work queue already offers concurrency management. Remove this complexity to bring atari_NCR5380.c closer to NCR5380.c. It is not a good idea to call the

[PATCH v4 35/78] ncr5380: Dont wait for BUS FREE after disconnect

When there is a queued command and no connected command, NCR5380_select() is called and arbitration begins. The chip waits for BUS FREE once the MR_ARBITRATE bit in the mode register is enabled. That means there is no need to wait for BUS FREE after disconnecting. There is presently no polling

[PATCH v4 38/78] ncr5380: Remove UNSAFE macro

Configuring core drivers using macros like this one prevents re-unifying the core driver forks, and prevents implementing the core driver as a library or a platform driver. The UNSAFE macro in particular is a poor workaround for the problem of interrupt latency. Releasing the locks complicates

[PATCH v4 13/78] ncr5380: Remove redundant register writes

Remove the duplicate write to the Select Enable Register that appeared in v1.1.38. Also remove the redundant write to Initiator Command Register prior to calling do_abort(). Signed-off-by: Finn Thain Reviewed-by: Hannes Reinecke Tested-by: Ondrej Zary

[PATCH v4 04/78] ncr5380: Remove more pointless macros

ASM macro is never defined. rtrc in pas16.c is not used. NCR5380_map_config, do_NCR5380_intr, do_t128_intr and do_pas16_intr are unused. NCR_NOT_SET harms readability. Remove them. Signed-off-by: Finn Thain Reviewed-by: Hannes Reinecke Tested-by:

[PATCH v4 02/78] ncr5380: Remove redundant static variable initializers

Signed-off-by: Finn Thain Reviewed-by: Hannes Reinecke Tested-by: Ondrej Zary --- drivers/scsi/NCR5380.c |2 +- drivers/scsi/dtc.c |4 ++-- drivers/scsi/g_NCR5380.c |4 ++-- drivers/scsi/pas16.c |

[PATCH v4 14/78] ncr5380: Use return instead of goto in NCR5380_select()

The "failed" label in NCR5380_select() is not helpful. Some failures return 0, others -1. Use return instead of goto to improve clarity and brevity, like atari_NCR5380.c does. Fix the relevant comments. Signed-off-by: Finn Thain Reviewed-by: Hannes Reinecke

[PATCH v4 16/78] ncr5380: Proceed with next command after NCR5380_select() calls scsi_done

If a target disappears from the SCSI bus, NCR5380_select() may subsequently fail with a time-out. In this situation, scsi_done is called and NCR5380_select() returns 0. Both hostdata->connected and hostdata->selecting are NULL and the main loop should proceed with the next command in the issue

[PATCH v4 01/78] atari_scsi: Fix SCSI host ID setting

The NVRAM location of this byte is 16, as documented in http://toshyp.atari.org/en/004009.html This was confirmed by Michael Schmitz, by setting the SCSI host ID under EmuTOS and then checking the value in /proc/driver/nvram and /dev/nvram under Linux. Signed-off-by: Finn Thain

Re: [PATCH 00/42] ACPICA: 20151218 Release

what is ACPICA and why should we care about divergence between it and the linux upstream? Where is it to be found? This may be common knowlege to many people, but it should probably be documented in the patch bundle and it's explination. David Lang On Tue, 29 Dec 2015, Lv Zheng wrote:

[PATCH] igb: constify e1000_phy_operations structure

This e1000_phy_operations structure is never modified, so declare it as const. Other structures of this type are already const. Done with the help of Coccinelle. Signed-off-by: Julia Lawall --- drivers/net/ethernet/intel/igb/e1000_82575.c |2 +-

__vmalloc() vs. GFP_NOIO/GFP_NOFS

While trying to write documentation on allocator choice, I've run into something odd: /* * __vmalloc() will allocate data pages and auxillary structures (e.g. * pagetables) with GFP_KERNEL, yet we may be under GFP_NOFS context * here. Hence we need to

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