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2018-06-19input: atmel_mxt_ts: support reset gpio lineDominik Sliwa
Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> (cherry picked from commit 22a2065b9a3fa6ad458e3100b66c4acaa05f2466) Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2017-12-21crypto: Add a flag to identify crypto instancesSteffen Klassert
The upcomming crypto user configuration api needs to identify crypto instances. This patch adds a flag that is set if the algorithm is an instance that is build from templates. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> (cherry picked from commit 64a947b1337b93061da7c7af1f6ce6b2431b70ae) Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2017-12-21crypto: Add userspace report for cipher type algorithmsSteffen Klassert
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> (cherry picked from commit 07a5fa4abd8b6965d4585d3b110f89bdf5612aff) Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2017-12-21crypto: Add userspace report for rng type algorithmsSteffen Klassert
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> (cherry picked from commit 792608e9c215141fa4b870b7b2a23767a1ef12f4) Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2017-12-21crypto: Add userspace report for pcompress type algorithmsSteffen Klassert
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> (cherry picked from commit a55465dca7befd31f4ffa54508d4e2d1e701b8dc) Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2017-12-21crypto: Add userspace report for aead type algorithmsSteffen Klassert
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> (cherry picked from commit 6ad414fe710d4fd3a8c8c6c2ad8fefcfcc207968) Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2017-12-21crypto: Add userspace report for blkcipher type algorithmsSteffen Klassert
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> (cherry picked from commit 50496a1fab6c6a90b77da4b247321a88e632bd46) Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2017-12-21crypto: Add userspace report for shash type algorithmsSteffen Klassert
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> (cherry picked from commit f4d663ce6357e533f107ce3789bd8848c94bea81) Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2017-12-21crypto: Add userspace report for larval type algorithmsSteffen Klassert
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> (cherry picked from commit 6c5a86f529a9e9ca4c9aca5fa477e9557d4a3d3d) Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2017-12-21crypto: Add userspace configuration APISteffen Klassert
This patch adds a basic userspace configuration API for the crypto layer. With this it is possible to instantiate, remove and to show crypto algorithms from userspace. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> (cherry picked from commit a38f7907b926e4c6c7d389ad96cc38cec2e5a9e9) Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2017-09-26input: atmel_mxt_ts driver updateNick Dyer
Update mxt driver to upstream version. Signed-off-by: Bhuvanchandra DV <bhuvanchandra.dv@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2017-03-31drivers/base: add bus for System-on-Chip devicesLee Jones
Traditionally, any System-on-Chip based platform creates a flat list of platform_devices directly under /sys/devices/platform. In order to give these some better structure, this introduces a new bus type for soc_devices that are registered with the new soc_device_register() function. All devices that are on the same chip should then be registered as child devices of the soc device. The soc bus also exports a few standardised device attributes which allow user space to query the specific type of soc. Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> (cherry picked from commit 74d1d82cdaaec727f5072eb1c9f49b7e920e076f)
2017-03-31mmc: core: add eMMC hardware reset supportAdrian Hunter
eMMC's may have a hardware reset line. This patch provides a host controller operation to implement hardware reset and a function to reset and reinitialize the card. Also, for MMC, the reset is always performed before initialization. The host must set the new host capability MMC_CAP_HW_RESET to enable hardware reset. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Chris Ball <cjb@laptop.org> (cherry picked from commit b2499518b5ad7e28bb3ed348fd3f370eeb1e36c0)
2016-09-29compiler-gcc: disable -ftracer for __noclone functionsPaolo Bonzini
commit 95272c29378ee7dc15f43fa2758cb28a5913a06d upstream. -ftracer can duplicate asm blocks causing compilation to fail in noclone functions. For example, KVM declares a global variable in an asm like asm("2: ... \n .pushsection data \n .global vmx_return \n vmx_return: .long 2b"); and -ftracer causes a double declaration. Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Michal Marek <mmarek@suse.cz> Cc: stable@vger.kernel.org Cc: kvm@vger.kernel.org Reported-by: Linda Walsh <lkml@tlinx.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Willy Tarreau <w@1wt.eu> (cherry picked from commit 5d814ad8d35e5e23e0c27fb0f0b80c1044ecefad)
2016-09-29compiler-gcc: integrate the various compiler-gcc[345].h filesJoe Perches
commit cb984d101b30eb7478d32df56a0023e4603cba7f upstream. As gcc major version numbers are going to advance rather rapidly in the future, there's no real value in separate files for each compiler version. Deduplicate some of the macros #defined in each file too. Neaten comments using normal kernel commenting style. Signed-off-by: Joe Perches <joe@perches.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Michal Marek <mmarek@suse.cz> Cc: Segher Boessenkool <segher@kernel.crashing.org> Cc: Sasha Levin <levinsasha928@gmail.com> Cc: Anton Blanchard <anton@samba.org> Cc: Alan Modra <amodra@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> [ philm: backport to 3.10-stable ] Signed-off-by: Philip Müller <philm@manjaro.org> Signed-off-by: Willy Tarreau <w@1wt.eu> (cherry picked from commit a4a4f1cd733fe5b345db4e8cc19bb8868d562a8a)
2016-09-29compiler-gcc.h: Add gcc-recommended GCC_VERSION macroDaniel Santos
Throughout compiler*.h, many version checks are made. These can be simplified by using the macro that gcc's documentation recommends. However, my primary reason for adding this is that I need bug-check macros that are enabled at certain gcc versions and it's cleaner to use this macro than the tradition method: #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ => 2) If you add patch level, it gets this ugly: #if __GNUC__ > 4 || (__GNUC__ == 4 && (__GNUC_MINOR__ > 2 || \ __GNUC_MINOR__ == 2 __GNUC_PATCHLEVEL__ >= 1)) As opposed to: #if GCC_VERSION >= 40201 While having separate headers for gcc 3 & 4 eliminates some of this verbosity, they can still be cleaned up by this. See also: http://gcc.gnu.org/onlinedocs/cpp/Common-Predefined-Macros.html Signed-off-by: Daniel Santos <daniel.santos@pobox.com> Acked-by: Borislav Petkov <bp@alien8.de> Acked-by: David Rientjes <rientjes@google.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Joe Perches <joe@perches.com> Cc: Josh Triplett <josh@joshtriplett.org> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> (cherry picked from commit 3f3f8d2f48acfd8ed3b8e6b7377935da57b27b16)
2016-09-29ftrace: Make all inline tags also include notraceSteven Rostedt
Commit 5963e317b1e9d2a ("ftrace/x86: Do not change stacks in DEBUG when calling lockdep") prevented lockdep calls from the int3 breakpoint handler from reseting the stack if a function that was called was in the process of being converted for tracing and had a breakpoint on it. The idea is, before calling the lockdep code, do a load_idt() to the special IDT that kept the breakpoint stack from reseting. This worked well as a quick fix for this kernel release, until a certain config caused a lockup in the function tracer start up tests. Investigating it, I found that the load_idt that was used to prevent the int3 from changing stacks was itself being traced! Even though the config had CONFIG_OPTIMIZE_INLINING disabled, and all 'inline' tags were set to always inline, there were still cases that it did not inline! This was caused by CONFIG_PARAVIRT_GUEST, where it would add a pointer to the native_load_idt() which made that function to be traced. Commit 45959ee7aa645815a ("ftrace: Do not function trace inlined functions") only touched the 'inline' tags when CONFIG_OPMITIZE_INLINING was enabled. PARAVIRT_GUEST shows that this was not enough and we need to also mark always_inline with notrace as well. Reported-by: Fengguang Wu <wfg@linux.intel.com> Tested-by: Fengguang Wu <wfg@linux.intel.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> (cherry picked from commit 93b3cca1ccd30b1ad290951a3fc7c10c73db7313)
2016-09-29ftrace: Do not function trace inlined functionsSteven Rostedt
When gcc inlines a function, it does not mark it with the mcount prologue, which in turn means that inlined functions are not traced by the function tracer. But if CONFIG_OPTIMIZE_INLINING is set, then gcc is allowed not to inline a function that is marked inline. Depending on the options and the compiler, a function may or may not be traced by the function tracer, depending on whether gcc decides to inline a function or not. This has caused several problems in the pass becaues gcc is not always consistent with what it decides to inline between different gcc versions. Some places should not be traced (like paravirt native_* functions) and these are mostly marked as inline. When gcc decides not to inline the function, and if that function should not be traced, then the ftrace function tracer will suddenly break when it use to work fine. This becomes even harder to debug when different versions of gcc will not inline that function, making the same kernel and config work for some gcc versions and not work for others. By making all functions marked inline to not be traced will remove the ambiguity that gcc adds when it comes to tracing functions marked inline. All gcc versions will be consistent with what functions are traced and having volatile working code will be removed. Note, only the inline macro when CONFIG_OPTIMIZE_INLINING is set needs to have notrace added, as the attribute __always_inline will force the function to be inlined and then not traced. Signed-off-by: Steven Rostedt <rostedt@goodmis.org> (cherry picked from commit 45959ee7aa645815a5ce303a0ea1e48a21e67c6a)
2016-03-21kernel: add support for gcc 5Sasha Levin
We're missing include/linux/compiler-gcc5.h which is required now because gcc branched off to v5 in trunk. Just copy the relevant bits out of include/linux/compiler-gcc4.h, no new code is added as of now. This fixes a build error when using gcc 5. Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> (cherry picked from commit 71458cfc782eafe4b27656e078d379a34e472adf)
2016-03-21bcma: use static keyword for inline function declaration in bcma.hArend van Spriel
Just scratching an itch here, but it makes more sense to use the static keyword if you think about how the compiler treats inline functions. Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Reviewed-by: Alwin Beukers <alwin@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: Franky Lin <frankyl@broadcom.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> (cherry picked from commit 084455524f0d46dd210b4397898aff73579b97e8)
2015-10-14mmc: core: Disable HPI for certain Hynix eMMC cardsMarcel Ziswiler
Certain Hynix eMMC 4.41 cards might get broken when HPI feature is used and hence this patch disables the HPI feature for such buggy cards. As some of the other features like BKOPs/Cache/Sanitize are dependent on HPI feature, those features would also get disabled if HPI is disabled. Change-Id: I6a638ce089cbd977122e47aecb721bc3f0adf7b0 Signed-off-by: Pratibhasagar V <pratibha@codeaurora.org> Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org> Fix ported from the following Android MSM kernel commit: https://www.codeaurora.org/cgit/quic/la/kernel/msm/commit/?id=84af3731019921a28d595dbf6cbf00539706a42c
2015-10-11mmc: sdhci: handle busy-end interrupt during commandChanho Min
It is fully legal for a controller to start handling busy-end interrupt before it has signaled that the command has completed. So make sure we do things in the proper order, Or it results that command interrupt is ignored so it can cause unexpected operations. This is founded at some toshiba emmc with the bellow warning. "mmc0: Got command interrupt 0x00000001 even though no command operation was in progress." This issue has been also reported by Youssef TRIKI: It is not specific to Toshiba devices, and happens with eMMC devices as well as SD card which support Auto-CMD12 rather than CMD23. Also, similar patch is submitted by: Gwendal Grignou <gwendal@chromium.org> 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 <hankyung.yu@lge.com> Signed-off-by: Chanho Min <chanho.min@lge.com> Tested-by: Youssef TRIKI <youssef.triki@st.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> (cherry picked from commit e99783a45220a2c5f5a598e0e81213ecf2dbcf2f)
2015-10-09mmc: sdhci-pci: add runtime pm supportAdrian Hunter
Ths patch allows runtime PM for sdhci-pci, runtime suspending after inactivity of 50ms and ensuring runtime resume before SDHC registers are accessed. During runtime suspend, interrupts are masked. The host controller state is restored at runtime resume. For Medfield, the host controller's card detect mechanism is supplanted by an always-on GPIO which provides for card detect wake-up. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Chris Ball <cjb@laptop.org> (cherry picked from commit 66fd8ad5100b5003046aa744a4f12fa31bb831f9)
2015-03-30Merge remote-tracking branch 'remotes/ubifs-v3.1/master' into tegra-nand-nextMarcel Ziswiler
Conflicts: drivers/mtd/ubi/ubi.h drivers/mtd/ubi/wl.c
2015-02-03mmc: core: new discard feature support at Samsung eMMC v4.41+.singhome_lee
Support discard feature if MID field in the CID register is 0x15, EXT.CSD[192] (device version) is 5 and Bit 0 in the EXT.CSD[64] is 1. Also removed REQ_SECURE flag check to avoid kernel hang. This patch is released from samsung. Change-Id: I4023a900680e9bca10c40311b09ed077a22617db (cherry picked from commit 4acc227edfb631d377e14911287c1b73682fc9c2) Conflicts: drivers/mmc/card/block.c
2015-02-03eMMC: Add Product revision, Sector count and driver init logban_feng
Change-Id: I89b544afbb0a109a222621a9948399fba8f77693 Change-Id: Ie366a152100a478e7811b4395f3fae9794bb1386 Reviewed-on: http://mcrd1-5.corpnet.asus/code-review/master/45221 Reviewed-by: Ban Feng <Ban_Feng@asus.com> Tested-by: Ban Feng <Ban_Feng@asus.com> Reviewed-by: Sam hblee <Sam_hblee@asus.com> Conflicts: drivers/mmc/core/mmc.c include/linux/mmc/card.h asdf
2015-01-16Merge remote-tracking branch 'remotes/nvidia/l4t/l4t-r16-r2' into tegra-nextMarcel Ziswiler
(tegra-l4t-r16-16.5) Conflicts: drivers/media/video/tegra_v4l2_camera.c drivers/mmc/host/sdhci.c drivers/watchdog/tegra_wdt.c include/media/tegra_v4l2_camera.h
2014-07-31video: tegra: nvhost: validate nvmap_handle_refBibek Basu
nvhost_job_unpin should always get the nvmap_handle_ref from rb_entry after validating handle and presence in the tree. Bug 1478467 Change-Id: Ibf5f64a1a82fea8adbf7500bdb36b76357776448 Signed-off-by: Bibek Basu <bbasu@nvidia.com> Reviewed-on: http://git-master/r/436076 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Venkat Moganty <vmoganty@nvidia.com> Reviewed-by: Matthew Pedro <mapedro@nvidia.com>
2014-05-28mmc: sdhci: add quirk for lack of 1.8v supportJeetesh Burman
The OLPC XO-1.75 laptop includes a SDHCI controller which is 1.8v capable, and it truthfully reports so in its capabilities. This alternate voltage is used for driving new "UHS-I" SD cards at their full speed. However, what the controller doesn't know is that the motherboard physically doesn't have a 1.8v supply available. Add a quirk so that systems such as this one can override disable 1.8v support, adding support for UHS-I cards (by running them at 3.3v). This avoids a problem where the system would first try to run the card at 1.8v, fail, and then not be able to fully reset the card to retry at the normal 3.3v voltage. This is more appropriate than using the MISSING_CAPS quirk, which is intended for cases where the SDHCI controller is actually lying about its capabilities, and would force us to somehow override both caps words from another source. Bug 1402031 Change-Id: I7ca070a13241e6403eb2e243ebbc441a311110bc Signed-off-by: Daniel Drake <dsd@laptop.org> Reviewed-by: Philip Rakity <prakity@nvidia.com> Signed-off-by: Chris Ball <cjb@laptop.org> Signed-off-by: Jeetesh Burman <jburman@nvidia.com> Reviewed-on: http://git-master/r/346323 Reviewed-by: Matthew Pedro <mapedro@nvidia.com> Tested-by: Matthew Pedro <mapedro@nvidia.com>
2014-03-31ptp: Add a method for obtaining the device index.Richard Cochran
This commit adds a method that MAC drivers may call in order to find out the device number of their associated PTP Hardware Clock. Signed-off-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-31ethtool: Introduce a method for getting time stamping capabilities.Richard Cochran
This commit adds a new ethtool ioctl that exposes the SO_TIMESTAMPING capabilities of a network interface. In addition, user space programs can use this ioctl to discover the PTP Hardware Clock (PHC) device associated with the interface. Since software receive time stamps are handled by the stack, the generic ethtool code can answer the query correctly in case the MAC or PHY drivers lack special time stamping features. Signed-off-by: Richard Cochran <richardcochran@gmail.com> Reviewed-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-31ethtool: Centralise validation of ETHTOOL_{G, S}RXFHINDIR parametersBen Hutchings
Add a new ethtool operation (get_rxfh_indir_size) to get the indirectional table size. Use this to validate the user buffer size before calling get_rxfh_indir or set_rxfh_indir. Use get_rxnfc to get the number of RX rings, and validate the contents of the new indirection table before calling set_rxfh_indir. Remove this validation from drivers. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Acked-by: Dimitris Michailidis <dm@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-29input: touchscreen: added platform data for Fusion touchscreenStefan Agner
Added platform data struct to define interrupt and reset GPIO. This allows to initialize the touchscreen controller inside the driver rather then in each platform and use the driver as a module.
2013-12-09mfd: stmpe: add ADC block resourcesStefan Agner
In order to use the auxiliar ADC inputs of STMPE811 devices we need to add resources for the ADC block. Also move the ADC macros from the touchscreen driver to the general header file. We will need them for the ADC driver in future.
2013-06-24hwmon: lm95245: add local critical shutdown temp hookMax Krummenacher
export access to the 'Local Shared OS and T_Crit Limit' register.
2013-04-18mmc: sdhci: add quirk for lack of 1.8v supportDaniel Drake
The OLPC XO-1.75 laptop includes a SDHCI controller which is 1.8v capable, and it truthfully reports so in its capabilities. This alternate voltage is used for driving new "UHS-I" SD cards at their full speed. However, what the controller doesn't know is that the motherboard physically doesn't have a 1.8v supply available. Add a quirk so that systems such as this one can override disable 1.8v support, adding support for UHS-I cards (by running them at 3.3v). This avoids a problem where the system would first try to run the card at 1.8v, fail, and then not be able to fully reset the card to retry at the normal 3.3v voltage. This is more appropriate than using the MISSING_CAPS quirk, which is intended for cases where the SDHCI controller is actually lying about its capabilities, and would force us to somehow override both caps words from another source. Signed-off-by: Daniel Drake <dsd@laptop.org> Reviewed-by: Philip Rakity <prakity@nvidia.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-03-05tegra: Make tegra_vi01_device accessibleAndrew Chew
Make it accessible outside of drivers/video/tegra. V4L2 driver needs to set some platform_data. Add suport for T20. Change-Id: I98353c2874ea28cfa0a7a5dd8a1dc4c586af4dd7 Signed-off-by: Andrew Chew <achew@nvidia.com> Signed-off-by: Bryan Wu <pengw@nvidia.com> Reviewed-on: http://git-master/r/200220 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Matthew Pedro <mapedro@nvidia.com>
2013-03-03Make it accessible outside of drivers/video/tegra. V4L2 driver needs toAndrew Chew
set some platform_data. Signed-off-by: Andrew Chew <achew@nvidia.com>
2013-03-03Conflicts:Marcel Ziswiler
arch/arm/mach-tegra/common.c drivers/ata/ahci-tegra.c
2013-02-22prandom: introduce prandom_bytes() and prandom_bytes_state()Akinobu Mita
Add functions to get the requested number of pseudo-random bytes. The difference from get_random_bytes() is that it generates pseudo-random numbers by prandom_u32(). It doesn't consume the entropy pool, and the sequence is reproducible if the same rnd_state is used. So it is suitable for generating random bytes for testing. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: "Theodore Ts'o" <tytso@mit.edu> Cc: Artem Bityutskiy <dedekind1@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Eilon Greenstein <eilong@broadcom.com> Cc: David Laight <david.laight@aculab.com> Cc: Michel Lespinasse <walken@google.com> Cc: Robert Love <robert.w.love@intel.com> Cc: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-22random32: rename random32 to prandomAkinobu Mita
This renames all random32 functions to have 'prandom_' prefix as follows: void prandom_seed(u32 seed); /* rename from srandom32() */ u32 prandom_u32(void); /* rename from random32() */ void prandom_seed_state(struct rnd_state *state, u64 seed); /* rename from prandom32_seed() */ u32 prandom_u32_state(struct rnd_state *state); /* rename from prandom32() */ The purpose of this renaming is to prevent some kernel developers from assuming that prandom32() and random32() might imply that only prandom32() was the one using a pseudo-random number generator by prandom32's "p", and the result may be a very embarassing security exposure. This concern was expressed by Theodore Ts'o. And furthermore, I'm going to introduce new functions for getting the requested number of pseudo-random bytes. If I continue to use both prandom32 and random32 prefixes for these functions, the confusion is getting worse. As a result of this renaming, "prandom_" is the common prefix for pseudo-random number library. Currently, srandom32() and random32() are preserved because it is difficult to rename too many users at once. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: "Theodore Ts'o" <tytso@mit.edu> Cc: Robert Love <robert.w.love@intel.com> Cc: Michel Lespinasse <walken@google.com> Cc: Valdis Kletnieks <valdis.kletnieks@vt.edu> Cc: David Laight <david.laight@aculab.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Artem Bityutskiy <dedekind1@gmail.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-01-25fbcon: logo: allow easy integration of a custom Linux boot logoT30_LinuxImageV2.0Beta1_20130314T20_LinuxImageV2.0_20130305T20_LinuxImageV2.0Beta2_20130129Marcel Ziswiler
This patch allows for easy integration of a custom Linux boot logo to replace the Tux' being shown by default. Use gimp or the like to create a raw PPM in your desired resolution. Reduce the number of colours in the image to 224: user@host:~$ ppmquant 224 Toradex-640x480.ppm > \ Toradex-640x480-224.ppm ppmquant: making histogram... ppmquant: 370 colors found ppmquant: choosing 224 colors... ppmquant: mapping image to new colors... Convert it from raw PPM to ASCII format: user@host:~$ pnmnoraw Toradex-640x480-224.ppm > \ Toradex-640x480-ascii-224.ppm Copy it into the Linux sources: cp Toradex-640x480-ascii-224.ppm linux-toradex/drivers/video/logo/\ logo_custom_clut224.ppm Activate exclusively custom Linux logo in the kernel configuration: Device Drivers -> Graphics support -> Bootup logo -> Custom 224-color Linux logo And re-compile the kernel.
2013-01-09hwmon: lm95245: add local temp and remote critical shutdown temp hooksMarcel Ziswiler
In order to allow tighter integration with external thermal throttling code add local temperature and remote critical shutdown temperature hooks. Rename the existing hooks for clarity.
2013-01-07hwmon: lm95245: add probe callback and remote OS hooksMarcel Ziswiler
In order to allow integrating with external thermal throttling code add a probe callback and remote over-temperature shutdown hooks.
2013-01-07hwmon: lm95245: implement remote over-temperature shutdown alarm limitMarcel Ziswiler
In addition to the critical temperature alarm limit this chip features a second alarm limit called remote over-temperature shutdown ROS with a separate pin configurable as trigger output. Implement this feature and add platform data to allow configuring respective pin as output.
2012-12-17tegra: Add nvmap_mark_global()Andrew Chew
Add this function, to be able to set the global field of an nvmap_handle while preserving the nvmap API's encapsulation mechanisms. Change-Id: I62de773a65119722f059b114e2d0e906c7e04e83 Signed-off-by: Andrew Chew <achew@nvidia.com> Signed-off-by: Bryan Wu <pengw@nvidia.com> Reviewed-on: http://git-master/r/169834 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Winnie Hsu <whsu@nvidia.com>
2012-11-12Merge branch 'l4t/l4t-r16-r2' into colibriMarcel Ziswiler
Conflicts: arch/arm/mach-tegra/tegra3_usb_phy.c arch/arm/mach-tegra/usb_phy.c drivers/usb/gadget/tegra_udc.c drivers/usb/otg/Makefile drivers/video/tegra/fb.c sound/soc/tegra/tegra_pcm.c
2012-10-05sched/x86: Fix overflow in cyc2ns_offsetSalman Qazi
Artem: only left the 'mult_frac' addition from this patch, as we need it in ubi. Signed-off-by: Salman Qazi <sqazi@google.com> Acked-by: John Stultz <john.stultz@linaro.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Turner <pjt@google.com> Cc: john stultz <johnstul@us.ibm.com> Link: http://lkml.kernel.org/r/20120310004027.19291.88460.stgit@dungbeetle.mtv.corp.google.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
2012-10-05mtd: mtdparts: introduce mtd_get_device_sizeRichard Genoud
'mtd_get_device_size()' returns the size of the whole MTD device, that is the mtd_info master size. This will be used by UBI to calculate the maximum number of bad blocks (MBB) on a MTD device. Artem: amended the patch a bit. Signed-off-by: Richard Genoud <richard.genoud@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-10-05mtd: mark mtd_is_partition argument as constantRichard Genoud
'struct mtd_info' is not modified by 'mtd_is_partition()' so it can be marked as "const". Signed-off-by: Richard Genoud <richard.genoud@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-11 19:20:22 +0000