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path: root/drivers/char/hw_random
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2009-10-22move virtrng_remove to .devexit.textUwe Kleine-König
The function virtrng_remove is used only wrapped by __devexit_p so define it using __devexit. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Sam Ravnborg <sam@ravnborg.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Michael S. Tsirkin <mst@redhat.com> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Cc: linux-kernel@vger.kernel.org Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2009-10-22virtio: let header files include virtio_ids.hChristian Borntraeger
Rusty, commit 3ca4f5ca73057a617f9444a91022d7127041970a virtio: add virtio IDs file moved all device IDs into a single file. While the change itself is a very good one, it can break userspace applications. For example if a userspace tool wanted to get the ID of virtio_net it used to include virtio_net.h. This does no longer work, since virtio_net.h does not include virtio_ids.h. This patch moves all "#include <linux/virtio_ids.h>" from the C files into the header files, making the header files compatible with the old ones. In addition, this patch exports virtio_ids.h to userspace. CC: Fernando Luis Vazquez Cao <fernando@oss.ntt.co.jp> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2009-09-24omap: rng: Use resource_size instead of manual calculationTobias Klauser
Use the resource_size function instead of manually calculating the resource size. This reduces the chance of introducing off-by-one-errors. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2009-09-23virtio: add virtio IDs fileFernando Luis Vazquez Cao
Virtio IDs are spread all over the tree which makes assigning new IDs bothersome. Putting them together should make the process less error-prone. Signed-off-by: Fernando Luis Vazquez Cao <fernando@oss.ntt.co.jp> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2009-09-23virtio: make add_buf return capacity remainingRusty Russell
This API change means that virtio_net can tell how much capacity remains for buffers. It's necessarily fuzzy, since VIRTIO_RING_F_INDIRECT_DESC means we can fit any number of descriptors in one, *if* we can kmalloc. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Dinesh Subhraveti <dineshs@us.ibm.com>
2009-09-19Driver-Core: extend devnode callbacks to provide permissionsKay Sievers
This allows subsytems to provide devtmpfs with non-default permissions for the device node. Instead of the default mode of 0600, null, zero, random, urandom, full, tty, ptmx now have a mode of 0666, which allows non-privileged processes to access standard device nodes in case no other userspace process applies the expected permissions. This also fixes a wrong assignment in pktcdvd and a checkpatch.pl complain. Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-09-17MIPS: hw_random: Add hardware RNG for Octeon SOCs.David Daney
Signed-off-by: David Daney <ddaney@caviumnetworks.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-11Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (102 commits) crypto: sha-s390 - Fix warnings in import function crypto: vmac - New hash algorithm for intel_txt support crypto: api - Do not displace newly registered algorithms crypto: ansi_cprng - Fix module initialization crypto: xcbc - Fix alignment calculation of xcbc_tfm_ctx crypto: fips - Depend on ansi_cprng crypto: blkcipher - Do not use eseqiv on stream ciphers crypto: ctr - Use chainiv on raw counter mode Revert crypto: fips - Select CPRNG crypto: rng - Fix typo crypto: talitos - add support for 36 bit addressing crypto: talitos - align locks on cache lines crypto: talitos - simplify hmac data size calculation crypto: mv_cesa - Add support for Orion5X crypto engine crypto: cryptd - Add support to access underlaying shash crypto: gcm - Use GHASH digest algorithm crypto: ghash - Add GHASH digest algorithm for GCM crypto: authenc - Convert to ahash crypto: api - Fix aligned ctx helper crypto: hmac - Prehash ipad/opad ...
2009-07-08Remove multiple KERN_ prefixes from printk formatsJoe Perches
Commit 5fd29d6ccbc98884569d6f3105aeca70858b3e0f ("printk: clean up handling of log-levels and newlines") changed printk semantics. printk lines with multiple KERN_<level> prefixes are no longer emitted as before the patch. <level> is now included in the output on each additional use. Remove all uses of multiple KERN_<level>s in formats. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-25hwrng: Use PCI_VDEVICEJoe Perches
Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Matt Mackall <mpm@selenic.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-17MIPS: hwrng: Add TX4939 RNG driverAtsushi Nemoto
This patch adds support for the integrated RNG of the TX4939 SoC. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Acked-by: Matt Mackall <mpm@selenic.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-06-15Driver Core: misc: add nodename support for misc devices.Kay Sievers
This adds support for misc devices to report their requested nodename to userspace. It also updates a number of misc drivers to provide the needed subdirectory and device name to be used for them. Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Jan Blunck <jblunck@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-14Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (417 commits) MAINTAINERS: EB110ATX is not ebsa110 MAINTAINERS: update Eric Miao's email address and status fb: add support of LCD display controller on pxa168/910 (base layer) [ARM] 5552/1: ep93xx get_uart_rate(): use EP93XX_SYSCON_PWRCNT and EP93XX_SYSCON_PWRCN [ARM] pxa/sharpsl_pm: zaurus needs generic pxa suspend/resume routines [ARM] 5544/1: Trust PrimeCell resource sizes [ARM] pxa/sharpsl_pm: cleanup of gpio-related code. [ARM] pxa/sharpsl_pm: drop set_irq_type calls [ARM] pxa/sharpsl_pm: merge pxa-specific code into generic one [ARM] pxa/sharpsl_pm: merge the two sharpsl_pm.c since it's now pxa specific [ARM] sa1100: remove unused collie_pm.c [ARM] pxa: fix the conflicting non-static declarations of global_gpios[] [ARM] 5550/1: Add default configure file for w90p910 platform [ARM] 5549/1: Add clock api for w90p910 platform. [ARM] 5548/1: Add gpio api for w90p910 platform [ARM] 5551/1: Add multi-function pin api for w90p910 platform. [ARM] Make ARM_VIC_NR depend on ARM_VIC [ARM] 5546/1: ARM PL022 SSP/SPI driver v3 ARM: OMAP4: SMP: Update defconfig for OMAP4430 ARM: OMAP4: SMP: Enable SMP support for OMAP4430 ...
2009-06-13Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (35 commits) hwrng: timeriomem - Fix potential oops (request_mem_region/__devinit) crypto: api - Use formatting of module name crypto: testmgr - Allow hash test vectors longer than a page crypto: testmgr - Check all test vector lengths crypto: hifn_795x - fix __dev{init,exit} markings crypto: tcrypt - Do not exit on success in fips mode crypto: compress - Return produced bytes in crypto_{,de}compress_{update,final} hwrng: via_rng - Support VIA Nano hardware RNG on X86_64 builds hwrng: via_rng - Support VIA Nano hardware RNG hwrng: via_rng - The VIA Hardware RNG driver is for the CPU, not Chipset crypto: testmgr - Skip algs not flagged fips_allowed in fips mode crypto: testmgr - Mark algs allowed in fips mode crypto: testmgr - Add ctr(aes) test vectors crypto: testmgr - Dynamically allocate xbuf and axbuf crypto: testmgr - Print self-test pass notices in fips mode crypto: testmgr - Catch base cipher self-test failures in fips mode crypto: testmgr - Add ansi_cprng test vectors crypto: testmgr - Add infrastructure for ansi_cprng self-tests crypto: testmgr - Add self-tests for rfc4309(ccm(aes)) crypto: testmgr - Handle AEAD test vectors expected to fail verification ...
2009-06-12virtio: handle short buffers in virtio_rng.Rusty Russell
If the device fills less than 4 bytes of our random buffer, we'll BUG_ON. It's nicer to handle the case where it partially fills the buffer (the protocol doesn't explicitly bad that). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2009-06-12virtio: find_vqs/del_vqs virtio operationsMichael S. Tsirkin
This replaces find_vq/del_vq with find_vqs/del_vqs virtio operations, and updates all drivers. This is needed for MSI support, because MSI needs to know the total number of vectors upfront. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (+ lguest/9p compile fixes)
2009-06-12virtio: add names to virtqueue struct, mapping from devices to queues.Rusty Russell
Add a linked list of all virtqueues for a virtio device: this helps for debugging and is also needed for upcoming interface change. Also, add a "name" field for clearer debug messages. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2009-06-03hwrng: timeriomem - Fix potential oops (request_mem_region/__devinit)Alexander Clouter
Fixed oops when calling device_unregister followed by device_register (changing __init to __devinit) and removed request_mem_region() as platform_device_register already does this which can result in EBUSY Signed-off-by: Alexander Clouter <alex@digriz.org.uk> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-02hwrng: via_rng - Support VIA Nano hardware RNG on X86_64 buildsHarald Welte
Fix Kconfig to build via-rng.ko on X86_64 builds, as the VIA Nano CPU supports x86_64, too. Signed-off-by: Harald Welte <HaraldWelte@viatech.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-02hwrng: via_rng - Support VIA Nano hardware RNGHarald Welte
The VIA Nano CPU supports the same XSTORE instruction based RNG, but it lacks the MSR present in earlier CPUs. Signed-off-by: Harald Welte <HaraldWelte@viatech.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-02hwrng: via_rng - The VIA Hardware RNG driver is for the CPU, not ChipsetHarald Welte
This is a cosmetic change, fixing the MODULE_DESCRIPTION() of via-rng.c Signed-off-by: Harald Welte <HaraldWelte@viatech.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-02hwrng: omap - Move probe function to .devinit.textUwe Kleine-König
A pointer to omap_rng_probe is passed to the core via platform_driver_register and so the function must not disappear when the .init sections are discarded. Otherwise (if also having HOTPLUG=y) unbinding and binding a device to the driver via sysfs will result in an oops as does a device being registered late. An alternative to this patch is using platform_driver_probe instead of platform_driver_register plus removing the pointer to the probe function from the struct platform_driver. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: David Brownell <dbrownell@users.sourceforge.net> Cc: Patrick McHardy <kaber@trash.net> Cc: Jan Engelhardt <jengelh@gmx.de> Cc: Michael Buesch <mb@bu3sch.de> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-05-07i.MX31: Add hw-random for RNGAAlan Carvalho de Assis
This hw-random driver add support to RNGA hardware found on some i.MX processors. Signed-off-by: Alan Carvalho de Assis <acassis@gmail.com> Acked-by: Matt Mackall <mpm@selenic.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-04-24virtio-rng: Remove false BUG for spurious callbacksChristian Borntraeger
The virtio-rng drivers checks for spurious callbacks. Since callbacks can be implemented via shared interrupts (e.g. PCI) this could lead to guest kernel oopses with lots of virtio devices. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: ixp4xx - Fix handling of chained sg buffers crypto: shash - Fix unaligned calculation with short length hwrng: timeriomem - Use phys address rather than virt
2009-03-28Merge branch 'origin' into develRussell King
Conflicts: sound/soc/pxa/pxa2xx-i2s.c
2009-03-27hwrng: timeriomem - Use phys address rather than virtAlexander Clouter
There is no ioremap'ing or anything in timeriomem-rng.c as I foolishly used already remapped virtual addresses instead of passing the physical address to be polled. This patch fixes this flaw and lets developers do the Right Thing(tm). Signed-off-by: Alexander Clouter <alex@digriz.org.uk> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-03-21hwrng: timeriomem - Breaks an allyesconfig build on s390:Heiko Carstens
CC drivers/char/hw_random/timeriomem-rng.o drivers/char/hw_random/timeriomem-rng.c: In function 'timeriomem_rng_data_read': drivers/char/hw_random/timeriomem-rng.c:60: error: implicit declaration of function 'readl' Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-02-22hwrng: timeriomem - New driverAlexander Clouter
Some hardware platforms, the TS-7800[1] is one for example, can supply the kernel with an entropy source, albeit a slow one for TS-7800 users, by just reading a particular IO address. This source must not be read above a certain rate otherwise the quality suffers. The driver is then hooked into by calling platform_device_(register|add|del) passing a structure similar to: ------ static struct timeriomem_rng_data ts78xx_ts_rng_data = { .address = (u32 *__iomem) TS_RNG, .period = 1000000, /* one second */ }; static struct platform_device ts78xx_ts_rng_device = { .name = "timeriomem_rng", .id = -1, .dev = { .platform_data = &ts78xx_ts_rng_data, }, .num_resources = 0, }; ------ [1] http://www.embeddedarm.com/products/board-detail.php?product=TS-7800 Signed-off-by: Alexander Clouter <alex@digriz.org.uk> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-02-08[ARM] omap: convert omap RNG clocks to match by devid and conidRussell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-24[ARM] omap: ensure OMAP drivers pass a struct device to clk_get()Russell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-06sparc64: Fix unsigned long long warnings in drivers.Sam Ravnborg
Fix warnings caused by the unsigned long long usage in sparc specific drivers. The drivers were considered sparc specific more or less from the filename alone. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-27Tidy up addresses in random driversAlan Cox
Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-15Merge branch 'fixes' into for-linusRussell King
Conflicts: arch/arm/mach-versatile/core.c
2008-09-05[ARM] omap: convert OMAP drivers to use ioremap()Russell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-31sparc: Annotate of_device_id arrays with const or __initdata.David S. Miller
As suggested by Stephen Rothwell. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-13crypto: padlock - fix VIA PadLock instruction usage with irq_ts_save/restore()Suresh Siddha
Wolfgang Walter reported this oops on his via C3 using padlock for AES-encryption: ################################################################## BUG: unable to handle kernel NULL pointer dereference at 000001f0 IP: [<c01028c5>] __switch_to+0x30/0x117 *pde = 00000000 Oops: 0002 [#1] PREEMPT Modules linked in: Pid: 2071, comm: sleep Not tainted (2.6.26 #11) EIP: 0060:[<c01028c5>] EFLAGS: 00010002 CPU: 0 EIP is at __switch_to+0x30/0x117 EAX: 00000000 EBX: c0493300 ECX: dc48dd00 EDX: c0493300 ESI: dc48dd00 EDI: c0493530 EBP: c04cff8c ESP: c04cff7c DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068 Process sleep (pid: 2071, ti=c04ce000 task=dc48dd00 task.ti=d2fe6000) Stack: dc48df30 c0493300 00000000 00000000 d2fe7f44 c03b5b43 c04cffc8 00000046 c0131856 0000005a dc472d3c c0493300 c0493470 d983ae00 00002696 00000000 c0239f54 00000000 c04c4000 c04cffd8 c01025fe c04f3740 00049800 c04cffe0 Call Trace: [<c03b5b43>] ? schedule+0x285/0x2ff [<c0131856>] ? pm_qos_requirement+0x3c/0x53 [<c0239f54>] ? acpi_processor_idle+0x0/0x434 [<c01025fe>] ? cpu_idle+0x73/0x7f [<c03a4dcd>] ? rest_init+0x61/0x63 ======================= Wolfgang also found out that adding kernel_fpu_begin() and kernel_fpu_end() around the padlock instructions fix the oops. Suresh wrote: These padlock instructions though don't use/touch SSE registers, but it behaves similar to other SSE instructions. For example, it might cause DNA faults when cr0.ts is set. While this is a spurious DNA trap, it might cause oops with the recent fpu code changes. This is the code sequence that is probably causing this problem: a) new app is getting exec'd and it is somewhere in between start_thread() and flush_old_exec() in the load_xyz_binary() b) At pont "a", task's fpu state (like TS_USEDFPU, used_math() etc) is cleared. c) Now we get an interrupt/softirq which starts using these encrypt/decrypt routines in the network stack. This generates a math fault (as cr0.ts is '1') which sets TS_USEDFPU and restores the math that is in the task's xstate. d) Return to exec code path, which does start_thread() which does free_thread_xstate() and sets xstate pointer to NULL while the TS_USEDFPU is still set. e) At the next context switch from the new exec'd task to another task, we have a scenarios where TS_USEDFPU is set but xstate pointer is null. This can cause an oops during unlazy_fpu() in __switch_to() Now: 1) This should happen with or with out pre-emption. Viro also encountered similar problem with out CONFIG_PREEMPT. 2) kernel_fpu_begin() and kernel_fpu_end() will fix this problem, because kernel_fpu_begin() will manually do a clts() and won't run in to the situation of setting TS_USEDFPU in step "c" above. 3) This was working before the fpu changes, because its a spurious math fault which doesn't corrupt any fpu/sse registers and the task's math state was always in an allocated state. With out the recent lazy fpu allocation changes, while we don't see oops, there is a possible race still present in older kernels(for example, while kernel is using kernel_fpu_begin() in some optimized clear/copy page and an interrupt/softirq happens which uses these padlock instructions generating DNA fault). This is the failing scenario that existed even before the lazy fpu allocation changes: 0. CPU's TS flag is set 1. kernel using FPU in some optimized copy routine and while doing kernel_fpu_begin() takes an interrupt just before doing clts() 2. Takes an interrupt and ipsec uses padlock instruction. And we take a DNA fault as TS flag is still set. 3. We handle the DNA fault and set TS_USEDFPU and clear cr0.ts 4. We complete the padlock routine 5. Go back to step-1, which resumes clts() in kernel_fpu_begin(), finishes the optimized copy routine and does kernel_fpu_end(). At this point, we have cr0.ts again set to '1' but the task's TS_USEFPU is stilll set and not cleared. 6. Now kernel resumes its user operation. And at the next context switch, kernel sees it has do a FP save as TS_USEDFPU is still set and then will do a unlazy_fpu() in __switch_to(). unlazy_fpu() will take a DNA fault, as cr0.ts is '1' and now, because we are in __switch_to(), math_state_restore() will get confused and will restore the next task's FP state and will save it in prev tasks's FP state. Remember, in __switch_to() we are already on the stack of the next task but take a DNA fault for the prev task. This causes the fpu leakage. Fix the padlock instruction usage by calling them inside the context of new routines irq_ts_save/restore(), which clear/restore cr0.ts manually in the interrupt context. This will not generate spurious DNA in the context of the interrupt which will fix the oops encountered and the possible FPU leakage issue. Reported-and-bisected-by: Wolfgang Walter <wolfgang.walter@stwm.de> Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-08-07[ARM] Move include/asm-arm/arch-* to arch/arm/*/include/machRussell King
This just leaves include/asm-arm/plat-* to deal with. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-07Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixesRussell King
2008-08-07[ARM] Remove asm/hardware.h, use asm/arch/hardware.h insteadRussell King
Remove includes of asm/hardware.h in addition to asm/arch/hardware.h. Then, since asm/hardware.h only exists to include asm/arch/hardware.h, update everything to directly include asm/arch/hardware.h and remove asm/hardware.h. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-28stop_machine: Wean existing callers off stop_machine_run()Rusty Russell
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-07-18sparc64: Add Niagara2 RNG driver.David S. Miller
With feedback and suggestions from Sam Ravnborg. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-15Merge commit '85082fd7cbe3173198aac0eb5e85ab1edcc6352c' into test-buildBenjamin Herrenschmidt
Manual fixup of: arch/powerpc/Kconfig
2008-07-14Merge commit 'v2.6.26' into bkl-removalJonathan Corbet
2008-06-30pasemi-rng: Use linux/of_platform.h instead of asmStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-06-20hw-random: BKL pushdownArnd Bergmann
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-06-12intel_rng: make device not found a warningStephen Hemminger
Since many distros load this driver by default (throw it against the wall and see what sticks method). Change the error message severity level to avoid alarming users. Isn't it annoying when users actually read the error logs... Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Cc: Michael Buesch <mb@bu3sch.de> Acked-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-30virtio: An entropy device, as suggested by hpa.Rusty Russell
Note that by itself, having a "hardware" random generator does very little: you should probably run "rngd" in your guest to feed this into the kernel entropy pool. Included: virtio_rng: dont use vmalloced addresses for virtio If virtio_rng is build as a module, random_data is an address in vmalloc space. As virtio expects guest real addresses, this can cause any kind of funny behaviour, so lets allocate random_data dynamically with kmalloc. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-04-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: [HWRNG] omap: Minor updates [CRYPTO] kconfig: Ordering cleanup [CRYPTO] all: Clean up init()/fini() [CRYPTO] padlock-aes: Use generic setkey function [CRYPTO] aes: Export generic setkey [CRYPTO] api: Make the crypto subsystem fully modular [CRYPTO] cts: Add CTS mode required for Kerberos AES support [CRYPTO] lrw: Replace all adds to big endians variables with be*_add_cpu [CRYPTO] tcrypt: Change the XTEA test vectors [CRYPTO] tcrypt: Shrink the tcrypt module [CRYPTO] tcrypt: Change the usage of the test vectors [CRYPTO] api: Constify function pointer tables [CRYPTO] aes-x86-32: Remove unused return code [CRYPTO] tcrypt: Shrink speed templates [CRYPTO] tcrypt: Group common speed templates [CRYPTO] sha512: Rename sha512 to sha512_generic [CRYPTO] sha384: Hardware acceleration for s390 [CRYPTO] sha512: Hardware acceleration for s390 [CRYPTO] s390: Generic sha_update and sha_final [CRYPTO] api: Switch to proc_create()
2008-04-21[HWRNG] omap: Minor updatesDavid Brownell
Minor cleanups to the OMAP RNG: - Comment update re RNG status: * yes, it works on 16xx; "rngtest" is quite happy * it's fast enough that polling vs IRQ is a non-issue - Get rid of BUG_ON - Help GCC not be stupid about inlining (object code shrink) - Remove "sparse" warning - Cope with new hotplug rule requiring "platform:" modalias And make the file header match kernel conventions. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>