- 29 Apr, 2008 40 commits
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Harvey Harrison authored
[akpm@linux-foundation.org: coding-style fixes] Signed-off-by:
Harvey Harrison <harvey.harrison@gmail.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Harvey Harrison authored
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Harvey Harrison authored
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Harvey Harrison authored
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OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
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Harvey Harrison authored
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Harvey Harrison authored
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Greg Kroah-Hartman <gregkh@suse.de> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: David Brownell <dbrownell@users.sourceforge.net> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
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Harvey Harrison authored
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Harvey Harrison authored
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Harvey Harrison authored
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Harvey Harrison authored
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Harvey Harrison authored
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Harvey Harrison authored
Remove unnecessary temp variable from_buf in snsc_event.c Signed-off-by:
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Harvey Harrison authored
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Jiri Kosina <jkosina@suse.cz> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
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Harvey Harrison authored
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Harvey Harrison authored
Unaligned access is ok for the following arches: cris, m68k, mn10300, powerpc, s390, x86 Arches that use the memmove implementation for native endian, and the byteshifting for the opposite endianness. h8300, m32r, xtensa Packed struct for native endian, byteshifting for other endian: alpha, blackfin, ia64, parisc, sparc, sparc64, mips, sh m86knommu is generic_be for Coldfire, otherwise unaligned access is ok. frv, arm chooses endianness based on compiler settings, uses the byteshifting versions. Remove the unaligned trap handler from frv as it is now unused. v850 is le, uses the byteshifting versions for both be and le. Remove the now unused asm-generic implementation. Signed-off-by:
David S. Miller <davem@davemloft.net> Cc: <linux-arch@vger.kernel.org> Signed-off-by:
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Harvey Harrison authored
Create a linux/unaligned directory similar in spirit to the linux/byteorder folder to hold generic implementations collected from various arches. Currently there are five implementations: 1) packed_struct.h: C-struct based, from asm-generic/unaligned.h 2) le_byteshift.h: Open coded byte-swapping, heavily based on asm-arm 3) be_byteshift.h: Open coded byte-swapping, heavily based on asm-arm 4) memmove.h: taken from multiple implementations in tree 5) access_ok.h: taken from x86 and others, unaligned access is ok. All of the new implementations checks for sizes not equal to 1,2,4,8 and will fail to link. API additions: get_unaligned_{le16|le32|le64|be16|be32|be64}(p) which is meant to replace code of the form: le16_to_cpu(get_unaligned((__le16 *)p)); put_unaligned_{le16|le32|le64|be16|be32|be64}(val, pointer) which is meant to replace code of the form: put_unaligned(cpu_to_le16(val), (__le16 *)p); The headers that arches should include from their asm/unaligned.h: access_ok.h : Wrappers of the byteswapping functions in asm/byteorder Choose a particular implementation for little-endian access: le_byteshift.h le_memmove.h (arch must be LE) le_struct.h (arch must be LE) Choose a particular implementation for big-endian access: be_byteshift.h be_memmove.h (arch must be BE) be_struct.h (arch must be BE) After including as needed from the above, include unaligned/generic.h and define your arch's get/put_unaligned as (for LE): Signed-off-by: -
Robert P. J. Day authored
Since <linux/sysv_fs.h> isn't exported to userspace, there is little point checking that this is a GNU-compatible compiler. Signed-off-by:
Robert P. J. Day <rpjday@crashcourse.ca> Acked-by:
Christoph Hellwig <hch@lst.de> Signed-off-by:
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Bjorn Helgaas authored
There is no "PNPACPI" driver interface as such. PNPACPI is an internal backend of PNP, and drivers just use the generic PNP interface. The drivers should depend on CONFIG_PNP, not CONFIG_PNPACPI. tpm_nsc.c doesn't use PNP at all, so we can just remove the dependency completely. It probably *should* use PNP to discover the device, but until it does, there's no point in depending on PNP. Signed-off-by:
Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Kylene Jo Hall <kjhall@us.ibm.com> Cc: Marcel Selhorst <tpm@selhorst.net> Signed-off-by:
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Sam Ravnborg authored
Fix following warning: WARNING: vmlinux.o(.init.text+0x32804): Section mismatch in reference from the function init_nsc() to the function .devexit.text:tpm_nsc_remove() The function tpm_nsc_remove() are used outside __exit, so remove the __exit annotation to make sure the function is always avilable. Note: Trying to compare this module with other users of platform_device gve me the impression that this driver needs some work to match other users. Signed-off-by:
Sam Ravnborg <sam@ravnborg.org> Cc: Kylene Hall <kjhall@us.ibm.com> Cc: Marcel Selhorst <tpm@selhorst.net> Signed-off-by:
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Bjorn Helgaas authored
Wrap PNP probe code in #ifdef CONFIG_PNP. We already do the same for CONFIG_PCI. Without this change, we'll have unresolved references to pnp_get_resource() function when CONFIG_PNP=n. (This is a new interface that's not in mainline yet.) Signed-off-by:
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David Howells authored
Add support for the CB.ProbeUuid cache manager RPC op. This allows a modern OpenAFS server to quickly ask if the client has been rebooted. Signed-off-by:
David Howells <dhowells@redhat.com> Signed-off-by:
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David Howells authored
The AFS RxRPC op CBGetCapabilities is actually CBTellMeAboutYourself. Signed-off-by:
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Robert P. J. Day authored
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Hitoshi Mitake authored
I implemented opstate_init() as a inline function in linux/edac.h. added calling opstate_init() to: i82443bxgx_edac.c i82860_edac.c i82875p_edac.c i82975x_edac.c I wrote a fixed patch of edac-fix-module-initialization-on-several-modules.patch, and tested building 2.6.25-rc7 with applying this. It was succeed. I think the patch is now correct. Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by:
Hitoshi Mitake <h.mitake@gmail.com> Signed-off-by:
Doug Thompson <dougthompson@xmission.com> Signed-off-by:
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Adrian Bunk authored
Collection of patches, merged into one, from Adrian that do the following: 1) This patch makes the following needlessly global functions static: - edac_pci_get_log_pe() - edac_pci_get_log_npe() - edac_pci_get_panic_on_pe() - edac_pci_unregister_sysfs_instance_kobj() - edac_pci_main_kobj_setup() 2) Remove unneeded function edac_device_find() 3) Added #if 0 around function edac_pci_find() 4) make the needlessly global edac_pci_generic_check() static 5) Removed function edac_check_mc_devices() Doug Thompson modified Adrian's patches, to bettern represent the direction of EDAC, and make them one patch. Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by:
Adrian Bunk <bunk@kernel.org> Signed-off-by:
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Robert P. J. Day authored
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Doug Thompson <norsk5@yahoo.com> Signed-off-by:
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Peter Tyser authored
Add a module parameter "sysbus_parity" to allow forcing system bus parity error checking on or off. Also add support to automatically disable system bus parity errors for processors which do not support it. If the sysbus_parity parameter is specified, sysbus parity detection will be forced on or off. If it is not specified, the driver will attempt to look at the CPU identifier string and determine if the CPU supports system bus parity. A blacklist was used instead of a whitelist so that system bus parity would be enabled by default and to minimize the chances of breaking things for those people already using the driver which for some reason have a processor that does not have a valid CPU identifier string. [akpm@linux-foundation.org: coding-style fixes] Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by:
Peter Tyser <ptyser@xes-inc.com> Signed-off-by:
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Andrei Konovalov authored
Add Intel 3100 chipset support to e752x EDAC driver. Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by:
Andrei Konovalov <akonovalov@ru.mvista.com> Signed-off-by:
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Akinobu Mita authored
Avoid a possible kmem_cache_create() failure by creating idr_layer_cache unconditionary at boot time rather than creating it on-demand when idr_init() is called the first time. This change also enables us to eliminate the check every time idr_init() is called. [akpm@linux-foundation.org: rename init_id_cache() to idr_init_cache()] [akpm@linux-foundation.org: fix alpha build] Signed-off-by:
Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by:
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Hirofumi Nakagawa authored
Some drivers have duplicated unlikely() macros. IS_ERR() already has unlikely() in itself. This patch cleans up such pointless code. Signed-off-by:
Hirofumi Nakagawa <hnakagawa@miraclelinux.com> Acked-by:
Jeff Garzik <jeff@garzik.org> Cc: Paul Clements <paul.clements@steeleye.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: David Brownell <david-b@pacbell.net> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Anton Altaparmakov <aia21@cantab.net> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Carsten Otte <cotte@de.ibm.com> Cc: Patrick McHardy <kaber@trash.net> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Jaroslav Kysela <perex@perex.cz> Cc: Takashi Iwai <tiwai@suse.de> Acked-by:
Mike Frysinger <vapier@gentoo.org> Signed-off-by:
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Jeff Dike authored
Add async notification support to /dev/random. A little test case is below. Without this patch, you get: $ ./async-random Drained the pool Found more randomness With it, you get: $ ./async-random Drained the pool SIGIO Found more randomness #include <stdio.h> #include <stdlib.h> #include <signal.h> #include <errno.h> #include <fcntl.h> static void handler(int sig) { printf("SIGIO\n"); } int main(int argc, char **argv) { int fd, n, err, flags; if(signal(SIGIO, handler) < 0){ perror("setting SIGIO handler"); exit(1); } fd = open("/dev/random", O_RDONLY); if(fd < 0){ perror("open"); exit(1); } flags = fcntl(fd, F_GETFL); if (flags < 0){ perror("getting flags"); exit(1); } flags |= O_NONBLOCK; if (fcntl(fd, F_SETFL, flags) < 0){ perror("setting flags"); exit(1); } while((err = read(fd, &n, sizeof(n))) > 0) ; if(err == 0){ printf("random returned 0\n"); exit(1); } else if(errno != EAGAIN){ perror("read"); exit(1); } flags |= O_ASYNC; if (fcntl(fd, F_SETFL, flags) < 0){ perror("setting flags"); exit(1); } if (fcntl(fd, F_SETOWN, getpid()) < 0) { perror("Setting SIGIO"); exit(1); } printf("Drained the pool\n"); read(fd, &n, sizeof(n)); printf("Found more randomness\n"); return(0); } Signed-off-by:Jeff Dike <jdike@linux.intel.com> Signed-off-by:
Matt Mackall <mpm@selenic.com> Cc: Theodore Ts'o <tytso@mit.edu> Signed-off-by:
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Matt Mackall authored
- emphasize bits in the name - make zero bits lock-free - simplify logic Signed-off-by:
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Matt Mackall authored
Switch add_entropy_words to a byte-oriented interface, eliminating numerous casts and byte/word size rounding issues. This also reduces the overall bit/byte/word confusion in this code. We now mix a byte at a time into the word-based pool. This takes four times as many iterations, but should be negligible compared to hashing overhead. This also increases our pool churn, which adds some depth against some theoretical failure modes. The function name is changed to emphasize pool mixing and deemphasize entropy (the samples mixed in may not contain any). extract is added to the core function to make it clear that it extracts from the pool. Signed-off-by:
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Matt Mackall authored
The add_ptr variable wasn't used in a sensible way, use only i instead. i got reused later for a different purpose, use j instead. While we're here, put tap0 first in the tap list and add a comment. Signed-off-by:
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Matt Mackall authored
The urandom output pool (ie the fast path) fits in one cacheline, so this is pretty unnecessary. Further, the output path has already fetched the entire pool to hash it before calling in here. (This was the only user of prefetch_range in the kernel, and it passed in words rather than bytes!) Signed-off-by:
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Matt Mackall authored
- eliminate new_rotate - move input_rotate masking - simplify input_rotate update - move input_rotate update to end of inner loop for readability Signed-off-by:
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Matt Mackall authored
Earlier changes greatly reduce the number of times we grab the lock per output byte, so we shouldn't need this particular hack any more. Signed-off-by:
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Matt Mackall authored
At each extraction, we change (poolbits / 16) + 32 bits in the pool, or 96 bits in the case of the secondary pools. Thus, a brute-force backtracking attack on the pool state is less difficult than breaking the hash. In certain cases, this difficulty may be is reduced to 2^64 iterations. Instead, hash the entire pool in one go, then feedback the whole hash (160 bits) in one go. This will make backtracking at least as hard as inverting the hash. Signed-off-by:
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Matt Mackall authored
- split the SHA variables apart into hash and workspace - rename data to extract - wipe extract and workspace after hashing Signed-off-by:
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Matt Mackall authored
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