)]}' { "log": [ { "commit": "e71f5cc402ecb42b407ae52add7b173bf1c53daa", "tree": "03e1b260a42a59e3fea1a3db4f39a9a260dd0a58", "parents": [ "88cee8fd77af28d414b983798dd30c8950c71e31" ], "author": { "name": "Naga Chumbalkar", "email": "nagananda.chumbalkar@hp.com", "time": "Wed Sep 14 16:22:23 2011 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 14 18:09:38 2011 -0700" }, "message": "drivers/cpufreq/pcc-cpufreq.c: avoid NULL pointer dereference\n\nper_cpu(processors, n) can be NULL, resulting in:\n\n Loading CPUFreq modules[ 437.661360] BUG: unable to handle kernel NULL pointer dereference at (null)\n IP: [\u003cffffffffa0434314\u003e] pcc_cpufreq_cpu_init+0x74/0x220 [pcc_cpufreq]\n\nIt\u0027s better to avoid the oops by failing the driver, and allowing the\nsystem to boot.\n\nSigned-off-by: Naga Chumbalkar \u003cnagananda.chumbalkar@hp.com\u003e\nCc: Dave Jones \u003cdavej@codemonkey.org.uk\u003e\nCc: Len Brown \u003clenb@kernel.org\u003e\nCc: \u003cstable@kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "bb0a56ecc4ba2a3db1b6ea6949c309886e3447d3", "tree": "680b1307d7d9c1a188b7483875f7a3287d8b51a0", "parents": [ "1a8e1463a49aaa452da1cefe184a00d4df47f1ef" ], "author": { "name": "Dave Jones", "email": "davej@redhat.com", "time": "Thu May 19 18:51:07 2011 -0400" }, "committer": { "name": "Dave Jones", "email": "davej@redhat.com", "time": "Thu May 19 18:51:07 2011 -0400" }, "message": "[CPUFREQ] Move x86 drivers to drivers/cpufreq/\n\nSigned-off-by: Dave Jones \u003cdavej@redhat.com\u003e\n" }, { "commit": "2d06d8c49afdcc9bb35a85039fa50f0fe35bd40e", "tree": "d933a68fc71f6e2c3b95b744a87fa1d817bea3d6", "parents": [ "27ecddc2a9f99ce4ac9a59a0acd77f7100b6d034" ], "author": { "name": "Dominik Brodowski", "email": "linux@dominikbrodowski.net", "time": "Sun Mar 27 15:04:46 2011 +0200" }, "committer": { "name": "Dave Jones", "email": "davej@redhat.com", "time": "Wed May 04 11:50:57 2011 -0400" }, "message": "[CPUFREQ] use dynamic debug instead of custom infrastructure\n\nWith dynamic debug having gained the capability to report debug messages\nalso during the boot process, it offers a far superior interface for\ndebug messages than the custom cpufreq infrastructure. As a first step,\nremove the old cpufreq_debug_printk() function and replace it with a call\nto the generic pr_debug() function.\n\nHow can dynamic debug be used on cpufreq? You need a kernel which has\nCONFIG_DYNAMIC_DEBUG enabled.\n\nTo enabled debugging during runtime, mount debugfs and\n\n$ echo -n \u0027module cpufreq +p\u0027 \u003e /sys/kernel/debug/dynamic_debug/control\n\nfor debugging the complete \"cpufreq\" module. To achieve the same goal during\nboot, append\n\n\tddebug_query\u003d\"module cpufreq +p\"\n\nas a boot parameter to the kernel of your choice.\n\nFor more detailled instructions, please see\nDocumentation/dynamic-debug-howto.txt\n\nSigned-off-by: Dominik Brodowski \u003clinux@dominikbrodowski.net\u003e\nSigned-off-by: Dave Jones \u003cdavej@redhat.com\u003e\n" }, { "commit": "904cc1e637a00dba1b58e7752f485f90ebf2a568", "tree": "a6ba3a7fbd884fbefd342617bb32e5189c19816b", "parents": [ "5dd12af05ca6b7d052c06a9ca4ff755fdfa25ae4" ], "author": { "name": "Naga Chumbalkar", "email": "nagananda.chumbalkar@hp.com", "time": "Tue Apr 26 17:05:18 2011 +0000" }, "committer": { "name": "Dave Jones", "email": "davej@redhat.com", "time": "Wed May 04 11:50:56 2011 -0400" }, "message": "[CPUFREQ] Fix _OSC UUID in pcc-cpufreq\n\nUUID needs to be written out the way it is described in\nSec 18.5.124 of ACPI 4.0a Specification.\n\nPlatform firmware\u0027s use of this UUID/_OSC is optional, which is\nwhy we didn\u0027t notice this bug earlier.\n\nSigned-off-by: Naga Chumbalkar \u003cnagananda.chumbalkar@hp.com\u003e\nSigned-off-by: Dave Jones \u003cdavej@redhat.com\u003e\nCc: stable@kernel.org\n" }, { "commit": "bdce2595a2f539c6fdedd8f2bd281326b627bba3", "tree": "54f901dea85f94537929ece27af11f8e2cc524f4", "parents": [ "7ca64e2d2859e96a325c28678b5fdb5e17a5764b" ], "author": { "name": "Chumbalkar, Nagananda", "email": "Nagananda.Chumbalkar@hp.com", "time": "Wed Mar 16 21:37:41 2011 +0000" }, "committer": { "name": "Dave Jones", "email": "davej@redhat.com", "time": "Wed Mar 16 17:54:33 2011 -0400" }, "message": "[CPUFREQ] pcc-cpufreq: remove duplicate statements\n\nRemove a couple of assigment statements that appear twice.\n\nSigned-off-by: Naga Chumbalkar \u003cnagananda.chumbalkar@hp.com\u003e\nSigned-off-by: Dave Jones \u003cdavej@redhat.com\u003e\n" }, { "commit": "1f858ef2fbabdc5e645644010a31a40c32e397c9", "tree": "8d9d0306d0cc275e72b9fa34101f844e5a573ebe", "parents": [ "a5abba989deceb731047425812d268daf7536575" ], "author": { "name": "Naga Chumbalkar", "email": "nagananda.chumbalkar@hp.com", "time": "Wed Mar 09 14:02:49 2011 +0000" }, "committer": { "name": "Dave Jones", "email": "davej@redhat.com", "time": "Wed Mar 09 12:33:15 2011 -0500" }, "message": "[CPUFREQ] pcc-cpufreq: don\u0027t load driver if get_freq fails during init.\n\nReturn 0 on failure. This will cause the initialization of the driver\nto fail and prevent the driver from loading if the BIOS cannot handle\nthe PCC interface command to \"get frequency\". Otherwise, the driver\nwill load and display a very high value like \"4294967274\" (which is\nactually -EINVAL) for frequency:\n\n# cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_cur_freq\n4294967274\n\nSigned-off-by: Naga Chumbalkar \u003cnagananda.chumbalkar@hp.com\u003e\nCC: stable@kernel.org\nSigned-off-by: Dave Jones \u003cdavej@redhat.com\u003e\n" }, { "commit": "3682930623f63c693845d9620c6bcdf5598c9bbb", "tree": "5f34ebbd52bf077da60bb13b6e5b4daca469108c", "parents": [ "86cf1474948a91c67b3dd58f8b360006c82e0068" ], "author": { "name": "Pekka Enberg", "email": "penberg@cs.helsinki.fi", "time": "Thu Sep 30 22:57:33 2010 +0300" }, "committer": { "name": "Dave Jones", "email": "davej@redhat.com", "time": "Thu Sep 30 16:14:23 2010 -0400" }, "message": "[CPUFREQ] Fix memory leaks in pcc_cpufreq_do_osc\n\nIf acpi_evaluate_object() function call doesn\u0027t fail, we must kfree()\noutput.buffer before returning from pcc_cpufreq_do_osc().\n\nSigned-off-by: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nAcked-by: David Rientjes \u003crientjes@google.com\u003e\nSigned-off-by: Dave Jones \u003cdavej@redhat.com\u003e\n" }, { "commit": "a3da323420d5aa6f7bd15efc7bf34cd6d19e1f1a", "tree": "5a426b20876d92f8ba1c212da5eee9cdf7882ba0", "parents": [ "5af568cbd55f60b5a1d174f621b273e4f585dc35" ], "author": { "name": "Namhyung Kim", "email": "namhyung@gmail.com", "time": "Sun Aug 08 02:37:23 2010 +0900" }, "committer": { "name": "Dave Jones", "email": "davej@redhat.com", "time": "Thu Aug 12 12:38:06 2010 -0400" }, "message": "[CPUFREQ] add missing __percpu markup in pcc-cpufreq.c\n\npcc_cpu_info is a percpu pointer but was missing __percpu markup.\nAdd it.\n\nSigned-off-by: Namhyung Kim \u003cnamhyung@gmail.com\u003e\nAcked-by: Tejun Heo \u003ctj@kernel.org\u003e\nSigned-off-by: Dave Jones \u003cdavej@redhat.com\u003e\n" }, { "commit": "179ee43465343d1f8f2a4af25ead4ae15e43fa6e", "tree": "7e8f56588cbb44657a801a23e1589308f0cc553e", "parents": [ "3847d223f2e4da5ceb47ea8996618010192f3197" ], "author": { "name": "Matthew Garrett", "email": "mjg@redhat.com", "time": "Thu Jul 15 11:44:00 2010 -0400" }, "committer": { "name": "Dave Jones", "email": "davej@redhat.com", "time": "Mon Jul 26 15:25:34 2010 -0400" }, "message": "[CPUFREQ] Fix PCC driver error path\n\nThe PCC cpufreq driver unmaps the mailbox address range if any CPUs fail to\ninitialise, but doesn\u0027t do anything to remove the registered CPUs from the\ncpufreq core resulting in failures further down the line. We\u0027re better off\nsimply returning a failure - the cpufreq core will unregister us cleanly if\nwe end up with no successfully registered CPUs. Tidy up the failure path\nand also add a sanity check to ensure that the firmware gives us a realistic\nfrequency - the core deals badly with that being set to 0.\n\nSigned-off-by: Matthew Garrett \u003cmjg@redhat.com\u003e\nCc: Naga Chumbalkar \u003cnagananda.chumbalkar@hp.com\u003e\nSigned-off-by: Dave Jones \u003cdavej@redhat.com\u003e\n" }, { "commit": "3847d223f2e4da5ceb47ea8996618010192f3197", "tree": "05e83cca56e1f887f4b59a76f4d63a1016644d8d", "parents": [ "47f8bcf362410b631a4d99ff5c79ec6b9dd3ace6" ], "author": { "name": "Daniel J Blueman", "email": "daniel.blueman@gmail.com", "time": "Fri Jul 23 23:06:52 2010 +0100" }, "committer": { "name": "Dave Jones", "email": "davej@redhat.com", "time": "Mon Jul 26 15:25:34 2010 -0400" }, "message": "[CPUFREQ] fix double freeing in error path of pcc-cpufreq\n\nPrevent double freeing on error path.\n\nSigned-off-by: Daniel J Blueman \u003cdaniel.blueman@gmail.com\u003e\nSigned-off-by: Dave Jones \u003cdavej@redhat.com\u003e\n" }, { "commit": "47f8bcf362410b631a4d99ff5c79ec6b9dd3ace6", "tree": "2c6486e767ec0007a01db589b8eec05d90d148a0", "parents": [ "6f90388ac98e8cb2c63e307ffb13871a6b87f29b" ], "author": { "name": "Matthew Garrett", "email": "mjg@redhat.com", "time": "Tue Jul 20 13:52:00 2010 -0400" }, "committer": { "name": "Dave Jones", "email": "davej@redhat.com", "time": "Mon Jul 26 15:25:34 2010 -0400" }, "message": "[CPUFREQ] pcc driver should check for pcch method before calling _OSC\n\nThe pcc specification documents an _OSC method that\u0027s incompatible with the\none defined as part of the ACPI spec. This shouldn\u0027t be a problem as both\nare supposed to be guarded with a UUID. Unfortunately approximately nobody\n(including HP, who wrote this spec) properly check the UUID on entry to the\n_OSC call. Right now this could result in surprising behaviour if the pcc\ndriver performs an _OSC call on a machine that doesn\u0027t implement the pcc\nspecification. Check whether the PCCH method exists first in order to reduce\nthis probability.\n\nSigned-off-by: Matthew Garrett \u003cmjg@redhat.com\u003e\nCc: Naga Chumbalkar \u003cnagananda.chumbalkar@hp.com\u003e\nSigned-off-by: Dave Jones \u003cdavej@redhat.com\u003e\n" }, { "commit": "5a0e3ad6af8660be21ca98a971cd00f331318c05", "tree": "5bfb7be11a03176a87296a43ac6647975c00a1d1", "parents": [ "ed391f4ebf8f701d3566423ce8f17e614cde9806" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Wed Mar 24 17:04:11 2010 +0900" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Tue Mar 30 22:02:32 2010 +0900" }, "message": "include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h\n\npercpu.h is included by sched.h and module.h and thus ends up being\nincluded when building most .c files. percpu.h includes slab.h which\nin turn includes gfp.h making everything defined by the two files\nuniversally available and complicating inclusion dependencies.\n\npercpu.h -\u003e slab.h dependency is about to be removed. Prepare for\nthis change by updating users of gfp and slab facilities include those\nheaders directly instead of assuming availability. As this conversion\nneeds to touch large number of source files, the following script is\nused as the basis of conversion.\n\n http://userweb.kernel.org/~tj/misc/slabh-sweep.py\n\nThe script does the followings.\n\n* Scan files for gfp and slab usages and update includes such that\n only the necessary includes are there. ie. if only gfp is used,\n gfp.h, if slab is used, slab.h.\n\n* When the script inserts a new include, it looks at the include\n blocks and try to put the new include such that its order conforms\n to its surrounding. It\u0027s put in the include block which contains\n core kernel includes, in the same order that the rest are ordered -\n alphabetical, Christmas tree, rev-Xmas-tree or at the end if there\n doesn\u0027t seem to be any matching order.\n\n* If the script can\u0027t find a place to put a new include (mostly\n because the file doesn\u0027t have fitting include block), it prints out\n an error message indicating which .h file needs to be added to the\n file.\n\nThe conversion was done in the following steps.\n\n1. The initial automatic conversion of all .c files updated slightly\n over 4000 files, deleting around 700 includes and adding ~480 gfp.h\n and ~3000 slab.h inclusions. The script emitted errors for ~400\n files.\n\n2. Each error was manually checked. Some didn\u0027t need the inclusion,\n some needed manual addition while adding it to implementation .h or\n embedding .c file was more appropriate for others. This step added\n inclusions to around 150 files.\n\n3. The script was run again and the output was compared to the edits\n from #2 to make sure no file was left behind.\n\n4. Several build tests were done and a couple of problems were fixed.\n e.g. lib/decompress_*.c used malloc/free() wrappers around slab\n APIs requiring slab.h to be added manually.\n\n5. The script was run on all .h files but without automatically\n editing them as sprinkling gfp.h and slab.h inclusions around .h\n files could easily lead to inclusion dependency hell. Most gfp.h\n inclusion directives were ignored as stuff from gfp.h was usually\n wildly available and often used in preprocessor macros. Each\n slab.h inclusion directive was examined and added manually as\n necessary.\n\n6. percpu.h was updated not to include slab.h.\n\n7. Build test were done on the following configurations and failures\n were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my\n distributed build env didn\u0027t work with gcov compiles) and a few\n more options had to be turned off depending on archs to make things\n build (like ipr on powerpc/64 which failed due to missing writeq).\n\n * x86 and x86_64 UP and SMP allmodconfig and a custom test config.\n * powerpc and powerpc64 SMP allmodconfig\n * sparc and sparc64 SMP allmodconfig\n * ia64 SMP allmodconfig\n * s390 SMP allmodconfig\n * alpha SMP allmodconfig\n * um on x86_64 SMP allmodconfig\n\n8. percpu.h modifications were reverted so that it could be applied as\n a separate patch and serve as bisection point.\n\nGiven the fact that I had only a couple of failures from tests on step\n6, I\u0027m fairly confident about the coverage of this conversion patch.\nIf there is a breakage, it\u0027s likely to be something in one of the arch\nheaders which should be easily discoverable easily on most builds of\nthe specific arch.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nGuess-its-ok-by: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nCc: Ingo Molnar \u003cmingo@redhat.com\u003e\nCc: Lee Schermerhorn \u003cLee.Schermerhorn@hp.com\u003e\n" }, { "commit": "fb4635932a4e19c2f55383f968a0e9b64da37354", "tree": "a4dcfe4f952fa999067498437d6a597c7561e1d0", "parents": [ "0f1d683fb35d6c6f49ef696c95757f3970682a0e" ], "author": { "name": "Dave Jones", "email": "davej@redhat.com", "time": "Thu Jan 07 15:26:22 2010 -0500" }, "committer": { "name": "Dave Jones", "email": "davej@redhat.com", "time": "Wed Jan 13 10:55:17 2010 -0500" }, "message": "[CPUFREQ] Fix cast warning in pcc driver.\n\narch/x86/kernel/cpu/cpufreq/pcc-cpufreq.c:458: warning: cast from pointer to integer of different size\n\nSigned-off-by: Dave Jones \u003cdavej@redhat.com\u003e\n" }, { "commit": "0f1d683fb35d6c6f49ef696c95757f3970682a0e", "tree": "098c4510540881debdd6113e62be00f8b503ce8f", "parents": [ "1dbf58881f307e21a3df4b990a5bea401360d02e" ], "author": { "name": "Naga Chumbalkar", "email": "nagananda.chumbalkar@hp.com", "time": "Thu Dec 17 20:18:27 2009 +0000" }, "committer": { "name": "Dave Jones", "email": "davej@redhat.com", "time": "Wed Jan 13 10:55:16 2010 -0500" }, "message": "[CPUFREQ] Processor Clocking Control interface driver\n\nProcessor Clocking Control (PCC) is an interface between the BIOS and OSPM.\nBased on the server workload, OSPM can request what frequency it expects\nfrom a logical CPU, and the BIOS will achieve that frequency transparently.\n\nThis patch introduces driver support for PCC. OSPM uses the PCC driver to\ncommunicate with the BIOS via the PCC interface.\n\nThere is a Documentation file that provides a link to the PCC\nSpecification, and also provides a summary of the PCC interface.\n\nCurrently, certain HP ProLiant platforms implement the PCC interface. However,\nany platform whose BIOS implements the PCC Specification, can utilize this\ndriver.\n\nV2 --\u003e V1 changes (based on Dominik\u0027s suggestions):\n- Removed the dependency on CPU_FREQ_TABLE\n- \"cpufreq_stats\" will no longer PANIC. Actually, it will not load anymore\nbecause it is not applicable.\n- Removed the sanity check for target frequency in the -\u003etarget routine.\n\nNOTE: A patch to sanitize the target frequency requested by \"ondemand\" is\nneeded to ensure that the target freq \u003c policy-\u003emin.\n\nCan this driver be queued up for the 2.6.33 tree?\n\nSigned-off-by: Naga Chumbalkar \u003cnagananda.chumbalkar@hp.com\u003e\nSigned-off-by: Matthew Garrett \u003cmjg@redhat.com\u003e\nSigned-off-by: Thomas Renninger \u003ctrenn@suse.de\u003e\nSigned-off-by: Dave Jones \u003cdavej@redhat.com\u003e\n" } ] }