- 17 Jul, 2018 35 commits
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Dave Hansen authored
commit 1e61f78b upstream x86 has two macros which allow us to evaluate some CPUID-based features at compile time: REQUIRED_MASK_BIT_SET() DISABLED_MASK_BIT_SET() They're both defined by having the compiler check the bit argument against some constant masks of features. But, when adding new CPUID leaves, we need to check new words for these macros. So make sure that those macros and the REQUIRED_MASK* and DISABLED_MASK* get updated when necessary. This looks kinda silly to have an open-coded value ("18" in this case) open-coded in 5 places in the code. But, we really do need 5 places updated when NCAPINTS gets bumped, so now we just force the issue. Signed-off-by:
Dave Hansen <dave.hansen@linux.intel.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Dave Hansen <dave@sr71.net> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20160629200108.92466F6F@viggo.jf.intel.comSigned-off-by:
Ingo Molnar <mingo@kernel.org> Signed-off-by:
Srivatsa S. Bhat <srivatsa@csail.mit.edu> Reviewed-by:
Matt Helsley (VMware) <matt.helsley@gmail.com> Reviewed-by:
Alexey Makhalov <amakhalov@vmware.com> Reviewed-by:
Bo Gan <ganb@vmware.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Dave Hansen authored
commit 6e17cb9c upstream We had a new CPUID "NCAPINT" word added, but the REQUIRED_MASK and DISABLED_MASK macros did not get updated. Update them. None of the features was needed in these masks, so there was no harm, but we should keep them updated anyway. Signed-off-by:
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Dave Hansen authored
commit e8df1a95 upstream When I added support for the Memory Protection Keys processor feature, I had to reindent the REQUIRED/DISABLED_MASK macros, and also consult the later cpufeature words. I'm not quite sure how I bungled it, but I consulted the wrong word at the end. This only affected required or disabled cpu features in cpufeature words 14, 15 and 16. So, only Protection Keys itself was screwed over here. The result was that if you disabled pkeys in your .config, you might still see some code show up that should have been compiled out. There should be no functional problems, though. In verifying this patch I also realized that the DISABLE_PKU/OSPKE macros were defined backwards and that the cpu_has() check in setup_pku() was not doing the compile-time disabled checks. So also fix the macro for DISABLE_PKU/OSPKE and add a compile-time check for pkeys being enabled in setup_pku(). Signed-off-by:
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Yazen Ghannam authored
commit 71faad43 upstream Add a new CPUID leaf to hold the contents of CPUID 0x80000007_EBX (RasCap). Define bits that are currently in use: Bit 0: McaOverflowRecov Bit 1: SUCCOR Bit 3: ScalableMca Signed-off-by:
Yazen Ghannam <Yazen.Ghannam@amd.com> [ Shorten comment. ] Signed-off-by:
Borislav Petkov <bp@suse.de> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: linux-edac <linux-edac@vger.kernel.org> Link: http://lkml.kernel.org/r/1462971509-3856-5-git-send-email-bp@alien8.deSigned-off-by:
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Dave Hansen authored
commit 0d47638f upstream Kirill Shutemov pointed this out to me. The tip tree currently has commit: dfb4a70f [x86/cpufeature, x86/mm/pkeys: Add protection keys related CPUID definitions] whioch added support for two new CPUID bits: X86_FEATURE_PKU and X86_FEATURE_OSPKE. But, those bits were mis-merged and put in cpufeature.h instead of cpufeatures.h. This didn't cause any breakage *except* it keeps the "ospke" and "pku" bits from showing up in cpuinfo. Now cpuinfo has the two new flags: flags : ... pku ospke BTW, is it really wise to have cpufeature.h and cpufeatures.h? It seems like they can only cause confusion and mahem with tab completion. Reported-by:
Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by:
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Dave Hansen authored
commit dfb4a70f upstream There are two CPUID bits for protection keys. One is for whether the CPU contains the feature, and the other will appear set once the OS enables protection keys. Specifically: Bit 04: OSPKE. If 1, OS has set CR4.PKE to enable Protection keys (and the RDPKRU/WRPKRU instructions) This is because userspace can not see CR4 contents, but it can see CPUID contents. X86_FEATURE_PKU is referred to as "PKU" in the hardware documentation: CPUID.(EAX=07H,ECX=0H):ECX.PKU [bit 3] X86_FEATURE_OSPKE is "OSPKU": CPUID.(EAX=07H,ECX=0H):ECX.OSPKE [bit 4] These are the first CPU features which need to look at the ECX word in CPUID leaf 0x7, so this patch also includes fetching that word in to the cpuinfo->x86_capability[] array. Add it to the disabled-features mask when its config option is off. Even though we are not using it here, we also extend the REQUIRED_MASK_BIT_SET() macro to keep it mirroring the DISABLED_MASK_BIT_SET() version. This means that in almost all code, you should use: cpu_has(c, X86_FEATURE_PKU) and *not* the CONFIG option. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Dave Hansen <dave@sr71.net> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rik van Riel <riel@redhat.com> Cc: linux-mm@kvack.org Link: http://lkml.kernel.org/r/20160212210201.7714C250@viggo.jf.intel.comSigned-off-by:
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Borislav Petkov authored
commit f2cc8e07 upstream When GCC cannot do constant folding for this macro, it falls back to cpu_has(). But static_cpu_has() is optimal and it works at all times now. So use it and speedup the fallback case. Before we had this: mov 0x99d674(%rip),%rdx # ffffffff81b0d9f4 <boot_cpu_data+0x34> shr $0x2e,%rdx and $0x1,%edx jne ffffffff811704e9 <do_munmap+0x3f9> After alternatives patching, it turns into: jmp 0xffffffff81170390 nopl (%rax) ... callq ffffffff81056e00 <mpx_notify_unmap> ffffffff81170390: mov 0x170(%r12),%rdi Signed-off-by:
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Alexander Kuleshov authored
commit a4733143 upstream We are using %rax as temporary register to check the kernel address alignment. We don't really have to since the TEST instruction does not clobber the destination operand. Suggested-by:
Brian Gerst <brgerst@gmail.com> Signed-off-by:
Alexander Kuleshov <kuleshovmail@gmail.com> Signed-off-by:
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Borislav Petkov authored
commit 8c725306 upstream ... and simplify and speed up a tad. Signed-off-by:
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Brian Gerst authored
commit 2476f2fa upstream Move the code to do the dynamic check to the altinstr_aux section so that it is discarded after alternatives have run and a static branch has been chosen. This way we're changing the dynamic branch from C code to assembly, which makes it *substantially* smaller while avoiding a completely unnecessary call to an out of line function. Signed-off-by:
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Borislav Petkov authored
commit 337e4cc8 upstream Add .altinstr_aux for additional instructions which will be used before and/or during patching. All stuff which needs more sophisticated patching should go there. See next patch. Signed-off-by:
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Borislav Petkov authored
commit a362bf9f upstream I can simply quote hpa from the mail: "Get rid of the non-asm goto variant and just fall back to dynamic if asm goto is unavailable. It doesn't make any sense, really, if it is supposed to be safe, and by now the asm goto-capable gcc is in more wide use. (Originally the gcc 3.x fallback to pure dynamic didn't exist, either.)" Booy, am I lazy. Cleanup the whole CC_HAVE_ASM_GOTO ifdeffery too, while at it. Suggested-by:
H. Peter Anvin <hpa@zytor.com> Signed-off-by:
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Borislav Petkov authored
commit bc696ca0 upstream So the old one didn't work properly before alternatives had run. And it was supposed to provide an optimized JMP because the assumption was that the offset it is jumping to is within a signed byte and thus a two-byte JMP. So I did an x86_64 allyesconfig build and dumped all possible sites where static_cpu_has() was used. The optimization amounted to all in all 12(!) places where static_cpu_has() had generated a 2-byte JMP. Which has saved us a whopping 36 bytes! This clearly is not worth the trouble so we can remove it. The only place where the optimization might count - in __switch_to() - we will handle differently. But that's not subject of this patch. Signed-off-by:
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Borislav Petkov authored
commit cd4d09ec upstream Move them to a separate header and have the following dependency: x86/cpufeatures.h <- x86/processor.h <- x86/cpufeature.h This makes it easier to use the header in asm code and not include the whole cpufeature.h and add guards for asm. Suggested-by:
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Andi Kleen authored
commit 153a4334 upstream asm/atomic.h doesn't really need asm/processor.h anymore. Everything it uses has moved to other header files. So remove that include. processor.h is a nasty header that includes lots of other headers and makes it prone to include loops. Removing the include here makes asm/atomic.h a "leaf" header that can be safely included in most other headers. The only fallout is in the lib/atomic tester which relied on this implicit include. Give it an explicit include. (the include is in ifdef because the user is also in ifdef) Signed-off-by:
Andi Kleen <ak@linux.intel.com> Signed-off-by:
Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Cc: rostedt@goodmis.org Link: http://lkml.kernel.org/r/1449018060-1742-1-git-send-email-andi@firstfloor.orgSigned-off-by:
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Borislav Petkov authored
commit b7106fa0 upstream Add macros for the alternative XSAVE*/XRSTOR* operations which contain the fault handling and use them. Kill xstate_fault(). Also, copy_xregs_to_kernel() didn't have the extended state as memory reference in the asm. Signed-off-by:
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Borislav Petkov authored
commit b74a0cf1 upstream Add an XSTATE_OP() macro which contains the XSAVE* fault handling and replace all non-alternatives users of xstate_fault() with it. This fixes also the buglet in copy_xregs_to_user() and copy_user_to_xregs() where the inline asm didn't have @xstate as memory reference and thus potentially causing unwanted reordering of accesses to the extended state. Signed-off-by:
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Borislav Petkov authored
commit 6e1315fe upstream This brings .text savings of about ~1.6K when building a tinyconfig. It is off by default so nothing changes for the default. Kconfig help text from Josh. Signed-off-by:
Josh Triplett <josh@joshtriplett.org> Link: http://lkml.kernel.org/r/1449481182-27541-5-git-send-email-bp@alien8.deSigned-off-by:
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Borislav Petkov authored
commit 39c06df4 upstream Add an enum for the ->x86_capability array indices and cleanup get_cpu_cap() by killing some redundant local vars. Signed-off-by:
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Borislav Petkov authored
commit 2ccd71f1 upstream Turn the CPUID leafs which are proper CPUID feature bit leafs into separate ->x86_capability words. Signed-off-by:
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Steve Wise authored
commit 7b72717a upstream. The code was mistakenly using the length of the page array memory instead of the depth of the page array. This would cause MR creation to fail in some cases. Fixes: 8376b86d ("iw_cxgb4: Support the new memory registration API") Cc: stable@vger.kernel.org Signed-off-by:
Steve Wise <swise@opengridcomputing.com> Signed-off-by:
Jason Gunthorpe <jgg@mellanox.com> Signed-off-by:
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Paul Menzel authored
commit 9feeb638 upstream. In 2016 GNU Make made a backwards incompatible change to the way '#' characters were handled in Makefiles when used inside functions or macros: http://git.savannah.gnu.org/cgit/make.git/commit/?id=c6966b323811c37acedff05b57 Due to this change, when attempting to run `make prepare' I get a spurious make syntax error: /home/earnest/linux/tools/objtool/.fixdep.o.cmd:1: *** missing separator. Stop. When inspecting `.fixdep.o.cmd' it includes two lines which use unescaped comment characters at the top: \# cannot find fixdep (/home/earnest/linux/tools/objtool//fixdep) \# using basic dep data This is because `tools/build/Build.include' prints these '\#' characters: printf '\# cannot find fixdep (%s)\n' $(fixdep) > $(dot-target).cmd; \ printf '\# using basic dep data\n\n' >> $(dot-target).cmd; \ This completes commit 9564a8cf ("Kbuild: fix # escaping in .cmd files for future Make"). Link: https://bugzilla.kernel.org/show_bug.cgi?id=197847 Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: stable@vger.kernel.org Signed-off-by:
Paul Menzel <pmenzel@molgen.mpg.de> Signed-off-by:
Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by:
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Linus Torvalds authored
commit 0fa3ecd8 upstream. sgid directories have special semantics, making newly created files in the directory belong to the group of the directory, and newly created subdirectories will also become sgid. This is historically used for group-shared directories. But group directories writable by non-group members should not imply that such non-group members can magically join the group, so make sure to clear the sgid bit on non-directories for non-members (but remember that sgid without group execute means "mandatory locking", just to confuse things even more). Reported-by:
Jann Horn <jannh@google.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by:
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Tomasz Kramkowski authored
commit 9547837b upstream. The (1292:4745) Innomedia INNEX GENESIS/ATARI adapter needs HID_QUIRK_MULTI_INPUT to split the device up into two controllers instead of inputs from both being merged into one. Signed-off-by:
Tomasz Kramkowski <tk@the-tk.com> Acked-By:
Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by:
Jiri Kosina <jkosina@suse.cz> Signed-off-by:
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Dan Carpenter authored
commit 313db3d6 upstream. The > should be >= here so that we don't read one element beyond the end of the ep->stream_info->stream_rings[] array. Fixes: e9df17eb ("USB: xhci: Correct assumptions about number of rings per endpoint.") Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Cc: stable <stable@vger.kernel.org> Signed-off-by:
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Nico Sneck authored
commit bba57edd upstream. Corsair Strafe appears to suffer from the same issues as the Corsair Strafe RGB. Apply the same quirks (control message delay and init delay) that the RGB version has to 1b1c:1b15. With these quirks in place the keyboard works correctly upon booting the system, and no longer requires reattaching the device. Signed-off-by:
Nico Sneck <snecknico@gmail.com> Cc: stable <stable@vger.kernel.org> Signed-off-by:
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Johan Hovold authored
commit 794744ab upstream. Add missing transfer-length sanity check to the status-register completion handler to avoid leaking bits of uninitialised slab data to user space. Fixes: 3f542974 ("USB: Moschip 7840 USB-Serial Driver") Cc: stable <stable@vger.kernel.org> # 2.6.19 Signed-off-by:
Johan Hovold <johan@kernel.org> Signed-off-by:
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Jann Horn authored
commit f1e255d6 upstream. In general, accessing userspace memory beyond the length of the supplied buffer in VFS read/write handlers can lead to both kernel memory corruption (via kernel_read()/kernel_write(), which can e.g. be triggered via sys_splice()) and privilege escalation inside userspace. Fix it by using simple_read_from_buffer() instead of custom logic. Fixes: 6bc235a2 ("USB: add driver for Meywa-Denki & Kayac YUREX") Signed-off-by:
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Johan Hovold authored
commit 01b3cdfc upstream. Fix broken modem-status error handling which could lead to bits of slab data leaking to user space. Fixes: 3b36a8fd ("usb: fix uninitialized variable warning in keyspan_pda") Cc: stable <stable@vger.kernel.org> # 2.6.27 Signed-off-by:
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Olli Salonen authored
commit 367b160f upstream. There are two versions of the Qivicon Zigbee stick in circulation. This adds the second USB ID to the cp210x driver. Signed-off-by:
Olli Salonen <olli.salonen@iki.fi> Cc: stable <stable@vger.kernel.org> Signed-off-by:
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Dan Carpenter authored
commit e33eab9d upstream. The "r" variable is an int and "bufsize" is an unsigned int so the comparison is type promoted to unsigned. If usb_control_msg() returns a negative that is treated as a high positive value and the error handling doesn't work. Fixes: 2d5a9c72 ("USB: serial: ch341: fix control-message error handling") Signed-off-by:
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Hans de Goede authored
commit 240630e6 upstream. There have been several reports of LPM related hard freezes about once a day on multiple Lenovo 50 series models. Strange enough these reports where not disk model specific as LPM issues usually are and some users with the exact same disk + laptop where seeing them while other users where not seeing these issues. It turns out that enabling LPM triggers a firmware bug somewhere, which has been fixed in later BIOS versions. This commit adds a new ahci_broken_lpm() function and a new ATA_FLAG_NO_LPM for dealing with this. The ahci_broken_lpm() function contains DMI match info for the 4 models which are known to be affected by this and the DMI BIOS date field for known good BIOS versions. If the BIOS date is older then the one in the table LPM will be disabled and a warning will be printed. Note the BIOS dates are for known good versions, some older versions may work too, but we don't know for sure, the table is using dates from BIOS versions for which users have confirmed that upgrading to that version makes the problem go away. Unfortunately I've been unable to get hold of the reporter who reported that BIOS version 2.35 fixed the problems on the W541 for him. I've been able to verify the DMI_SYS_VENDOR and DMI_PRODUCT_VERSION from an older dmidecode, but I don't know the exact BIOS date as reported in the DMI. Lenovo keeps a changelog with dates in their release notes, but the dates there are the release dates not the build dates which are in DMI. So I've chosen to set the date to which we compare to one day past the release date of the 2.34 BIOS. I plan to fix this with a follow up commit once I've the necessary info. Cc: stable@vger.kernel.org Signed-off-by:
Hans de Goede <hdegoede@redhat.com> Signed-off-by:
Tejun Heo <tj@kernel.org> Signed-off-by:
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Nadav Amit authored
commit 90d72ce0 upstream. Embarrassingly, the recent fix introduced worse problem than it solved, causing the balloon not to inflate. The VM informed the hypervisor that the pages for lock/unlock are sitting in the wrong address, as it used the page that is used the uninitialized page variable. Fixes: b23220fe ("vmw_balloon: fixing double free when batching mode is off") Cc: stable@vger.kernel.org Reviewed-by:
Xavier Deguillard <xdeguillard@vmware.com> Signed-off-by:
Nadav Amit <namit@vmware.com> Signed-off-by:
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Jann Horn authored
commit a0341fc1 upstream. This read handler had a lot of custom logic and wrote outside the bounds of the provided buffer. This could lead to kernel and userspace memory corruption. Just use simple_read_from_buffer() with a stack buffer. Fixes: 1da177e4 ("Linux-2.6.12-rc2") Cc: stable@vger.kernel.org Signed-off-by:
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Paul Burton authored
commit 523402fa upstream. We currently attempt to check whether a physical address range provided to __ioremap() may be in use by the page allocator by examining the value of PageReserved for each page in the region - lowmem pages not marked reserved are presumed to be in use by the page allocator, and requests to ioremap them fail. The way we check this has been broken since commit 92923ca3 ("mm: meminit: only set page reserved in the memblock region"), because memblock will typically not have any knowledge of non-RAM pages and therefore those pages will not have the PageReserved flag set. Thus when we attempt to ioremap a region outside of RAM we incorrectly fail believing that the region is RAM that may be in use. In most cases ioremap() on MIPS will take a fast-path to use the unmapped kseg1 or xkphys virtual address spaces and never hit this path, so the only way to hit it is for a MIPS32 system to attempt to ioremap() an address range in lowmem with flags other than _CACHE_UNCACHED. Perhaps the most straightforward way to do this is using ioremap_uncached_accelerated(), which is how the problem was discovered. Fix this by making use of walk_system_ram_range() to test the address range provided to __ioremap() against only RAM pages, rather than all lowmem pages. This means that if we have a lowmem I/O region, which is very common for MIPS systems, we're free to ioremap() address ranges within it. A nice bonus is that the test is no longer limited to lowmem. The approach here matches the way x86 performed the same test after commit c81c8a1e ("x86, ioremap: Speed up check for RAM pages") until x86 moved towards a slightly more complicated check using walk_mem_res() for unrelated reasons with commit 0e4c12b4 ("x86/mm, resource: Use PAGE_KERNEL protection for ioremap of memory pages"). Signed-off-by:
Paul Burton <paul.burton@mips.com> Reported-by:
Serge Semin <fancer.lancer@gmail.com> Tested-by:
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- 11 Jul, 2018 5 commits
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Greg Kroah-Hartman authored
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Dan Carpenter authored
commit 1376b0a2 upstream. There is a '>' vs '<' typo so this loop is a no-op. Fixes: d35dcc89 ("staging: comedi: quatech_daqp_cs: fix daqp_ao_insn_write()") Signed-off-by:
Ian Abbott <abbotti@mev.co.uk> Signed-off-by:
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Jann Horn authored
commit ce00bf07 upstream. The old code would indefinitely block other users of nf_log_mutex if a userspace access in proc_dostring() blocked e.g. due to a userfaultfd region. Fix it by moving proc_dostring() out of the locked region. This is a followup to commit 266d07cb ("netfilter: nf_log: fix sleeping function called from invalid context"), which changed this code from using rcu_read_lock() to taking nf_log_mutex. Fixes: 266d07cb ("netfilter: nf_log: fix sleeping function calle[...]") Signed-off-by:
Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by:
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Tokunori Ikegami authored
commit 79ca484b upstream. Currently the functions use to check both chip ready and good. But the chip ready is not enough to check the operation status. So change this to check the chip good instead of this. About the retry functions to make sure the error handling remain it. Signed-off-by:
Tokunori Ikegami <ikegami@allied-telesis.co.jp> Reviewed-by:
Joakim Tjernlund <Joakim.Tjernlund@infinera.com> Cc: Chris Packham <chris.packham@alliedtelesis.co.nz> Cc: Brian Norris <computersforpeace@gmail.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Boris Brezillon <boris.brezillon@free-electrons.com> Cc: Marek Vasut <marek.vasut@gmail.com> Cc: Richard Weinberger <richard@nod.at> Cc: Cyrille Pitchen <cyrille.pitchen@wedev4u.fr> Cc: linux-mtd@lists.infradead.org Cc: stable@vger.kernel.org Signed-off-by:
Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by:
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Tokunori Ikegami authored
commit 45f75b8a upstream. For the word write functions it is retried for error. But it is not implemented to retry for the erase functions. To make sure for the erase functions change to retry as same. This is needed to prevent the flash erase error caused only once. It was caused by the error case of chip_good() in the do_erase_oneblock(). Also it was confirmed on the MACRONIX flash device MX29GL512FHT2I-11G. But the error issue behavior is not able to reproduce at this moment. The flash controller is parallel Flash interface integrated on BCM53003. Signed-off-by:
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