- 23 Apr, 2018 18 commits
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Quytelda Kahja authored
The "_t" suffix is not needed for structure names in this driver, and is a reflection of an older typedef system that is no longer in place. Replace all occurences of 'struct hostif_mib_value_t' with 'struct hostif_mib_value'. Signed-off-by:
Quytelda Kahja <quytelda@tamalin.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Quytelda Kahja authored
The "_t" suffix is not needed for structure names in this driver, and is a reflection of an older typedef system that is no longer in place. Replace all occurences of 'struct hostif_mib_get_request_t' with 'struct hostif_mib_get_request'. Signed-off-by:
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Quytelda Kahja authored
The "_t" suffix is not needed for structure names in this driver, and is a reflection of an older typedef system that is no longer in place. Replace all occurences of 'struct channel_list_t' with 'struct channel_list'. Signed-off-by:
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Quytelda Kahja authored
'struct hostif_data_indication_t' is not used in this driver. Remove 'struct hostif_data_indication_t'. Signed-off-by:
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Quytelda Kahja authored
The "_t" suffix is not needed for structure names in this driver, and is a reflection of an older typedef system that is no longer in place. Replace all occurences of 'struct hostif_data_request_t' with 'struct hostif_data_request'. Signed-off-by:
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Quytelda Kahja authored
The "_t" suffix is not needed for structure names in this driver, and is a reflection of an older typedef system that is no longer in place. Replace all occurences of 'struct pmk_cache_t' with 'struct pmk_cache'. Signed-off-by:
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Quytelda Kahja authored
The "_t" suffix is not needed for structure names in this driver, and is a reflection of an older typedef system that is no longer in place. Replace all occurences of 'struct rsn_mode_t' with 'struct rsn_mode'. Signed-off-by:
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Quytelda Kahja authored
The "_t" suffix is not needed for structure names in this driver, and is a reflection of an older typedef system that is no longer in place. Replace all occurences of 'struct wpa_suite_t' with 'struct wpa_suite'. Signed-off-by:
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Quytelda Kahja authored
This macro, provided in 'linux/kernel.h', will calculate the size more succinctly than a division operation. Signed-off-by:
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Sergio Paracuellos authored
This commit replaces IS_HIF_CONF macro with is_11b_rate inline function to improve readability. Signed-off-by:
Sergio Paracuellos <sergio.paracuellos@gmail.com> Signed-off-by:
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Sergio Paracuellos authored
This commit replaces IS_HIF_IND macro with is_11b_rate inline function to improve readability. Signed-off-by:
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Sergio Paracuellos authored
This commit replaces IS_OFDM_EXT_RATE macro with is_11b_rate inline function to improve readability. It also fix a checkpatch script warning because a line with more than 80 spaces. Signed-off-by:
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Sergio Paracuellos authored
This commit replaces IS_11BG_RATE macro with is_11b_rate inline function to improve readability. It also fix a checkpatch script warning because a line with more than 80 spaces. Signed-off-by:
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Sergio Paracuellos authored
This commit replaces IS_OFDM_RATE macro with is_ofdm_rate inline function. This also fix checkpatch warning about more than 80 spaces line. Signed-off-by:
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Sergio Paracuellos authored
This commit replaces IS_11B_RATE macro with is_11b_rate inline function to improve readability. It also fix a checkpatch script warning because a line with more than 80 spaces. Signed-off-by:
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Razvan Stefanescu authored
The tag control information (TCI) part of the VLAN header contains several fields, including PCP (priority code point) and PVID (port VLAN id). Current implementation uses function ethsw_port_set_tci() to set the PVID value and mistakenly overwrites the rest of the TCI fields with 0, including PCP which by default has a value of 7. Fix this by adding support to retrieve TCI set in hardware. Read existing value and only updated the PVID fields, leaving others unchanged. Signed-off-by:
Razvan Stefanescu <razvan.stefanescu@nxp.com> Signed-off-by:
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Nguyen Phan Quang Minh authored
Local variable irq is not used. Remove it. Signed-off-by: Nguyen Phan Quang Minh<minhnpq16@gmail.com> Signed-off-by: -
Geert Uytterhoeven authored
Emma Mobile is a Renesas ARM SoC. Since commit 9b5ba0df ("ARM: shmobile: Introduce ARCH_RENESAS") is ARCH_RENESAS a more appropriate platform dependency than the legacy ARCH_SHMOBILE, hence use the former. This will allow to drop ARCH_SHMOBILE on ARM in the near future. Signed-off-by:
Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by:
Simon Horman <horms+renesas@verge.net.au> Signed-off-by:
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- 16 Apr, 2018 5 commits
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linuxLinus Torvalds authored
Pull more btrfs updates from David Sterba: "We have queued a few more fixes (error handling, log replay, softlockup) and the rest is SPDX updates that touche almost all files so the diffstat is long" * tag 'for-4.17-part2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: btrfs: Only check first key for committed tree blocks btrfs: add SPDX header to Kconfig btrfs: replace GPL boilerplate by SPDX -- sources btrfs: replace GPL boilerplate by SPDX -- headers Btrfs: fix loss of prealloc extents past i_size after fsync log replay Btrfs: clean up resources during umount after trans is aborted btrfs: Fix possible softlock on single core machines Btrfs: bail out on error during replay_dir_deletes Btrfs: fix NULL pointer dereference in log_dir_items
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git://git.samba.org/sfrench/cifs-2.6Linus Torvalds authored
Pull cifs fixes from Steve French: "SMB3 fixes, a few for stable, and some important cleanup work from Ronnie of the smb3 transport code" * tag '4.17-rc1SMB3-Fixes' of git://git.samba.org/sfrench/cifs-2.6: cifs: change validate_buf to validate_iov cifs: remove rfc1002 hardcoded constants from cifs_discard_remaining_data() cifs: Change SMB2_open to return an iov for the error parameter cifs: add resp_buf_size to the mid_q_entry structure smb3.11: replace a 4 with server->vals->header_preamble_size cifs: replace a 4 with server->vals->header_preamble_size cifs: add pdu_size to the TCP_Server_Info structure SMB311: Improve checking of negotiate security contexts SMB3: Fix length checking of SMB3.11 negotiate request CIFS: add ONCE flag for cifs_dbg type cifs: Use ULL suffix for 64-bit constant SMB3: Log at least once if tree connect fails during reconnect cifs: smb2pdu: Fix potential NULL pointer dereference
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds authored
Pull SCSI fixes from James Bottomley: "This is a set of minor (and safe changes) that didn't make the initial pull request plus some bug fixes. The status handling code is actually a running regression from the previous merge window which had an incomplete fix (now reverted) and most of the remaining bug fixes are for problems older than the current merge window" [ Side note: this merge also takes the base kernel git repository to 6+ million objects for the first time. Technically we hit it a couple of merges ago already if you count all the tag objects, but now it reaches 6M+ objects reachable from HEAD. I was joking around that that's when I should switch to 5.0, because 3.0 happened at the 2M mark, and 4.0 happened at 4M objects. But probably not, even if numerology is about as good a reason as any. - Linus ] * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: devinfo: Add Microsoft iSCSI target to 1024 sector blacklist scsi: cxgb4i: silence overflow warning in t4_uld_rx_handler() scsi: dpt_i2o: Use after free in I2ORESETCMD ioctl scsi: core: Make scsi_result_to_blk_status() recognize CONDITION MET scsi: core: Rename __scsi_error_from_host_byte() into scsi_result_to_blk_status() Revert "scsi: core: return BLK_STS_OK for DID_OK in __scsi_error_from_host_byte()" scsi: aacraid: Insure command thread is not recursively stopped scsi: qla2xxx: Correct setting of SAM_STAT_CHECK_CONDITION scsi: qla2xxx: correctly shift host byte scsi: qla2xxx: Fix race condition between iocb timeout and initialisation scsi: qla2xxx: Avoid double completion of abort command scsi: qla2xxx: Fix small memory leak in qla2x00_probe_one on probe failure scsi: scsi_dh: Don't look for NULL devices handlers by name scsi: core: remove redundant assignment to shost->use_blk_mq -
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuildLinus Torvalds authored
Pull more Kbuild updates from Masahiro Yamada: - pass HOSTLDFLAGS when compiling single .c host programs - build genksyms lexer and parser files instead of using shipped versions - rename *-asn1.[ch] to *.asn1.[ch] for suffix consistency - let the top .gitignore globally ignore artifacts generated by flex, bison, and asn1_compiler - let the top Makefile globally clean artifacts generated by flex, bison, and asn1_compiler - use safer .SECONDARY marker instead of .PRECIOUS to prevent intermediate files from being removed - support -fmacro-prefix-map option to make __FILE__ a relative path - fix # escaping to prepare for the future GNU Make release - clean up deb-pkg by using debian tools instead of handrolled source/changes generation - improve rpm-pkg portability by supporting kernel-install as a fallback of new-kernel-pkg - extend Kconfig listnewconfig target to provide more information * tag 'kbuild-v4.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: kconfig: extend output of 'listnewconfig' kbuild: rpm-pkg: use kernel-install as a fallback for new-kernel-pkg Kbuild: fix # escaping in .cmd files for future Make kbuild: deb-pkg: split generating packaging and build kbuild: use -fmacro-prefix-map to make __FILE__ a relative path kbuild: mark $(targets) as .SECONDARY and remove .PRECIOUS markers kbuild: rename *-asn1.[ch] to *.asn1.[ch] kbuild: clean up *-asn1.[ch] patterns from top-level Makefile .gitignore: move *-asn1.[ch] patterns to the top-level .gitignore kbuild: add %.dtb.S and %.dtb to 'targets' automatically kbuild: add %.lex.c and %.tab.[ch] to 'targets' automatically genksyms: generate lexer and parser during build instead of shipping kbuild: clean up *.lex.c and *.tab.[ch] patterns from top-level Makefile .gitignore: move *.lex.c *.tab.[ch] patterns to the top-level .gitignore kbuild: use HOSTLDFLAGS for single .c executables
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- 15 Apr, 2018 8 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 fixes from Thomas Gleixner: "A set of fixes and updates for x86: - Address a swiotlb regression which was caused by the recent DMA rework and made driver fail because dma_direct_supported() returned false - Fix a signedness bug in the APIC ID validation which caused invalid APIC IDs to be detected as valid thereby bloating the CPU possible space. - Fix inconsisten config dependcy/select magic for the MFD_CS5535 driver. - Fix a corruption of the physical address space bits when encryption has reduced the address space and late cpuinfo updates overwrite the reduced bit information with the original value. - Dominiks syscall rework which consolidates the architecture specific syscall functions so all syscalls can be wrapped with the same macros. This allows to switch x86/64 to struct pt_regs based syscalls. Extend the clearing of user space controlled registers in the entry patch to the lower registers" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/apic: Fix signedness bug in APIC ID validity checks x86/cpu: Prevent cpuinfo_x86::x86_phys_bits adjustment corruption x86/olpc: Fix inconsistent MFD_CS5535 configuration swiotlb: Use dma_direct_supported() for swiotlb_ops syscalls/x86: Adapt syscall_wrapper.h to the new syscall stub naming convention syscalls/core, syscalls/x86: Rename struct pt_regs-based sys_*() to __x64_sys_*() syscalls/core, syscalls/x86: Clean up compat syscall stub naming convention syscalls/core, syscalls/x86: Clean up syscall stub naming convention syscalls/x86: Extend register clearing on syscall entry to lower registers syscalls/x86: Unconditionally enable 'struct pt_regs' based syscalls on x86_64 syscalls/x86: Use 'struct pt_regs' based syscall calling for IA32_EMULATION and x32 syscalls/core: Prepare CONFIG_ARCH_HAS_SYSCALL_WRAPPER=y for compat syscalls syscalls/x86: Use 'struct pt_regs' based syscall calling convention for 64-bit syscalls syscalls/core: Introduce CONFIG_ARCH_HAS_SYSCALL_WRAPPER=y x86/syscalls: Don't pointlessly reload the system call number x86/mm: Fix documentation of module mapping range with 4-level paging x86/cpuid: Switch to 'static const' specifier -
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 pti updates from Thomas Gleixner: "Another series of PTI related changes: - Remove the manual stack switch for user entries from the idtentry code. This debloats entry by 5k+ bytes of text. - Use the proper types for the asm/bootparam.h defines to prevent user space compile errors. - Use PAGE_GLOBAL for !PCID systems to gain back performance - Prevent setting of huge PUD/PMD entries when the entries are not leaf entries otherwise the entries to which the PUD/PMD points to and are populated get lost" * 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/pgtable: Don't set huge PUD/PMD on non-leaf entries x86/pti: Leave kernel text global for !PCID x86/pti: Never implicitly clear _PAGE_GLOBAL for kernel image x86/pti: Enable global pages for shared areas x86/mm: Do not forbid _PAGE_RW before init for __ro_after_init x86/mm: Comment _PAGE_GLOBAL mystery x86/mm: Remove extra filtering in pageattr code x86/mm: Do not auto-massage page protections x86/espfix: Document use of _PAGE_GLOBAL x86/mm: Introduce "default" kernel PTE mask x86/mm: Undo double _PAGE_PSE clearing x86/mm: Factor out pageattr _PAGE_GLOBAL setting x86/entry/64: Drop idtentry's manual stack switch for user entries x86/uapi: Fix asm/bootparam.h userspace compilation errors -
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull scheduler fixes from Thomas Gleixner: "A few scheduler fixes: - Prevent a bogus warning vs. runqueue clock update flags in do_sched_rt_period_timer() - Simplify the helper functions which handle requests for skipping the runqueue clock updat. - Do not unlock the tunables mutex in the error path of the cpu frequency scheduler utils. Its not held. - Enforce proper alignement for 'struct util_est' in sched_avg to prevent a misalignment fault on IA64" * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/core: Force proper alignment of 'struct util_est' sched/core: Simplify helpers for rq clock update skip requests sched/rt: Fix rq->clock_update_flags < RQCF_ACT_SKIP warning sched/cpufreq/schedutil: Fix error path mutex unlock -
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull more perf updates from Thomas Gleixner: "A rather large set of perf updates: Kernel: - Fix various initialization issues - Prevent creating [ku]probes for not CAP_SYS_ADMIN users Tooling: - Show only failing syscalls with 'perf trace --failure' (Arnaldo Carvalho de Melo) e.g: See what 'openat' syscalls are failing: # perf trace --failure -e openat 762.323 ( 0.007 ms): VideoCapture/4566 openat(dfd: CWD, filename: /dev/video2) = -1 ENOENT No such file or directory <SNIP N /dev/videoN open attempts... sigh, where is that improvised camera lid?!? > 790.228 ( 0.008 ms): VideoCapture/4566 openat(dfd: CWD, filename: /dev/video63) = -1 ENOENT No such file or directory ^C# - Show information about the event (freq, nr_samples, total period/nr_events) in the annotate --tui and --stdio2 'perf annotate' output, similar to the first line in the 'perf report --tui', but just for the samples for a the annotated symbol (Arnaldo Carvalho de Melo) - Introduce 'perf version --build-options' to show what features were linked, aliased as well as a shorter 'perf -vv' (Jin Yao) - Add a "dso_size" sort order (Kim Phillips) - Remove redundant ')' in the tracepoint output in 'perf trace' (Changbin Du) - Synchronize x86's cpufeatures.h, no effect on toolss (Arnaldo Carvalho de Melo) - Show group details on the title line in the annotate browser and 'perf annotate --stdio2' output, so that the per-event columns can have headers (Arnaldo Carvalho de Melo) - Fixup vertical line separating metrics from instructions and cleaning unused lines at the bottom, both in the annotate TUI browser (Arnaldo Carvalho de Melo) - Remove duplicated 'samples' in lost samples warning in 'perf report' (Arnaldo Carvalho de Melo) - Synchronize i915_drm.h, silencing the perf build process, automagically adding support for the new DRM_I915_QUERY ioctl (Arnaldo Carvalho de Melo) - Make auxtrace_queues__add_buffer() allocate struct buffer, from a patchkit already applied (Adrian Hunter) - Fix the --stdio2/TUI annotate output to include group details, be it for a recorded '{a,b,f}' explicit event group or when forcing group display using 'perf report --group' for a set of events not recorded as a group (Arnaldo Carvalho de Melo) - Fix display artifacts in the ui browser (base class for the annotate and main report/top TUI browser) related to the extra title lines work (Arnaldo Carvalho de Melo) - perf auxtrace refactorings, leftovers from a previously partially processed patchset (Adrian Hunter) - Fix the builtin clang build (Sandipan Das, Arnaldo Carvalho de Melo) - Synchronize i915_drm.h, silencing a perf build warning and in the process automagically adding support for a new ioctl command (Arnaldo Carvalho de Melo) - Fix a strncpy issue in uprobe tracing" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (36 commits) perf/core: Need CAP_SYS_ADMIN to create k/uprobe with perf_event_open() tracing/uprobe_event: Fix strncpy corner case perf/core: Fix perf_uprobe_init() perf/core: Fix perf_kprobe_init() perf/core: Fix use-after-free in uprobe_perf_close() perf tests clang: Fix function name for clang IR test perf clang: Add support for recent clang versions perf tools: Fix perf builds with clang support perf tools: No need to include namespaces.h in util.h perf hists browser: Remove leftover from row returned from refresh perf hists browser: Show extra_title_lines in the 'D' debug hotkey perf auxtrace: Make auxtrace_queues__add_buffer() do CPU filtering tools headers uapi: Synchronize i915_drm.h perf report: Remove duplicated 'samples' in lost samples warning perf ui browser: Fixup cleaning unused lines at the bottom perf annotate browser: Fixup vertical line separating metrics from instructions perf annotate: Show group details on the title line perf auxtrace: Make auxtrace_queues__add_buffer() allocate struct buffer perf/x86/intel: Move regs->flags EXACT bit init perf trace: Remove redundant ')' ... -
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 EFI bootup fixlet from Thomas Gleixner: "A single fix for an early boot warning caused by invoking this_cpu_has() before SMP initialization" * 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mm: Fix bogus warning during EFI bootup, use boot_cpu_has() instead of this_cpu_has() in build_cr3_noflush()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull irq affinity fixes from Thomas Gleixner: - Fix error path handling in the affinity spreading code - Make affinity spreading smarter to avoid issues on systems which claim to have hotpluggable CPUs while in fact they can't hotplug anything. So instead of trying to spread the vectors (and thereby the associated device queues) to all possibe CPUs, spread them on all present CPUs first. If there are left over vectors after that first step they are spread among the possible, but not present CPUs which keeps the code backwards compatible for virtual decives and NVME which allocate a queue per possible CPU, but makes the spreading smarter for devices which have less queues than possible or present CPUs. * 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: genirq/affinity: Spread irq vectors among present CPUs as far as possible genirq/affinity: Allow irq spreading from a given starting point genirq/affinity: Move actual irq vector spreading into a helper function genirq/affinity: Rename *node_to_possible_cpumask as *node_to_cpumask genirq/affinity: Don't return with empty affinity masks on error -
git://github.com/openrisc/linuxLinus Torvalds authored
Pull OpenRISC fixlet from Stafford Horne: "Just one small thing here, it came in a while back but I didnt have anything in my 4.16 queue, still its the only thing for 4.17 so sending it alone. Small cleanup: remove unused __ARCH_HAVE_MMU define" * tag 'for-linus' of git://github.com/openrisc/linux: openrisc: remove unused __ARCH_HAVE_MMU define
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linuxLinus Torvalds authored
Pull powerpc fixes from Michael Ellerman: - Fix crashes when loading modules built with a different CONFIG_RELOCATABLE value by adding CONFIG_RELOCATABLE to vermagic. - Fix busy loops in the OPAL NVRAM driver if we get certain error conditions from firmware. - Remove tlbie trace points from KVM code that's called in real mode, because it causes crashes. - Fix checkstops caused by invalid tlbiel on Power9 Radix. - Ensure the set of CPU features we "know" are always enabled is actually the minimal set when we build with support for firmware supplied CPU features. Thanks to: Aneesh Kumar K.V, Anshuman Khandual, Nicholas Piggin. * tag 'powerpc-4.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/64s: Fix CPU_FTRS_ALWAYS vs DT CPU features powerpc/mm/radix: Fix checkstops caused by invalid tlbiel KVM: PPC: Book3S HV: trace_tlbie must not be called in realmode powerpc/8xx: Fix build with hugetlbfs enabled powerpc/powernv: Fix OPAL NVRAM driver OPAL_BUSY loops powerpc/powernv: define a standard delay for OPAL_BUSY type retry loops powerpc/fscr: Enable interrupts earlier before calling get_user() powerpc/64s: Fix section mismatch warnings from setup_rfi_flush() powerpc/modules: Fix crashes by adding CONFIG_RELOCATABLE to vermagic
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- 14 Apr, 2018 9 commits
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Linus Torvalds authored
Merge yet more updates from Andrew Morton: - various hotfixes - kexec_file updates and feature work * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (27 commits) kernel/kexec_file.c: move purgatories sha256 to common code kernel/kexec_file.c: allow archs to set purgatory load address kernel/kexec_file.c: remove mis-use of sh_offset field during purgatory load kernel/kexec_file.c: remove unneeded variables in kexec_purgatory_setup_sechdrs kernel/kexec_file.c: remove unneeded for-loop in kexec_purgatory_setup_sechdrs kernel/kexec_file.c: split up __kexec_load_puragory kernel/kexec_file.c: use read-only sections in arch_kexec_apply_relocations* kernel/kexec_file.c: search symbols in read-only kexec_purgatory kernel/kexec_file.c: make purgatory_info->ehdr const kernel/kexec_file.c: remove checks in kexec_purgatory_load include/linux/kexec.h: silence compile warnings kexec_file, x86: move re-factored code to generic side x86: kexec_file: clean up prepare_elf64_headers() x86: kexec_file: lift CRASH_MAX_RANGES limit on crash_mem buffer x86: kexec_file: remove X86_64 dependency from prepare_elf64_headers() x86: kexec_file: purge system-ram walking from prepare_elf64_headers() kexec_file,x86,powerpc: factor out kexec_file_ops functions kexec_file: make use of purgatory optional proc: revalidate misc dentries mm, slab: reschedule cache_reap() on the same CPU ...
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Philipp Rudo authored
The code to verify the new kernels sha digest is applicable for all architectures. Move it to common code. One problem is the string.c implementation on x86. Currently sha256 includes x86/boot/string.h which defines memcpy and memset to be gcc builtins. By moving the sha256 implementation to common code and changing the include to linux/string.h both functions are no longer defined. Thus definitions have to be provided in x86/purgatory/string.c Link: http://lkml.kernel.org/r/20180321112751.22196-12-prudo@linux.vnet.ibm.comSigned-off-by:
Philipp Rudo <prudo@linux.vnet.ibm.com> Acked-by:
Dave Young <dyoung@redhat.com> Cc: AKASHI Takahiro <takahiro.akashi@linaro.org> Cc: Eric Biederman <ebiederm@xmission.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com> Cc: Vivek Goyal <vgoyal@redhat.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Philipp Rudo authored
For s390 new kernels are loaded to fixed addresses in memory before they are booted. With the current code this is a problem as it assumes the kernel will be loaded to an 'arbitrary' address. In particular, kexec_locate_mem_hole searches for a large enough memory region and sets the load address (kexec_bufer->mem) to it. Luckily there is a simple workaround for this problem. By returning 1 in arch_kexec_walk_mem, kexec_locate_mem_hole is turned off. This allows the architecture to set kbuf->mem by hand. While the trick works fine for the kernel it does not for the purgatory as here the architectures don't have access to its kexec_buffer. Give architectures access to the purgatories kexec_buffer by changing kexec_load_purgatory to take a pointer to it. With this change architectures have access to the buffer and can edit it as they need. A nice side effect of this change is that we can get rid of the purgatory_info->purgatory_load_address field. As now the information stored there can directly be accessed from kbuf->mem. Link: http://lkml.kernel.org/r/20180321112751.22196-11-prudo@linux.vnet.ibm.comSigned-off-by:
Martin Schwidefsky <schwidefsky@de.ibm.com> Acked-by:
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Philipp Rudo authored
The current code uses the sh_offset field in purgatory_info->sechdrs to store a pointer to the current load address of the section. Depending whether the section will be loaded or not this is either a pointer into purgatory_info->purgatory_buf or kexec_purgatory. This is not only a violation of the ELF standard but also makes the code very hard to understand as you cannot tell if the memory you are using is read-only or not. Remove this misuse and store the offset of the section in pugaroty_info->purgatory_buf in sh_offset. Link: http://lkml.kernel.org/r/20180321112751.22196-10-prudo@linux.vnet.ibm.comSigned-off-by:
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Philipp Rudo authored
The main loop currently uses quite a lot of variables to update the section headers. Some of them are unnecessary. So clean them up a little. Link: http://lkml.kernel.org/r/20180321112751.22196-9-prudo@linux.vnet.ibm.comSigned-off-by:
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Philipp Rudo authored
To update the entry point there is an extra loop over all section headers although this can be done in the main loop. So move it there and eliminate the extra loop and variable to store the 'entry section index'. Also, in the main loop, move the usual case, i.e. non-bss section, out of the extra if-block. Link: http://lkml.kernel.org/r/20180321112751.22196-8-prudo@linux.vnet.ibm.comSigned-off-by:
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Philipp Rudo authored
When inspecting __kexec_load_purgatory you find that it has two tasks 1) setting up the kexec_buffer for the new kernel and, 2) setting up pi->sechdrs for the final load address. The two tasks are independent of each other. To improve readability split up __kexec_load_purgatory into two functions, one for each task, and call them directly from kexec_load_purgatory. Link: http://lkml.kernel.org/r/20180321112751.22196-7-prudo@linux.vnet.ibm.comSigned-off-by:
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Philipp Rudo authored
When the relocations are applied to the purgatory only the section the relocations are applied to is writable. The other sections, i.e. the symtab and .rel/.rela, are in read-only kexec_purgatory. Highlight this by marking the corresponding variables as 'const'. While at it also change the signatures of arch_kexec_apply_relocations* to take section pointers instead of just the index of the relocation section. This removes the second lookup and sanity check of the sections in arch code. Link: http://lkml.kernel.org/r/20180321112751.22196-6-prudo@linux.vnet.ibm.comSigned-off-by:
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Philipp Rudo authored
The stripped purgatory does not contain a symtab. So when looking for symbols this is done in read-only kexec_purgatory. Highlight this by marking the corresponding variables as 'const'. Link: http://lkml.kernel.org/r/20180321112751.22196-5-prudo@linux.vnet.ibm.comSigned-off-by:
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