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2020-05-28Merge branch 'v4.19/standard/base' into v4.19/standard/preempt-rt/baseBruce Ashfield
2020-05-28Merge tag 'v4.19.125' into v4.19/standard/baseBruce Ashfield
This is the 4.19.125 stable release # gpg: Signature made Wed 27 May 2020 11:45:05 AM EDT # gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E # gpg: Can't check signature: No public key
2020-05-28Merge branch 'v4.19/standard/base' into v4.19/standard/preempt-rt/baseBruce Ashfield
2020-05-28Merge tag 'v4.19.123' into v4.19/standard/baseBruce Ashfield
This is the 4.19.123 stable release # gpg: Signature made Thu 14 May 2020 01:57:25 AM EDT # gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E # gpg: Can't check signature: No public key
2020-05-28Merge branch 'v4.19/standard/base' into v4.19/standard/preempt-rt/baseBruce Ashfield
2020-05-28Merge tag 'v4.19.122' into v4.19/standard/baseBruce Ashfield
This is the 4.19.122 stable release # gpg: Signature made Sun 10 May 2020 04:30:13 AM EDT # gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E # gpg: Can't check signature: No public key
2020-05-28Merge branch 'v4.19/standard/base' into v4.19/standard/preempt-rt/baseBruce Ashfield
2020-05-28Merge tag 'v4.19.119' into v4.19/standard/baseBruce Ashfield
This is the 4.19.119 stable release # gpg: Signature made Wed 29 Apr 2020 10:31:36 AM EDT # gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E # gpg: Can't check signature: No public key
2020-05-27gcc-common.h: Update for GCC 10Frédéric Pierret (fepitre)
[ Upstream commit c7527373fe28f97d8a196ab562db5589be0d34b9 ] Remove "params.h" include, which has been dropped in GCC 10. Remove is_a_helper() macro, which is now defined in gimple.h, as seen when running './scripts/gcc-plugin.sh g++ g++ gcc': In file included from <stdin>:1: ./gcc-plugins/gcc-common.h:852:13: error: redefinition of ‘static bool is_a_helper<T>::test(U*) [with U = const gimple; T = const ggoto*]’ 852 | inline bool is_a_helper<const ggoto *>::test(const_gimple gs) | ^~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from ./gcc-plugins/gcc-common.h:125, from <stdin>:1: /usr/lib/gcc/x86_64-redhat-linux/10/plugin/include/gimple.h:1037:1: note: ‘static bool is_a_helper<T>::test(U*) [with U = const gimple; T = const ggoto*]’ previously declared here 1037 | is_a_helper <const ggoto *>::test (const gimple *gs) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ Add -Wno-format-diag to scripts/gcc-plugins/Makefile to avoid meaningless warnings from error() formats used by plugins: scripts/gcc-plugins/structleak_plugin.c: In function ‘int plugin_init(plugin_name_args*, plugin_gcc_version*)’: scripts/gcc-plugins/structleak_plugin.c:253:12: warning: unquoted sequence of 2 consecutive punctuation characters ‘'-’ in format [-Wformat-diag] 253 | error(G_("unknown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Frédéric Pierret (fepitre) <frederic.pierret@qubes-os.org> Link: https://lore.kernel.org/r/20200407113259.270172-1-frederic.pierret@qubes-os.org [kees: include -Wno-format-diag for plugin builds] Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-05-14scripts/decodecode: fix trapping instruction formattingIvan Delalande
commit e08df079b23e2e982df15aa340bfbaf50f297504 upstream. If the trapping instruction contains a ':', for a memory access through segment registers for example, the sed substitution will insert the '*' marker in the middle of the instruction instead of the line address: 2b: 65 48 0f c7 0f cmpxchg16b %gs:*(%rdi) <-- trapping instruction I started to think I had forgotten some quirk of the assembly syntax before noticing that it was actually coming from the script. Fix it to add the address marker at the right place for these instructions: 28: 49 8b 06 mov (%r14),%rax 2b:* 65 48 0f c7 0f cmpxchg16b %gs:(%rdi) <-- trapping instruction 30: 0f 94 c0 sete %al Fixes: 18ff44b189e2 ("scripts/decodecode: make faulting insn ptr more robust") Signed-off-by: Ivan Delalande <colona@arista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Borislav Petkov <bp@suse.de> Link: http://lkml.kernel.org/r/20200419223653.GA31248@visor Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-05-10scripts/config: allow colons in option strings for sedJeremie Francois (on alpha)
[ Upstream commit e461bc9f9ab105637b86065d24b0b83f182d477c ] Sed broke on some strings as it used colon as a separator. I made it more robust by using \001, which is legit POSIX AFAIK. E.g. ./config --set-str CONFIG_USBNET_DEVADDR "de:ad:be:ef:00:01" failed with: sed: -e expression #1, char 55: unknown option to `s' Signed-off-by: Jeremie Francois (on alpha) <jeremie.francois@gmail.com> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-04-29kconfig: qconf: Fix a few alignment issuesMauro Carvalho Chehab
[ Upstream commit 60969f02f07ae1445730c7b293c421d179da729c ] There are a few items with wrong alignments. Solve them. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-04-14Merge branch 'v4.19/standard/base' into v4.19/standard/preempt-rt/baseBruce Ashfield
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
2020-04-14Merge tag 'v4.19.114' into v4.19/standard/baseBruce Ashfield
This is the 4.19.114 stable release # gpg: Signature made Thu 02 Apr 2020 09:28:25 AM EDT # gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E # gpg: Can't check signature: No public key
2020-04-14Merge branch 'v4.19/standard/base' into v4.19/standard/preempt-rt/baseBruce Ashfield
2020-04-14Merge tag 'v4.19.113' into v4.19/standard/baseBruce Ashfield
This is the 4.19.113 stable release # gpg: Signature made Wed 25 Mar 2020 03:24:36 AM EDT # gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E # gpg: Can't check signature: No public key
2020-04-02scripts/dtc: Remove redundant YYLOC global declarationDirk Mueller
commit e33a814e772cdc36436c8c188d8c42d019fda639 upstream. gcc 10 will default to -fno-common, which causes this error at link time: (.text+0x0): multiple definition of `yylloc'; dtc-lexer.lex.o (symbol from plugin):(.text+0x0): first defined here This is because both dtc-lexer as well as dtc-parser define the same global symbol yyloc. Before with -fcommon those were merged into one defintion. The proper solution would be to to mark this as "extern", however that leads to: dtc-lexer.l:26:16: error: redundant redeclaration of 'yylloc' [-Werror=redundant-decls] 26 | extern YYLTYPE yylloc; | ^~~~~~ In file included from dtc-lexer.l:24: dtc-parser.tab.h:127:16: note: previous declaration of 'yylloc' was here 127 | extern YYLTYPE yylloc; | ^~~~~~ cc1: all warnings being treated as errors which means the declaration is completely redundant and can just be dropped. Signed-off-by: Dirk Mueller <dmueller@suse.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au> [robh: cherry-pick from upstream] Cc: stable@vger.kernel.org Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-25kbuild: Disable -Wpointer-to-enum-castNathan Chancellor
commit 82f2bc2fcc0160d6f82dd1ac64518ae0a4dd183f upstream. Clang's -Wpointer-to-int-cast deviates from GCC in that it warns when casting to enums. The kernel does this in certain places, such as device tree matches to set the version of the device being used, which allows the kernel to avoid using a gigantic union. https://elixir.bootlin.com/linux/v5.5.8/source/drivers/ata/ahci_brcm.c#L428 https://elixir.bootlin.com/linux/v5.5.8/source/drivers/ata/ahci_brcm.c#L402 https://elixir.bootlin.com/linux/v5.5.8/source/include/linux/mod_devicetable.h#L264 To avoid a ton of false positive warnings, disable this particular part of the warning, which has been split off into a separate diagnostic so that the entire warning does not need to be turned off for clang. It will be visible under W=1 in case people want to go about fixing these easily and enabling the warning treewide. Cc: stable@vger.kernel.org Link: https://github.com/ClangBuiltLinux/linux/issues/887 Link: https://github.com/llvm/llvm-project/commit/2a41b31fcdfcb67ab7038fc2ffb606fd50b83a84 Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-03-25parse-maintainers: Mark as executableJonathan Neuschäfer
[ Upstream commit 611d61f9ac99dc9e1494473fb90117a960a89dfa ] This makes the script more convenient to run. Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-03-11Merge branch 'v4.19/standard/base' into v4.19/standard/preempt-rt/baseBruce Ashfield
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
2020-03-11Merge tag 'v4.19.106' into v4.19/standard/baseBruce Ashfield
This is the 4.19.106 stable release # gpg: Signature made Mon 24 Feb 2020 02:35:24 AM EST # gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E # gpg: Can't check signature: No public key
2020-03-11Merge branch 'v4.19/standard/base' into v4.19/standard/preempt-rt/baseBruce Ashfield
2020-03-11Merge tag 'v4.19.103' into v4.19/standard/baseBruce Ashfield
This is the 4.19.103 stable release # gpg: Signature made Tue 11 Feb 2020 07:34:20 AM EST # gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E # gpg: Can't check signature: No public key
2020-03-11Merge branch 'v4.19/standard/base' into v4.19/standard/preempt-rt/baseBruce Ashfield
2020-03-11Merge tag 'v4.19.100' into v4.19/standard/baseBruce Ashfield
This is the 4.19.100 stable release # gpg: Signature made Wed 29 Jan 2020 10:44:17 AM EST # gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E # gpg: Can't check signature: No public key
2020-03-11Merge branch 'v4.19/standard/base' into v4.19/standard/preempt-rt/baseBruce Ashfield
2020-03-11Merge tag 'v4.19.95' into v4.19/standard/baseBruce Ashfield
This is the 4.19.95 stable release # gpg: Signature made Sun 12 Jan 2020 06:17:30 AM EST # gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E # gpg: Can't check signature: No public key
2020-03-11Merge branch 'v4.19/standard/base' into v4.19/standard/preempt-rt/baseBruce Ashfield
2020-03-11Merge tag 'v4.19.93' into v4.19/standard/baseBruce Ashfield
This is the 4.19.93 stable release # gpg: Signature made Sat 04 Jan 2020 01:15:12 PM EST # gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E # gpg: Can't check signature: No public key
2020-03-11Merge branch 'v4.19/standard/base' into v4.19/standard/preempt-rt/baseBruce Ashfield
2020-03-11Merge tag 'v4.19.89' into v4.19/standard/baseBruce Ashfield
This is the 4.19.89 stable release # gpg: Signature made Fri 13 Dec 2019 02:53:00 AM EST # gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E # gpg: Can't check signature: No public key
2020-03-11Merge branch 'v4.19/standard/base' into v4.19/standard/preempt-rt/baseBruce Ashfield
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
2020-03-11Merge tag 'v4.19.88' into v4.19/standard/baseBruce Ashfield
This is the 4.19.88 stable release # gpg: Signature made Thu 05 Dec 2019 03:38:25 AM EST # gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E # gpg: Can't check signature: No public key
2020-02-24kbuild: use -S instead of -E for precise cc-option test in KconfigMasahiro Yamada
[ Upstream commit 3bed1b7b9d79ca40e41e3af130931a3225e951a3 ] Currently, -E (stop after the preprocessing stage) is used to check whether the given compiler flag is supported. While it is faster than -S (or -c), it can be false-positive. You need to run the compilation proper to check the flag more precisely. For example, -E and -S disagree about the support of "--param asan-instrument-allocas=1". $ gcc -Werror --param asan-instrument-allocas=1 -E -x c /dev/null -o /dev/null $ echo $? 0 $ gcc -Werror --param asan-instrument-allocas=1 -S -x c /dev/null -o /dev/null cc1: error: invalid --param name ‘asan-instrument-allocas’; did you mean ‘asan-instrument-writes’? $ echo $? 1 Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-02-24kconfig: fix broken dependency in randconfig-generated .configMasahiro Yamada
[ Upstream commit c8fb7d7e48d11520ad24808cfce7afb7b9c9f798 ] Running randconfig on arm64 using KCONFIG_SEED=0x40C5E904 (e.g. on v5.5) produces the .config with CONFIG_EFI=y and CONFIG_CPU_BIG_ENDIAN=y, which does not meet the !CONFIG_CPU_BIG_ENDIAN dependency. This is because the user choice for CONFIG_CPU_LITTLE_ENDIAN vs CONFIG_CPU_BIG_ENDIAN is set by randomize_choice_values() after the value of CONFIG_EFI is calculated. When this happens, the has_changed flag should be set. Currently, it takes the result from the last iteration. It should accumulate all the results of the loop. Fixes: 3b9a19e08960 ("kconfig: loop as long as we changed some symbols in randconfig") Reported-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-02-11scripts/find-unused-docs: Fix massive false positivesGeert Uytterhoeven
commit 1630146db2111412e7524d05d812ff8f2c75977e upstream. scripts/find-unused-docs.sh invokes scripts/kernel-doc to find out if a source file contains kerneldoc or not. However, as it passes the no longer supported "-text" option to scripts/kernel-doc, the latter prints out its help text, causing all files to be considered containing kerneldoc. Get rid of these false positives by removing the no longer supported "-text" option from the scripts/kernel-doc invocation. Cc: stable@vger.kernel.org # 4.16+ Fixes: b05142675310d2ac ("scripts: kernel-doc: get rid of unused output formats") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20200127093107.26401-1-geert+renesas@glider.be Signed-off-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-29ARM: 8950/1: ftrace/recordmcount: filter relocation typesAlex Sverdlin
commit 927d780ee371d7e121cea4fc7812f6ef2cea461c upstream. Scenario 1, ARMv7 ================= If code in arch/arm/kernel/ftrace.c would operate on mcount() pointer the following may be generated: 00000230 <prealloc_fixed_plts>: 230: b5f8 push {r3, r4, r5, r6, r7, lr} 232: b500 push {lr} 234: f7ff fffe bl 0 <__gnu_mcount_nc> 234: R_ARM_THM_CALL __gnu_mcount_nc 238: f240 0600 movw r6, #0 238: R_ARM_THM_MOVW_ABS_NC __gnu_mcount_nc 23c: f8d0 1180 ldr.w r1, [r0, #384] ; 0x180 FTRACE currently is not able to deal with it: WARNING: CPU: 0 PID: 0 at .../kernel/trace/ftrace.c:1979 ftrace_bug+0x1ad/0x230() ... CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.4.116-... #1 ... [<c0314e3d>] (unwind_backtrace) from [<c03115e9>] (show_stack+0x11/0x14) [<c03115e9>] (show_stack) from [<c051a7f1>] (dump_stack+0x81/0xa8) [<c051a7f1>] (dump_stack) from [<c0321c5d>] (warn_slowpath_common+0x69/0x90) [<c0321c5d>] (warn_slowpath_common) from [<c0321cf3>] (warn_slowpath_null+0x17/0x1c) [<c0321cf3>] (warn_slowpath_null) from [<c038ee9d>] (ftrace_bug+0x1ad/0x230) [<c038ee9d>] (ftrace_bug) from [<c038f1f9>] (ftrace_process_locs+0x27d/0x444) [<c038f1f9>] (ftrace_process_locs) from [<c08915bd>] (ftrace_init+0x91/0xe8) [<c08915bd>] (ftrace_init) from [<c0885a67>] (start_kernel+0x34b/0x358) [<c0885a67>] (start_kernel) from [<00308095>] (0x308095) ---[ end trace cb88537fdc8fa200 ]--- ftrace failed to modify [<c031266c>] prealloc_fixed_plts+0x8/0x60 actual: 44:f2:e1:36 ftrace record flags: 0 (0) expected tramp: c03143e9 Scenario 2, ARMv4T ================== ftrace: allocating 14435 entries in 43 pages ------------[ cut here ]------------ WARNING: CPU: 0 PID: 0 at kernel/trace/ftrace.c:2029 ftrace_bug+0x204/0x310 CPU: 0 PID: 0 Comm: swapper Not tainted 4.19.5 #1 Hardware name: Cirrus Logic EDB9302 Evaluation Board [<c0010a24>] (unwind_backtrace) from [<c000ecb0>] (show_stack+0x20/0x2c) [<c000ecb0>] (show_stack) from [<c03c72e8>] (dump_stack+0x20/0x30) [<c03c72e8>] (dump_stack) from [<c0021c18>] (__warn+0xdc/0x104) [<c0021c18>] (__warn) from [<c0021d7c>] (warn_slowpath_null+0x4c/0x5c) [<c0021d7c>] (warn_slowpath_null) from [<c0095360>] (ftrace_bug+0x204/0x310) [<c0095360>] (ftrace_bug) from [<c04dabac>] (ftrace_init+0x3b4/0x4d4) [<c04dabac>] (ftrace_init) from [<c04cef4c>] (start_kernel+0x20c/0x410) [<c04cef4c>] (start_kernel) from [<00000000>] ( (null)) ---[ end trace 0506a2f5dae6b341 ]--- ftrace failed to modify [<c000c350>] perf_trace_sys_exit+0x5c/0xe8 actual: 1e:ff:2f:e1 Initializing ftrace call sites ftrace record flags: 0 (0) expected tramp: c000fb24 The analysis for this problem has been already performed previously, refer to the link below. Fix the above problems by allowing only selected reloc types in __mcount_loc. The list itself comes from the legacy recordmcount.pl script. Link: https://lore.kernel.org/lkml/56961010.6000806@pengutronix.de/ Cc: stable@vger.kernel.org Fixes: ed60453fa8f8 ("ARM: 6511/1: ftrace: add ARM support for C version of recordmcount") Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com> Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-12kconfig: don't crash on NULL expressions in expr_eq()Thomas Hebb
[ Upstream commit 272a72103012862e3a24ea06635253ead0b6e808 ] NULL expressions are taken to always be true, as implemented by the expr_is_yes() macro and by several other functions in expr.c. As such, they ought to be valid inputs to expr_eq(), which compares two expressions. Signed-off-by: Thomas Hebb <tommyhebb@gmail.com> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-01-04scripts/kallsyms: fix definitely-lost memory leakMasahiro Yamada
[ Upstream commit 21915eca088dc271c970e8351290e83d938114ac ] build_initial_tok_table() overwrites unused sym_entry to shrink the table size. Before the entry is overwritten, table[i].sym must be freed since it is malloc'ed data. This fixes the 'definitely lost' report from valgrind. I ran valgrind against x86_64_defconfig of v5.4-rc8 kernel, and here is the summary: [Before the fix] LEAK SUMMARY: definitely lost: 53,184 bytes in 2,874 blocks [After the fix] LEAK SUMMARY: definitely lost: 0 bytes in 0 blocks Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-12-13modpost: skip ELF local symbols during section mismatch checkPaul Walmsley
[ Upstream commit a4d26f1a0958bb1c2b60c6f1e67c6f5d43e2647b ] During development of a serial console driver with a gcc 8.2.0 toolchain for RISC-V, the following modpost warning appeared: ---- WARNING: vmlinux.o(.data+0x19b10): Section mismatch in reference from the variable .LANCHOR1 to the function .init.text:sifive_serial_console_setup() The variable .LANCHOR1 references the function __init sifive_serial_console_setup() If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable: *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console ---- ".LANCHOR1" is an ELF local symbol, automatically created by gcc's section anchor generation code: https://gcc.gnu.org/onlinedocs/gccint/Anchored-Addresses.html https://gcc.gnu.org/git/?p=gcc.git;a=blob;f=gcc/varasm.c;h=cd9591a45617464946dcf9a126dde277d9de9804;hb=9fb89fa845c1b2e0a18d85ada0b077c84508ab78#l7473 This was verified by compiling the kernel with -fno-section-anchors and observing that the ".LANCHOR1" ELF local symbol disappeared, and modpost no longer warned about the section mismatch. The serial driver code idiom triggering the warning is standard Linux serial driver practice that has a specific whitelist inclusion in modpost.c. I'm neither a modpost nor an ELF expert, but naively, it doesn't seem useful for modpost to report section mismatch warnings caused by ELF local symbols by default. Local symbols have compiler-generated names, and thus bypass modpost's whitelisting algorithm, which relies on the presence of a non-autogenerated symbol name. This increases the likelihood that false positive warnings will be generated (as in the above case). Thus, disable section mismatch reporting on ELF local symbols. The rationale here is similar to that of commit 2e3a10a1551d ("ARM: avoid ARM binutils leaking ELF local symbols") and of similar code already present in modpost.c: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/scripts/mod/modpost.c?h=v4.19-rc4&id=7876320f88802b22d4e2daf7eb027dd14175a0f8#n1256 This third version of the patch implements a suggestion from Masahiro Yamada <yamada.masahiro@socionext.com> to restructure the code as an additional pattern matching step inside secref_whitelist(), and further improves the patch description. Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com> Signed-off-by: Paul Walmsley <paul@pwsan.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-12-13kbuild: disable dtc simple_bus_reg warnings by defaultRob Herring
[ Upstream commit 70523a3ce5ff928faa43bb2cad554dc63438e3e7 ] The updated version of dtc has a bug fix for simple_bus_reg warnings and lots of warnings are generated now. So disable this warning by default. Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-12-05scripts/gdb: fix debugging modules compiled with hot/cold partitioningIlya Leoshkevich
[ Upstream commit 8731acc5068eb3f422a45c760d32198175c756f8 ] gcc's -freorder-blocks-and-partition option makes it group frequently and infrequently used code in .text.hot and .text.unlikely sections respectively. At least when building modules on s390, this option is used by default. gdb assumes that all code is located in .text section, and that .text section is located at module load address. With such modules this is no longer the case: there is code in .text.hot and .text.unlikely, and either of them might precede .text. Fix by explicitly telling gdb the addresses of code sections. It might be tempting to do this for all sections, not only the ones in the white list. Unfortunately, gdb appears to have an issue, when telling it about e.g. loadable .note.gnu.build-id section causes it to think that non-loadable .note.Linux section is loaded at address 0, which in turn causes NULL pointers to be resolved to bogus symbols. So keep using the white list approach for the time being. Link: http://lkml.kernel.org/r/20191028152734.13065-1-iii@linux.ibm.com Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com> Cc: Kieran Bingham <kbingham@kernel.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-11-17Merge branch 'v4.19/standard/base' into v4.19/standard/preempt-rt/baseBruce Ashfield
2019-11-17Merge tag 'v4.19.82' into v4.19/standard/baseBruce Ashfield
This is the 4.19.82 stable release # gpg: Signature made Wed 06 Nov 2019 07:06:32 AM EST # gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E # gpg: Can't check signature: No public key
2019-11-17Merge branch 'v4.19/standard/base' into v4.19/standard/preempt-rt/baseBruce Ashfield
2019-11-17Merge tag 'v4.19.81' into v4.19/standard/baseBruce Ashfield
This is the 4.19.81 stable release # gpg: Signature made Tue 29 Oct 2019 04:20:10 AM EDT # gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E # gpg: Can't check signature: No public key
2019-11-06scripts/setlocalversion: Improve -dirty check with git-status ↵Brian Norris
--no-optional-locks [ Upstream commit ff64dd4857303dd5550faed9fd598ac90f0f2238 ] git-diff-index does not refresh the index for you, so using it for a "-dirty" check can give misleading results. Commit 6147b1cf19651 ("scripts/setlocalversion: git: Make -dirty check more robust") tried to fix this by switching to git-status, but it overlooked the fact that git-status also writes to the .git directory of the source tree, which is definitely not kosher for an out-of-tree (O=) build. That is getting reverted. Fortunately, git-status now supports avoiding writing to the index via the --no-optional-locks flag, as of git 2.14. It still calculates an up-to-date index, but it avoids writing it out to the .git directory. So, let's retry the solution from commit 6147b1cf19651 using this new flag first, and if it fails, we assume this is an older version of git and just use the old git-diff-index method. It's hairy to get the 'grep -vq' (inverted matching) correct by stashing the output of git-status (you have to be careful about the difference betwen "empty stdin" and "blank line on stdin"), so just pipe the output directly to grep and use a regex that's good enough for both the git-status and git-diff-index version. Cc: Christian Kujau <lists@nerdbynature.de> Cc: Guenter Roeck <linux@roeck-us.net> Suggested-by: Alexander Kapshuk <alexander.kapshuk@gmail.com> Signed-off-by: Brian Norris <briannorris@chromium.org> Tested-by: Genki Sky <sky@genki.is> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-10-29namespace: fix namespace.pl script to support relative pathsJacob Keller
[ Upstream commit 82fdd12b95727640c9a8233c09d602e4518e71f7 ] The namespace.pl script does not work properly if objtree is not set to an absolute path. The do_nm function is run from within the find function, which changes directories. Because of this, appending objtree, $File::Find::dir, and $source, will return a path which is not valid from the current directory. This used to work when objtree was set to an absolute path when using "make namespacecheck". It appears to have not worked when calling ./scripts/namespace.pl directly. This behavior was changed in 7e1c04779efd ("kbuild: Use relative path for $(objtree)", 2014-05-14) Rather than fixing the Makefile to set objtree to an absolute path, just fix namespace.pl to work when srctree and objtree are relative. Also fix the script to use an absolute path for these by default. Use the File::Spec module for this purpose. It's been part of perl 5 since 5.005. The curdir() function is used to get the current directory when the objtree and srctree aren't set in the environment. rel2abs() is used to convert possibly relative objtree and srctree environment variables to absolute paths. Finally, the catfile() function is used instead of string appending paths together, since this is more robust when joining paths together. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Tested-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-10-10Merge branch 'v4.19/standard/base' into v4.19/standard/preempt-rt/baseBruce Ashfield
2019-10-10Merge tag 'v4.19.77' into v4.19/standard/baseBruce Ashfield
This is the 4.19.77 stable release # gpg: Signature made Sat 05 Oct 2019 07:10:18 AM EDT # gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E # gpg: Can't check signature: No public key