- 25 Jan, 2018 2 commits
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Petr Vorel authored
Reverse dependency expressions can get rather unwieldy, especially if a symbol is selected by more than a handful of other symbols. I.e. it's possible to have near endless expressions like: A && B && !C || D || F && (G || H) || [...] Chop these expressions into actually readable chunks: - A && B && !C - D - F && (G || H) - [...] I.e. transform the top level OR tokens into newlines and prepend each line with a minus. This makes the "Selected by:" and "Implied by:" blurb much easier to read. This is done only if there is more than one top level OR. "Depends on:" and "Range :" were deliberately left as they are. Based on idea from Paul Bolle. Suggested-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Petr Vorel <petr.vorel@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Masahiro Yamada authored
The 'oldnoconfig' is really confusing due to its counter-intuitive name. It was renamed by commit fb16d891 ("kconfig: replace 'oldnoconfig' with 'olddefconfig', and keep the old name as an alias"). The 'oldnoconfig' has been kept as an alias for enough period of time, and finally I am planning to remove it. I will give people a little more time for migration. Meanwhile, the following message will be displayed if oldnoconfig is used. WARNING: "oldnoconfig" target will be removed after Linux 4.19 Please use "olddefconfig" instead, which is an alias. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Ulf Magnusson <ulfalizer@gmail.com>
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- 21 Jan, 2018 20 commits
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Yaakov Selkowitz authored
The C-based config programs are properly guarded from a missing (or, currently, external) libintl.h by the HOST_EXTRACFLAGS check, but this does not help the C++-based qconf. Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Ulf Magnusson authored
It is not obvious that the last two cases refer to menus and ifs, respectively, in the conditional that sets 'parentdep'. Automatic submenu creation is done later, so the parent can't be a symbol here. No functional changes. Only comments added. Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Ulf Magnusson authored
It is not obvious that this might refer to an 'if', making the code pretty cryptic: if (menu->list && (!menu->prompt || !menu->prompt->text)) { Kconfig keeps the 'if' menu nodes even after flattening. Reflect that in the example to be accurate. No functional changes. Only comments added. Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Ulf Magnusson authored
It's easy to miss that choices are special-cased to pass on their mode as the parent dependency. No functional changes. Only comments added. Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Ulf Magnusson authored
Not obvious, especially if you don't already know how choices are implemented. No functional changes. Only comments added. Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Masahiro Yamada authored
Kconfig was the only user of these. With Kconfig converted to use the default 'yy' prefix, we do not need them any more. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Ulf Magnusson <ulfalizer@gmail.com>
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Masahiro Yamada authored
Flex and Bison provide an option to change the prefix of globally- visible symbols. This is useful to link multiple lexers and/or parsers into the same executable. However, Kconfig (and any other host programs in kernel) uses a single lexer and parser. I do not see a good reason to change the default 'yy' prefix. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Ulf Magnusson <ulfalizer@gmail.com>
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Masahiro Yamada authored
conf_unsaved is initialized by conf_read_simple(), but it is possible to move it to conf_read() so that it can be a local variable. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Masahiro Yamada authored
Sparse reports: warning: symbol 'xfgets' was not declared. Should it be static? It is declared as static, but it is missing in the definition part. Move the definition up and remove the forward declaration. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Masahiro Yamada authored
Sparse reports: warning: symbol 'input_mode' was not declared. Should it be static? Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Ulf Magnusson authored
Avoids mistakes like in the following real-world example, where only the final help string ("Say Y...") was used. This particular example was fixed in commit 561b29e4 ("media: fix media Kconfig help syntax issues"). config DVB_NETUP_UNIDVB ... select DVB_CXD2841ER if MEDIA_SUBDRV_AUTOSELECT ---help--- Support for NetUP PCI express Universal DVB card. help Say Y when you want to support NetUP Dual Universal DVB card ... This now prints the following warning: drivers/media/pci/netup_unidvb:13: warning: 'DVB_NETUP_UNIDVB' defined with more than one help text -- only the last one will be used Also free() any extra help strings. Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Masahiro Yamada authored
No more users of this keyword. Drop it according to the notice by commit 6341e62b ("kconfig: use bool instead of boolean for type definition attributes"). Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Luis R. Rodriguez <mcgrof@kernel.org>
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Masahiro Yamada authored
Commit 6341e62b ("kconfig: use bool instead of boolean for type definition attributes") did treewide replacement of 'boolean', and also mentioned the keyword 'boolean' would be dropped later on. Some years have passed, but it has not happened yet. Meanwhile, some new instances have come up. I am really going to drop this keyword. I need to do the replacement once again. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Ulf Magnusson authored
menu_end_entry() is empty and completely unused as far as I can tell: $ git log -G menu_end_entry --oneline a02f0570 [PATCH] kconfig: improve error handling in the parser 1da177e4 Linux-2.6.12-rc2 Last one is the initial Git commit, where menu_end_entry() is empty as well. I couldn't find anything that redefined it on Google either. It might be a debugging helper for setting a breakpoint after each config, menuconfig, and comment is parsed. IMO it hurts more than it helps in that case by making the parsing code look more complicated at a glance than it really is, and I suspect it doesn't get used much. Tested by running the Kconfiglib test suite, which indirectly verifies that the .config files generated by the C implementation for each defconfig file in the kernel stays the same. Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Ulf Magnusson authored
Many of these functions are quite the head scratchers if you don't know what they're trying to do. Document them. Also make it clear which functions rewrite expressions in-place and which return new expressions. This prevents memory errors. No functional changes. Only comments added. Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Ulf Magnusson authored
It's tricky to figure out what it does (and how) without staring at the code for a long time. Document it to make it more transparent. No functional changes. Only comments added. Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Ulf Magnusson authored
When propagating dependencies from parents after parsing, an expression node is allocated if the parent symbol is a 'choice'. This node was never freed. Outline of leak: if (sym && sym_is_choice(sym)) { ... *Allocate (in this case only)* parentdep = expr_alloc_symbol(sym); } else if (parent->prompt) parentdep = parent->prompt->visible.expr; else parentdep = parent->dep; for (menu = parent->list; menu; menu = menu->next) { ... *Copy* basedep = expr_alloc_and(expr_copy(parentdep), basedep); ... } *parentdep lost if the parent is a choice!* Fix by freeing 'parentdep' after the loop if the parent symbol is a choice. Note that this only frees the expression node and not the choice symbol itself. Summary from Valgrind on 'menuconfig' (ARCH=x86) before the fix: LEAK SUMMARY: definitely lost: 1,608 bytes in 67 blocks ... Summary after the fix: LEAK SUMMARY: definitely lost: 0 bytes in 0 blocks ... Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Ulf Magnusson authored
Only the E_NOT operand and not the E_NOT node itself was freed, due to accidentally returning too early in expr_free(). Outline of leak: switch (e->type) { ... case E_NOT: expr_free(e->left.expr); return; ... } *Never reached, 'e' leaked* free(e); Fix by changing the 'return' to a 'break'. Summary from Valgrind on 'menuconfig' (ARCH=x86) before the fix: LEAK SUMMARY: definitely lost: 44,448 bytes in 1,852 blocks ... Summary after the fix: LEAK SUMMARY: definitely lost: 1,608 bytes in 67 blocks ... Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Ulf Magnusson authored
expr_trans_compare() always allocates and returns a new expression, giving the following leak outline: ... *Allocate* basedep = expr_trans_compare(basedep, E_UNEQUAL, &symbol_no); ... for (menu = parent->next; menu; menu = menu->next) { ... *Copy* dep2 = expr_copy(basedep); ... *Free copy* expr_free(dep2); } *basedep lost!* Fix by freeing 'basedep' after the loop. Summary from Valgrind on 'menuconfig' (ARCH=x86) before the fix: LEAK SUMMARY: definitely lost: 344,376 bytes in 14,349 blocks ... Summary after the fix: LEAK SUMMARY: definitely lost: 44,448 bytes in 1,852 blocks ... Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Ulf Magnusson authored
If a 'mainmenu' entry appeared in the Kconfig files, two things would leak: - The 'struct property' allocated for the default "Linux Kernel Configuration" prompt. - The string for the T_WORD/T_WORD_QUOTE prompt after the T_MAINMENU token, allocated on the heap in zconf.l. To fix it, introduce a new 'no_mainmenu_stmt' nonterminal that matches if there's no 'mainmenu' and adds the default prompt. That means the prompt only gets allocated once regardless of whether there's a 'mainmenu' statement or not, and managing it becomes simple. Summary from Valgrind on 'menuconfig' (ARCH=x86) before the fix: LEAK SUMMARY: definitely lost: 344,568 bytes in 14,352 blocks ... Summary after the fix: LEAK SUMMARY: definitely lost: 344,440 bytes in 14,350 blocks ... Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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- 10 Jan, 2018 3 commits
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Ulf Magnusson authored
The following strings would leak before this change: - option env="LEAKED" - option defconfig_list="LEAKED" These come in the form of T_WORD tokens and are always allocated on the heap in zconf.l. Free them. Summary from Valgrind on 'menuconfig' (ARCH=x86) before the fix: LEAK SUMMARY: definitely lost: 344,616 bytes in 14,355 blocks ... Summary after the fix: LEAK SUMMARY: definitely lost: 344,568 bytes in 14,352 blocks ... Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Ulf Magnusson authored
The 'source_stmt' nonterminal takes a 'prompt', which consists of either a T_WORD or a T_WORD_QUOTE, both of which are always allocated on the heap in zconf.l and need to have their associated strings freed. Free them. The existing code already makes sure to always copy the string, but add a warning to sym_expand_string_value() to make it clear that the string must be copied, just in case. Summary from Valgrind on 'menuconfig' (ARCH=x86) before the fix: LEAK SUMMARY: definitely lost: 387,504 bytes in 15,545 blocks ... Summary after the fix: LEAK SUMMARY: definitely lost: 344,616 bytes in 14,355 blocks ... Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Ulf Magnusson authored
Prior to this fix, zconf.y did not free symbol names from zconf.l in these contexts: - After T_CONFIG ('config LEAKED') - After T_MENUCONFIG ('menuconfig LEAKED') - After T_SELECT ('select LEAKED') - After T_IMPLY ('imply LEAKED') - After T_DEFAULT in a choice ('default LEAKED') All of these come in the form of T_WORD tokens, which always have their associated string allocated on the heap in zconf.l and need to be freed. Fix by introducing a new nonterminal 'nonconst_symbol' which takes a T_WORD, fetches the symbol, and then frees the T_WORD string. The already existing 'symbol' nonterminal works the same way but also accepts T_WORD_QUOTE, corresponding to a constant symbol. T_WORD_QUOTE should not be accepted in any of the contexts above, so the 'symbol' nonterminal can't be reused here. Fetching the symbol in 'nonconst_symbol' also removes a bunch of sym_lookup() calls from actions. Summary from Valgrind on 'menuconfig' (ARCH=x86) before the fix: LEAK SUMMARY: definitely lost: 711,571 bytes in 37,756 blocks ... Summary after the fix: LEAK SUMMARY: definitely lost: 387,504 bytes in 15,545 blocks ... Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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- 16 Dec, 2017 4 commits
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Masahiro Yamada authored
zconf.lex.c is generated by flex, zconf.tab.c by bison. Instead of running flex and bison during the kernel building, we conventionally version-control those artifacts with _shipped suffix. It is tedious to manually regenerate them every time we change the real sources, zconf.l and zconf.y. Remove the _shipped files and switch over to build-time generation of the intermediate C files. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Masahiro Yamada authored
In Linux build system convention, pre-generated files are version- controlled with a "_shipped" suffix. During the kernel building, they are simply shipped (copied) removing the suffix. This approach can reduce external tool dependency for the kernel build, but it is tedious to manually regenerate such artifacts from developers' point of view. (We need to do "make REGENERATE_PARSERS=1" every time we touch real source files such as *.l, *.y) Some months ago, I sent out RFC patches to run flex, bison, and gperf during the build. In the review and test, Linus noticed gperf-3.1 had changed the lookup function prototype. Then, the use of gperf in kernel was entirely removed by commit bb3290d9 ("Remove gperf usage from toolchain"). This time, I tested several versions of flex and bison, and I was not hit by any compatibility issue except a flaw in flex-2.6.3; if you generate lexer for dtc and genksyms with flex-2.6.3, you will see "yywrap redefined" warning. This was not intentional, but a bug, fixed by flex-2.6.4. Otherwise, both flex and bison look fairly stable for a long time. This commit prepares some build rules to remove the _shipped files. Also, document minimal requirement for flex and bison. Rationale for the minimal version: The -Wmissing-prototypes option of GCC warns "no previous prototype" for lexers generated by flex-2.5.34 or older, so I chose 2.5.35 as the required version for flex. Flex-2.5.35 was released in 2008. Bison looks more stable. I did not see any problem with bison-2.0, released in 2004. I did not test bison-1.x, but bison-2.0 should be old enough. Tested flex versions: 2.5.35 2.5.36 2.5.37 2.5.39 2.6.0 2.6.1 2.6.2 2.6.3 (*) 2.6.4 (*) flex-2.6.3 causes "yywrap redefined" warning Tested bison versions: 2.0 2.1 2.2 2.3 2.4 2.4.1 2.5.1 2.6 2.6.1 2.6.2 2.6.3 2.6.4 2.6.5 2.7 2.7.1 3.0 3.0.1 3.0.2 3.0.3 3.0.4 Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Masahiro Yamada authored
Allow users to use their favorite lexer / parser generators. This is useful for me to test various flex and bison versions. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Masahiro Yamada authored
Commit 1c199f28 ("kbuild: document recursive dependency limitation / resolution") probably intended to show a hint along with "recursive dependency detected!" error, but it missed to add {...} guard, and the hint is displayed in every loop of the dep_stack traverse, annoyingly. This error was detected by GCC's -Wmisleading-indentation when switching to build-time generation of lexer/parser. scripts/kconfig/symbol.c: In function ‘sym_check_print_recursive’: scripts/kconfig/symbol.c:1150:3: warning: this ‘if’ clause does not guard... [-Wmisleading-indentation] if (stack->sym == last_sym) ^~ scripts/kconfig/symbol.c:1153:4: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘if’ fprintf(stderr, "For a resolution refer to Documentation/kbuild/kconfig-language.txt\n"); ^~~~~~~ I could simply add {...} to surround the three fprintf(), but I rather chose to move the hint after the loop to make the whole message readable. Fixes: 1c199f28 ("kbuild: document recursive dependency limitation / resolution" Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Luis R. Rodriguez <mcgrof@kernel.org>
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- 14 Dec, 2017 3 commits
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Ulf Magnusson authored
Kconfig currently doesn't handle 'm' appearing in a Kconfig file before the modules symbol is defined (the symbol with 'option modules'). The problem is the following code, which runs during parsing: /* change 'm' into 'm' && MODULES */ if (e->left.sym == &symbol_mod) return expr_alloc_and(e, expr_alloc_symbol(modules_sym)); If the modules symbol has not yet been defined, modules_sym is NULL, giving an invalid expression. Here is a test file where both BEFORE_1 and BEFORE_2 trigger a segfault. If the modules symbol is removed, all symbols trigger segfaults. config BEFORE_1 def_tristate y if m if m config BEFORE_2 def_tristate y endif config MODULES def_bool y option modules config AFTER_1 def_tristate y if m if m config AFTER_2 def_tristate y endif Fix the issue by rewriting 'm' in menu_finalize() instead. This function runs after parsing and is the proper place to do it. The following existing code in conf_parse() in zconf.y ensures that the modules symbol exists at that point: if (!modules_sym) modules_sym = sym_find( "n" ); ... menu_finalize(&rootmenu); The following tests were done to ensure no functional changes for configurations that don't reference 'm' before the modules symbol: - zconfdump(stdout) was run with ARCH=x86 and ARCH=arm before and after the change and verified to produce identical output. This function prints all symbols, choices, and menus together with their properties and their dependency expressions. A rewritten 'm' appears as 'm && MODULES'. A small annoyance is that the assert(len != 0) in xfwrite() needs to be disabled in order to use zconfdump(), because it chokes on e.g. 'default ""'. - The Kconfiglib test suite was run to indirectly verify that alldefconfig, allyesconfig, allnoconfig, and all defconfigs in the kernel still generate the same final .config. - Valgrind was used to check for memory errors and (new) memory leaks. Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Ulf Magnusson authored
menu_finalize() is one of the more opaque parts of Kconfig, and I need to make some changes to it to fix an issue related to modules. Add some comments related to expression rewriting and dependency propagation as a review aid. They will also help other people trying to understand the code. Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Ulf Magnusson authored
More directly describes the only thing it does. Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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- 12 Dec, 2017 1 commit
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Ulf Magnusson authored
Looks like a change to a comment in zconf.y was never committed, because the updated version only appears it zconf.tab.c_shipped. Update the comment in zconf.y to match. Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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- 07 Dec, 2017 3 commits
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Ulf Magnusson authored
Visibility and choices in particular might be a bit tricky to figure out. Also fix existing comment to point out that P_MENU is also used for menus. Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Ulf Magnusson authored
Understanding what it represents helps a lot when reading the code, and it's not obvious, so document it. The ROOT_MENU flag is only set and tested by the gconf and qconf front ends, so leave it undocumented here. The obvious guess for what it means is correct. Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Ulf Magnusson authored
This will catch mistakes like in the following real-world example, where a "CONFIG_" prefix snuck in, making an undefined symbol the default: choice prompt "Compiler optimization level" default CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE config CC_OPTIMIZE_FOR_PERFORMANCE ... config CC_OPTIMIZE_FOR_SIZE ... endchoice This now prints the following warning: init/Kconfig:1036:warning: choice default symbol 'CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE' is not contained in the choice Cases where the default symbol belongs to the wrong choice are also detected. (The mistake is harmless here: Since the default symbol is not visible, the choice falls back on using the first visible symbol as the default, which is CC_OPTIMIZE_FOR_PERFORMANCE, as intended.) Discovered while playing around with Kconfiglib (https://github.com/ulfalizer/Kconfiglib). Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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- 03 Dec, 2017 4 commits
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Linus Torvalds authored
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git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds authored
Pull ARM fix from Russell King: "Just one fix this time around, for the late commit in the merge window that triggered a problem with qemu. Qemu is apparently also going to receive a fix for the discovered issue" * 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: avoid faulting on qemu
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linuxLinus Torvalds authored
Pull i2c fixes from Wolfram Sang: "Here are two bugfixes for I2C, fixing a memleak in the core and irq allocation for i801. Also three bugfixes for the at24 eeprom driver which Bartosz collected while taking over maintainership for this driver" * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: eeprom: at24: check at24_read/write arguments eeprom: at24: fix reading from 24MAC402/24MAC602 eeprom: at24: correctly set the size for at24mac402 i2c: i2c-boardinfo: fix memory leaks on devinfo i2c: i801: Fix Failed to allocate irq -2147483648 error
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Linus Torvalds authored
Merge tag 'hwmon-for-linus-v4.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull hwmon fixes from Guenter Roeck: "Fixes: - Drop reference to obsolete maintainer tree - Fix overflow bug in pmbus driver - Fix SMBUS timeout problem in jc42 driver For the SMBUS timeout handling, we had a brief discussion if this should be considered a bug fix or a feature. Peter says "it fixes real problems where the application misbehave due to faulty content when reading from an eeprom", and he needs the patch in his company's v4.14 images. This is good enough for me and warrants backport to stable kernels" * tag 'hwmon-for-linus-v4.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: hwmon: (jc42) optionally try to disable the SMBUS timeout hwmon: (pmbus) Use 64bit math for DIRECT format values hwmon: Drop reference to Jean's tree
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