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2018-02-06lib/test_sort.c: add module unload supportPravin Shedge
test_sort.c performs array-based and linked list sort test. Code allows to compile either as a loadable modules or builtin into the kernel. Current code is not allow to unload the test_sort.ko module after successful completion. This patch adds support to unload the "test_sort.ko" module by adding module_exit support. Previous patch was implemented auto unload support by returning -EAGAIN from module_init() function on successful case, but this approach is not ideal. The auto-unload might seem like a nice optimization, but it encourages inconsistent behaviour. And behaviour that is different from all other normal modules. Link: http://lkml.kernel.org/r/1513967133-6843-1-git-send-email-pravin.shedge4linux@gmail.com Signed-off-by: Pravin Shedge <pravin.shedge4linux@gmail.com> Cc: Kostenzer Felix <fkostenzer@live.at> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-05-08Revert "lib/test_sort.c: make it explicitly non-modular"Geert Uytterhoeven
Patch series "lib: add module support to sort tests". This patch series allows to compile the array-based and linked list sort test code either to loadable modules, or builtin into the kernel. It's very valuable to have modular tests, so you can run them just by insmodding the test modules, instead of needing a separate kernel that runs them at boot. This patch (of 3): This reverts commit 8893f519330bb073a49c5b4676fce4be6f1be15d. It's very valuable to have modular tests, so you can run them just by insmodding the test modules, instead of needing a separate kernel that runs them at boot. Link: http://lkml.kernel.org/r/1488287219-15832-2-git-send-email-geert@linux-m68k.org Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-24lib/test_sort.c: make it explicitly non-modularPaul Gortmaker
The Kconfig currently controlling compilation of this code is: lib/Kconfig.debug:config TEST_SORT lib/Kconfig.debug: bool "Array-based sort test" ...meaning that it currently is not being built as a module by anyone. Lets remove the couple traces of modular infrastructure use, so that when reading the code there is no doubt it is builtin-only. Since module_init translates to device_initcall in the non-modular case, the init ordering becomes slightly earlier when we change it to use subsys_initcall as done here. However, since it is a self contained test, this shouldn't be an issue and subsys_initcall seems like a better fit for this particular case. We also delete the MODULE_LICENSE tag since that information is now contained at the top of the file in the comments. Link: http://lkml.kernel.org/r/20170124225608.7319-1-paul.gortmaker@windriver.com Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Kostenzer Felix <fkostenzer@live.at> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-24lib: add CONFIG_TEST_SORT to enable self-test of sort()Kostenzer Felix
Along with the addition made to Kconfig.debug, the prior existing but permanently disabled test function has been slightly refactored. Patch has been tested using QEMU 2.1.2 with a .config obtained through 'make defconfig' (x86_64) and manually enabling the option. [arnd@arndb.de: move sort self-test into a separate file] Link: http://lkml.kernel.org/r/20170112110657.3123790-1-arnd@arndb.de Link: http://lkml.kernel.org/r/HE1PR09MB0394B0418D504DCD27167D4FD49B0@HE1PR09MB0394.eurprd09.prod.outlook.com Signed-off-by: Kostenzer Felix <fkostenzer@live.at> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>