CC: [email protected] CC: [email protected] CC: [email protected] CC: [email protected] TO: "Rafael J. Wysocki" <[email protected]>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git acpica-osl head: 3537ee81aa84bbcf47f7239f1053686d71bea47d commit: 3537ee81aa84bbcf47f7239f1053686d71bea47d [3/3] ACPI: OSL: Define ACPI_OS_MAP_MEMORY_FAST_PATH() :::::: branch date: 19 hours ago :::::: commit date: 19 hours ago config: i386-randconfig-m021-20200611 (attached as .config) compiler: gcc-9 (Debian 9.3.0-13) 9.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> Reported-by: Dan Carpenter <[email protected]> smatch warnings: drivers/acpi/osl.c:1608 acpi_release_memory() warn: ignoring unreachable code. # https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git/commit/?id=3537ee81aa84bbcf47f7239f1053686d71bea47d git remote add pm https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git git remote update pm git checkout 3537ee81aa84bbcf47f7239f1053686d71bea47d vim +1608 drivers/acpi/osl.c d2d2e3c46be5d6 Heikki Krogerus 2018-06-21 1582 d2d2e3c46be5d6 Heikki Krogerus 2018-06-21 1583 /** d2d2e3c46be5d6 Heikki Krogerus 2018-06-21 1584 * acpi_release_memory - Release any mappings done to a memory region d2d2e3c46be5d6 Heikki Krogerus 2018-06-21 1585 * @handle: Handle to namespace node d2d2e3c46be5d6 Heikki Krogerus 2018-06-21 1586 * @res: Memory resource d2d2e3c46be5d6 Heikki Krogerus 2018-06-21 1587 * @level: A level that terminates the search d2d2e3c46be5d6 Heikki Krogerus 2018-06-21 1588 * d2d2e3c46be5d6 Heikki Krogerus 2018-06-21 1589 * Walks through @handle and unmaps all SystemMemory Operation Regions that d2d2e3c46be5d6 Heikki Krogerus 2018-06-21 1590 * overlap with @res and that have already been activated (mapped). d2d2e3c46be5d6 Heikki Krogerus 2018-06-21 1591 * d2d2e3c46be5d6 Heikki Krogerus 2018-06-21 1592 * This is a helper that allows drivers to place special requirements on memory d2d2e3c46be5d6 Heikki Krogerus 2018-06-21 1593 * region that may overlap with operation regions, primarily allowing them to d2d2e3c46be5d6 Heikki Krogerus 2018-06-21 1594 * safely map the region as non-cached memory. d2d2e3c46be5d6 Heikki Krogerus 2018-06-21 1595 * d2d2e3c46be5d6 Heikki Krogerus 2018-06-21 1596 * The unmapped Operation Regions will be automatically remapped next time they d2d2e3c46be5d6 Heikki Krogerus 2018-06-21 1597 * are called, so the drivers do not need to do anything else. d2d2e3c46be5d6 Heikki Krogerus 2018-06-21 1598 */ d2d2e3c46be5d6 Heikki Krogerus 2018-06-21 1599 acpi_status acpi_release_memory(acpi_handle handle, struct resource *res, d2d2e3c46be5d6 Heikki Krogerus 2018-06-21 1600 u32 level) d2d2e3c46be5d6 Heikki Krogerus 2018-06-21 1601 { d2d2e3c46be5d6 Heikki Krogerus 2018-06-21 1602 if (!(res->flags & IORESOURCE_MEM)) d2d2e3c46be5d6 Heikki Krogerus 2018-06-21 1603 return AE_TYPE; d2d2e3c46be5d6 Heikki Krogerus 2018-06-21 1604 d2d2e3c46be5d6 Heikki Krogerus 2018-06-21 1605 return acpi_walk_namespace(ACPI_TYPE_REGION, handle, level, d2d2e3c46be5d6 Heikki Krogerus 2018-06-21 1606 acpi_deactivate_mem_region, NULL, res, NULL); 3537ee81aa84bb Rafael J. Wysocki 2020-06-10 1607 3537ee81aa84bb Rafael J. Wysocki 2020-06-10 @1608 acpi_release_unused_memory_mappings(); d2d2e3c46be5d6 Heikki Krogerus 2018-06-21 1609 } d2d2e3c46be5d6 Heikki Krogerus 2018-06-21 1610 EXPORT_SYMBOL_GPL(acpi_release_memory); d2d2e3c46be5d6 Heikki Krogerus 2018-06-21 1611 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected]
.config.gz
Description: application/gzip
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