* [pm:acpica-osl 3/3] drivers/acpi/osl.c:1608 acpi_release_memory() warn: ignoring unreachable code.
@ 2020-06-11 7:26 kernel test robot
0 siblings, 0 replies; 4+ messages in thread
From: kernel test robot @ 2020-06-11 7:26 UTC (permalink / raw)
To: kbuild
[-- Attachment #1: Type: text/plain, Size: 3883 bytes --]
CC: kbuild-all(a)lists.01.org
CC: linux-acpi(a)vger.kernel.org
CC: devel(a)acpica.org
CC: linux-pm(a)vger.kernel.org
TO: "Rafael J. Wysocki" <rjw@rjwysocki.net>
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 <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
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/kbuild-all(a)lists.01.org
[-- Attachment #2: config.gz --]
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^ permalink raw reply [flat|nested] 4+ messages in thread
* [pm:acpica-osl 3/3] drivers/acpi/osl.c:1608 acpi_release_memory() warn: ignoring unreachable code.
@ 2020-06-11 10:41 ` Dan Carpenter
0 siblings, 0 replies; 4+ messages in thread
From: Dan Carpenter @ 2020-06-11 10:41 UTC (permalink / raw)
To: kbuild, Rafael J. Wysocki; +Cc: lkp, kbuild-all, linux-acpi, devel, linux-pm
[-- Attachment #1: Type: text/plain, Size: 2157 bytes --]
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()
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 <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
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 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();
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Unreachable.
d2d2e3c46be5d6 Heikki Krogerus 2018-06-21 1609 }
d2d2e3c46be5d6 Heikki Krogerus 2018-06-21 1610 EXPORT_SYMBOL_GPL(acpi_release_memory);
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
[-- Attachment #2: .config.gz --]
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^ permalink raw reply [flat|nested] 4+ messages in thread
* [pm:acpica-osl 3/3] drivers/acpi/osl.c:1608 acpi_release_memory() warn: ignoring unreachable code.
@ 2020-06-11 10:41 ` Dan Carpenter
0 siblings, 0 replies; 4+ messages in thread
From: Dan Carpenter @ 2020-06-11 10:41 UTC (permalink / raw)
To: kbuild
[-- Attachment #1: Type: text/plain, Size: 2199 bytes --]
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()
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 <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
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 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();
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Unreachable.
d2d2e3c46be5d6 Heikki Krogerus 2018-06-21 1609 }
d2d2e3c46be5d6 Heikki Krogerus 2018-06-21 1610 EXPORT_SYMBOL_GPL(acpi_release_memory);
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
[-- Attachment #2: config.gz --]
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^ permalink raw reply [flat|nested] 4+ messages in thread
* [pm:acpica-osl 3/3] drivers/acpi/osl.c:1608 acpi_release_memory() warn: ignoring unreachable code.
@ 2020-06-11 10:41 ` Dan Carpenter
0 siblings, 0 replies; 4+ messages in thread
From: Dan Carpenter @ 2020-06-11 10:41 UTC (permalink / raw)
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 2199 bytes --]
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()
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 <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
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 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();
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Unreachable.
d2d2e3c46be5d6 Heikki Krogerus 2018-06-21 1609 }
d2d2e3c46be5d6 Heikki Krogerus 2018-06-21 1610 EXPORT_SYMBOL_GPL(acpi_release_memory);
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
[-- Attachment #2: config.gz --]
[-- Type: application/gzip, Size: 30893 bytes --]
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2020-06-11 10:42 UTC | newest]
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2020-06-11 10:41 [pm:acpica-osl 3/3] drivers/acpi/osl.c:1608 acpi_release_memory() warn: ignoring unreachable code Dan Carpenter
2020-06-11 10:41 ` Dan Carpenter
2020-06-11 10:41 ` Dan Carpenter
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2020-06-11 7:26 kernel test robot
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