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2016-05-23nilfs2: fix block commentsRyusuke Konishi11-107/+202
This fixes block comments with proper formatting to eliminate the following checkpatch.pl warnings: "WARNING: Block comments use * on subsequent lines" "WARNING: Block comments use a trailing */ on a separate line" Link: http://lkml.kernel.org/r/1462886671-3521-8-git-send-email-konishi.ryusuke@lab.ntt.co.jp Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-23nilfs2: remove loops of single statement macrosRyusuke Konishi1-5/+4
This fixes checkpatch.pl warning "WARNING: Single statement macros should not use a do {} while (0) loop". Link: http://lkml.kernel.org/r/1462886671-3521-7-git-send-email-konishi.ryusuke@lab.ntt.co.jp Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-23nilfs2: remove unnecessary else after return or breakRyusuke Konishi3-23/+21
This fixes the checkpatch.pl warning that suggests else is not generally useful after a break or return. Link: http://lkml.kernel.org/r/1462886671-3521-6-git-send-email-konishi.ryusuke@lab.ntt.co.jp Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-23nilfs2: avoid bare use of 'unsigned'Ryusuke Konishi27-90/+97
This fixes checkpatch.pl warning "WARNING: Prefer 'unsigned int' to bare use of 'unsigned'". Link: http://lkml.kernel.org/r/1462886671-3521-5-git-send-email-konishi.ryusuke@lab.ntt.co.jp Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-23nilfs2: fix code indent coding style issueRyusuke Konishi1-1/+1
This fixes checkpatch.pl warning "WARNING: suspect code indent for conditional statements". Link: http://lkml.kernel.org/r/1462886671-3521-4-git-send-email-konishi.ryusuke@lab.ntt.co.jp Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-23nilfs2: remove space before semicolonRyusuke Konishi1-1/+1
This fixes the checkpatch.pl warning "WARNING: space prohibited before semicolon" at nilfs_store_magic_and_option(). Link: http://lkml.kernel.org/r/1462886671-3521-3-git-send-email-konishi.ryusuke@lab.ntt.co.jp Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-23nilfs2: do not emit extra newline on nilfs_warning() and nilfs_error()Ryusuke Konishi6-16/+16
This updates call sites of nilfs_warning() and nilfs_error() so that they don't add a duplicate newline. These output functions are already designed to add a trailing newline to the message. Link: http://lkml.kernel.org/r/1462886671-3521-2-git-send-email-konishi.ryusuke@lab.ntt.co.jp Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-23nilfs2: clean trailing semicolons in macrosRyusuke Konishi2-5/+5
Remove trailing semicolons from macros, as suggested by checkpatch.pl. Link: http://lkml.kernel.org/r/1461935747-10380-12-git-send-email-konishi.ryusuke@lab.ntt.co.jp [konishi.ryusuke@lab.ntt.co.jp: fix style issues] Link: http://lkml.kernel.org/r/20160509.231703.1481729973362188932.konishi.ryusuke@lab.ntt.co.jp Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-23nilfs2: add missing line spacingRyusuke Konishi10-0/+14
Clean up checkpatch.pl warnings "WARNING: Missing a blank line after declarations" from nilfs2. Link: http://lkml.kernel.org/r/1461935747-10380-11-git-send-email-konishi.ryusuke@lab.ntt.co.jp Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-23nilfs2: replace __attribute__((packed)) with __packedRyusuke Konishi1-1/+1
This fixes the following checkpatch.pl warning: WARNING: __packed is preferred over __attribute__((packed)) #23: FILE: export.h:23: +} __attribute__ ((packed)); Link: http://lkml.kernel.org/r/1461935747-10380-10-git-send-email-konishi.ryusuke@lab.ntt.co.jp Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-23nilfs2: move cleanup code of metadata file from inode routinesRyusuke Konishi4-8/+38
Refactor nilfs_clear_inode() and nilfs_i_callback() so that cleanup code or resource deallocation related to metadata file will be moved out to mdt.c. Link: http://lkml.kernel.org/r/1461935747-10380-9-git-send-email-konishi.ryusuke@lab.ntt.co.jp Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-23nilfs2: get rid of nilfs_mdt_mark_block_dirty()Ryusuke Konishi3-32/+8
nilfs_mdt_mark_block_dirty() can be replaced with primary functions like nilfs_mdt_get_block() and mark_buffer_dirty(), and it's used only by nilfs_ioctl_mark_blocks_dirty(). This gets rid of the function to simplify the interface of metadata file. Link: http://lkml.kernel.org/r/1461935747-10380-8-git-send-email-konishi.ryusuke@lab.ntt.co.jp Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-23nilfs2: clarify permission to replicate the designRyusuke Konishi1-0/+5
To respond to a certain developer's request, this explicitly state that developers can reimplement the nilfs2 design for other operating systems to share data stored in that format. Link: http://lkml.kernel.org/r/1461935747-10380-7-git-send-email-konishi.ryusuke@lab.ntt.co.jp Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-23MAINTAINERS: add web link for nilfs projectRyusuke Konishi1-0/+1
Add nilfs.osdn.jp as the second web site of nilfs project. Link: http://lkml.kernel.org/r/1461935747-10380-6-git-send-email-konishi.ryusuke@lab.ntt.co.jp Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-23nilfs2: clean up old e-mail addressesRyusuke Konishi38-56/+46
E-mail addresses of osrg.net domain are no longer available. This removes them from authorship notices and prevents reporters from being confused. Link: http://lkml.kernel.org/r/1461935747-10380-5-git-send-email-konishi.ryusuke@lab.ntt.co.jp Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-23nilfs2: remove FSF mailing address from GPL noticesRyusuke Konishi38-152/+0
This removes the extra paragraph which mentions FSF address in GPL notices from source code of nilfs2 and avoids the checkpatch.pl error related to it. Link: http://lkml.kernel.org/r/1461935747-10380-4-git-send-email-konishi.ryusuke@lab.ntt.co.jp Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-23nilfs2: remove space before commaRyusuke Konishi2-4/+4
Fix checkpatch.pl error "ERROR: space prohibited before that ',' (ctx:WxW)" at nilfs_sufile_set_suinfo(). This also fixes checkpatch.pl warning "WARNING: Prefer 'unsigned int' to bare use of 'unsigned'" at nilfs_sufile_set_suinfo() and nilfs_sufile_get_suinfo(). Link: http://lkml.kernel.org/r/1461935747-10380-3-git-send-email-konishi.ryusuke@lab.ntt.co.jp Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-23nilfs2: fix white space issue in nilfs_mount()Ryusuke Konishi1-1/+1
Fix the following checkpatch.pl error and warnings: ERROR: code indent should use tabs where possible #1317: FILE: super.c:1317: + ^I^Is_new = true;$ WARNING: please, no space before tabs #1317: FILE: super.c:1317: + ^I^Is_new = true;$ WARNING: please, no spaces at the start of a line #1317: FILE: super.c:1317: + ^I^Is_new = true;$ Link: http://lkml.kernel.org/r/1461935747-10380-2-git-send-email-konishi.ryusuke@lab.ntt.co.jp Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-23nilfs2: constify nilfs_sc_operations structuresJulia Lawall1-5/+5
The nilfs_sc_operations structures are never modified, so declare them as const. Done with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-23fs/befs/io.c:befs_bread(): remove unneeded initialization to NULLSalah Triki1-1/+1
bh is reinitialized by sb_bread() so no need to init it with NULL in the beginning of befs_bread() Link: http://lkml.kernel.org/r/88481760b43226fac16adb1f1e68897e47d8235c.1462841692.git.salah.triki@acm.org Signed-off-by: Salah Triki <salah.triki@acm.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-23fs/befs/io.c:befs_bread_iaddr(): remove unneeded initialization to NULLSalah Triki1-1/+1
bh is reinitialized by sb_bread() so no need to init it with NULL in the beginning of befs_bread_iaddr() Link: http://lkml.kernel.org/r/586d2639d729345b9c07aac10ba713d8ceb8745a.1462841692.git.salah.triki@acm.org Signed-off-by: Salah Triki <salah.triki@acm.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-23fs/befs/linuxvfs.c:befs_iget(): remove unneeded befs_nio initialization to NULLSalah Triki1-1/+1
befs_ino is reinitialized by BEFS_I() so no need to init it with NULL in the beginning of befs_iget() Link: http://lkml.kernel.org/r/a5c02445e436629c4d4ba1b65d91501878942f58.1462842887.git.salah.triki@acm.org Signed-off-by: Salah Triki <salah.triki@acm.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-23fs/befs/linuxvfs.c:befs_iget(): remove unneeded raw_inode initialization to NULLSalah Triki1-1/+1
raw_inode is reinitialized to bh->b_data so no need to init it with NULL in the beginning of befs_iget() Link: http://lkml.kernel.org/r/0a66baaaacb6b7e5fcea5b31b57b649261152281.1462842887.git.salah.triki@acm.org Signed-off-by: Salah Triki <salah.triki@acm.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-23fs/befs/linuxvfs.c:befs_iget(): remove unneeded initialization to NULLSalah Triki1-1/+1
bh is reinitialized by befs_bread() so no need to init it with NULL in the beginning of befs_iget() Link: http://lkml.kernel.org/r/38d62b1469bc3b316ba6b81fd8e26fc66fdd713b.1462842886.git.salah.triki@acm.org Signed-off-by: Salah Triki <salah.triki@acm.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-23fs/befs/linuxvfs.c:befs_get_block(): remove unneeded initialization to NULLSalah Triki1-1/+1
inode is reinitialized by befs_iget() so no need to init it with NULL in the beginning of befs_lookup() Link: http://lkml.kernel.org/r/03d7e46890aef94078130bed97c4f8f8ae9ea2b2.1462842886.git.salah.triki@acm.org Signed-off-by: Salah Triki <salah.triki@acm.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-23fs/befs/datastream.c:befs_find_brun_dblindirect(): remove unneeded initializations to NULLSalah Triki1-3/+1
iaddr_array is unconditionally initialized to NULL in befs_find_brun_dblindirect(). Link: http://lkml.kernel.org/r/940def273e30ef37957fba9da6981a10fb3c9741.1462649034.git.salah.triki@acm.org Signed-off-by: Salah Triki <salah.triki@acm.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-23fs/befs/datastream.c:befs_read_lsymlink(): remove unneeded initialization to NULLSalah Triki1-1/+1
bh is reinitialized by befs_read_datastream() so no need to init it with NULL in the beginning of befs_read_lsymlink(). Link: http://lkml.kernel.org/r/e22f279bceb8d026af048952e02ba98925b21c92.1462649034.git.salah.triki@acm.org Signed-off-by: Salah Triki <salah.triki@acm.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-23fs/befs/datastream.c:befs_read_datastream(): remove unneeded initialization to NULLSalah Triki1-1/+1
bh is reinitialized by befs_bread_iaddr() so no need to init it with NULL in the beginning of befs_read_datastream(). Link: http://lkml.kernel.org/r/81e1f70187db34d195c8e42b1ff78be6a71c0060.1462649034.git.salah.triki@acm.org Signed-off-by: Salah Triki <salah.triki@acm.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-23mm: memcontrol: fix possible css ref leak on oomVladimir Davydov1-1/+1
mem_cgroup_oom may be invoked multiple times while a process is handling a page fault, in which case current->memcg_in_oom will be overwritten leaking the previously taken css reference. Link: http://lkml.kernel.org/r/1464019330-7579-1-git-send-email-vdavydov@virtuozzo.com Signed-off-by: Vladimir Davydov <vdavydov@virtuozzo.com> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-23ELF/MIPS build fixRalf Baechle3-3/+10
CONFIG_MIPS32_N32=y but CONFIG_BINFMT_ELF disabled results in the following linker errors: arch/mips/built-in.o: In function `elf_core_dump': binfmt_elfn32.c:(.text+0x23dbc): undefined reference to `elf_core_extra_phdrs' binfmt_elfn32.c:(.text+0x246e4): undefined reference to `elf_core_extra_data_size' binfmt_elfn32.c:(.text+0x248d0): undefined reference to `elf_core_write_extra_phdrs' binfmt_elfn32.c:(.text+0x24ac4): undefined reference to `elf_core_write_extra_data' CONFIG_MIPS32_O32=y but CONFIG_BINFMT_ELF disabled results in the following linker errors: arch/mips/built-in.o: In function `elf_core_dump': binfmt_elfo32.c:(.text+0x28a04): undefined reference to `elf_core_extra_phdrs' binfmt_elfo32.c:(.text+0x29330): undefined reference to `elf_core_extra_data_size' binfmt_elfo32.c:(.text+0x2951c): undefined reference to `elf_core_write_extra_phdrs' binfmt_elfo32.c:(.text+0x29710): undefined reference to `elf_core_write_extra_data' This is because binfmt_elfn32 and binfmt_elfo32 are using symbols from elfcore but for these configurations elfcore will not be built. Fixed by making elfcore selectable by a separate config symbol which unlike the current mechanism can also be used from other directories than kernel/, then having each flavor of ELF that relies on elfcore.o, select it in Kconfig, including CONFIG_MIPS32_N32 and CONFIG_MIPS32_O32 which fixes this issue. Link: http://lkml.kernel.org/r/20160520141705.GA1913@linux-mips.org Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Reviewed-by: James Hogan <james.hogan@imgtec.com> Cc: "Maciej W. Rozycki" <macro@linux-mips.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-23m32r: fix build failureSudip Mukherjee1-0/+1
m32r allmodconfig build was failing with the error: ERROR: "smp_flush_cache_all" [drivers/misc/lkdtm.ko] undefined! lkdtm driver at drivers/misc is using flush_icache_range() which for m32r is defined as smp_flush_cache_all() if CONFIG_SMP is defined. But as smp_flush_cache_all() was not exported so the build was failing with the error of undefined symbol. Link: http://lkml.kernel.org/r/1464001182-8329-1-git-send-email-sudipm.mukherjee@gmail.com Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-22x86: remove more uaccess_32.h complexityLinus Torvalds4-31/+3
I'm looking at trying to possibly merge the 32-bit and 64-bit versions of the x86 uaccess.h implementation, but first this needs to be cleaned up. For example, the 32-bit version of "__copy_from_user_inatomic()" is mostly the special cases for the constant size, and it's actually almost never relevant. Most users aren't actually using a constant size anyway, and the few cases that do small constant copies are better off just using __get_user() instead. So get rid of the unnecessary complexity. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-22x86: remove pointless uaccess_32.h complexityLinus Torvalds2-39/+1
I'm looking at trying to possibly merge the 32-bit and 64-bit versions of the x86 uaccess.h implementation, but first this needs to be cleaned up. For example, the 32-bit version of "__copy_to_user_inatomic()" is mostly the special cases for the constant size, and it's actually never relevant. Every user except for one aren't actually using a constant size anyway, and the one user that uses it is better off just using __put_user() instead. So get rid of the unnecessary complexity. [ The same cleanup should likely happen to __copy_from_user_inatomic() as well, but that one has a lot more users that I need to take a look at first ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-21x86 isa: add back X86_32 dependency on CONFIG_ISALinus Torvalds1-2/+2
Commit b3c1be1b789c ("base: isa: Remove X86_32 dependency") made ISA support available on x86-64 too. That's not right - while there are some LPC-style devices that might be useful still and be based on ISA-like IP blocks, that is *not* an excuse to try to enable any random legacy drivers. Such drivers should be individually enabled and made to perhaps depend on ISA_DMA_API instead (which we have continued to support on x86-64). Or we could add another "ISA_XYZ_API" that we support that doesn't enable random old drivers that aren't even 64-bit clean nor do we have any test coverage for. Turning off ISA will now also turn off some drivers that have been marked as depending on it as part of this series, and that used to work on modern platforms. See for example commits ad7afc38eab3..cc736607c86d, which may also need to be reverted. This commit means that the warnings that came in due to enabling ISA widely are now gone again. Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Guenter Roeck <linux@roeck-us.net> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-21rtc: tps6586x: rename so module can be autoloadedNicolas Chauvet1-1/+1
This module is loaded by the related mfd driver which has the needed MODULE_DEVICE_TABLE(i2c,...). This patch fix the modalias when the rtc driver is built as a module, so the right name is used. Everything operates correctly when this module is builtin. Fixes: esdc59ed3865 ("rtc: add RTC driver for TPS6586x") Signed-off-by: Nicolas Chauvet <kwizart@gmail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-05-21rtc: rv3029: hide unused i2c device tableArnd Bergmann1-7/+7
The added support for SPI mode made it possible to configure the driver when I2C is disabled, leaving an unused device table: drivers/rtc/rtc-rv3029c2.c:794:29: error: 'rv3029_id' defined but not used [-Werror=unused-variable] This moves the table inside of the #ifdef section that has the only user, to avoid the harmless warning. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: d08f50dd0afc ("rtc: rv3029: Add support of RV3049") Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-05-21rtc: rs5c372: r2025: fix check for 'oscillator halted' conditionThomas Koeller1-2/+2
The R2025SD chip, according to its data sheet, sets the /XST bit to zero if the oscillator stops. Hence the check for this condition was wrong. Signed-off-by: Thomas Koeller <thomas.koeller@baslerweb.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-05-21rtc: rv3029: add alarm IRQMylène Josserand1-21/+93
Add the alarm IRQ functionality. Signed-off-by: Mylène Josserand <mylene.josserand@free-electrons.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-05-21rtc: rv3029: fix set_time functionMylène Josserand1-1/+1
The bin2bcd function in set_time is uncorrect on weekdays as the bit mask should be done at the end of arithmetic operations. Signed-off-by: Mylène Josserand <mylene.josserand@free-electrons.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-05-21rtc: rv3029: fix alarm supportMylène Josserand1-7/+16
The RTC RV3029 handles different types of alarms : seconds, minutes, ... These alarms can be enabled or disabled individually using an AE_x bit which is the last bit (BIT(7)) on each alarm registers. To prepare the alarm IRQ support, the current code enables all the alarm types by setting each AE_x to 1. It also fixes others alarms issues : - month and weekday errors : it was performing -1 instead of +1. - wrong use of bit mask with bin2bcd Signed-off-by: Mylène Josserand <mylene.josserand@free-electrons.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-05-21rtc: rv3029: Remove some checks and warningsMylène Josserand1-34/+34
Remove some checks from checkpatch such as spaces around arithmetic operations or prefer "unsigned int". Signed-off-by: Mylène Josserand <mylene.josserand@free-electrons.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-05-21rtc: rv3029: Add support of RV3049Mylène Josserand2-21/+124
Add support of Microcrystal RV3049 RTC (SPI) using regmap on the RV3029 (I2C) driver. Signed-off-by: Mylène Josserand <mylene.josserand@free-electrons.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-05-21rtc: rv3029: convert to use regmapMylène Josserand1-133/+142
To add support of rv3049, the current driver is converted to use regmap. Signed-off-by: Mylène Josserand <mylene.josserand@free-electrons.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-05-21rtc: rv3029: remove 'i2c' in functions namesMylène Josserand1-75/+57
To prepare the use of regmap to add the support of RV-3049, all the 'i2c' in functions's names are removed. Signed-off-by: Mylène Josserand <mylene.josserand@free-electrons.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-05-20locking,qspinlock: Fix spin_is_locked() and spin_unlock_wait()Peter Zijlstra1-1/+26
Similar to commits: 51d7d5205d33 ("powerpc: Add smp_mb() to arch_spin_is_locked()") d86b8da04dfa ("arm64: spinlock: serialise spin_unlock_wait against concurrent lockers") qspinlock suffers from the fact that the _Q_LOCKED_VAL store is unordered inside the ACQUIRE of the lock. And while this is not a problem for the regular mutual exclusive critical section usage of spinlocks, it breaks creative locking like: spin_lock(A) spin_lock(B) spin_unlock_wait(B) if (!spin_is_locked(A)) do_something() do_something() In that both CPUs can end up running do_something at the same time, because our _Q_LOCKED_VAL store can drop past the spin_unlock_wait() spin_is_locked() loads (even on x86!!). To avoid making the normal case slower, add smp_mb()s to the less used spin_unlock_wait() / spin_is_locked() side of things to avoid this problem. Reported-and-tested-by: Davidlohr Bueso <dave@stgolabs.net> Reported-by: Giovanni Gherdovich <ggherdovich@suse.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: stable@vger.kernel.org # v4.2 and later Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-20sparc64: Reduce TLB flushes during hugepte changesNitin Gupta6-51/+97
During hugepage map/unmap, TSB and TLB flushes are currently issued at every PAGE_SIZE'd boundary which is unnecessary. We now issue the flush at REAL_HPAGE_SIZE boundaries only. Without this patch workloads which unmap a large hugepage backed VMA region get CPU lockups due to excessive TLB flush calls. Orabug: 22365539, 22643230, 22995196 Signed-off-by: Nitin Gupta <nitin.m.gupta@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-20aeroflex/greth: fix warning about unused variableSam Ravnborg1-1/+1
Fix following warning: aeroflex/greth.c:1326:11: warning: unused variable 'phy' [-Wunused-variable] The variable was unused - remove it. It looks like this warning has been there forever - was found by an allyesconfig build of sparc32. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Kristoffer Glembo <kristoffer@gaisler.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-20openprom: fix warningSam Ravnborg1-24/+16
Fix following warnings: openprom.c:510:2: warning: 'tmp' may be used uninitialized in this function [-Wmaybe-uninitialized] openprom.c:503:3: warning: 'str' may be used uninitialized in this function [-Wmaybe-uninitialized] openprom.c:459:8: warning: 'str' may be used uninitialized in this function [-Wmaybe-uninitialized] openprom.c:422:7: warning: 'str' may be used uninitialized in this function [-Wmaybe-uninitialized] Fixed by introducing PTR_ERR etc. This simplified the code as a nice side effect. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-20samples/kprobes: print out the symbol name for the hooksHuang Shijie1-16/+16
Print out the symbol name for the hooks, it makes the logs more readable. Link: http://lkml.kernel.org/r/1463535417-29637-2-git-send-email-shijie.huang@arm.com Signed-off-by: Huang Shijie <shijie.huang@arm.com> Cc: Petr Mladek <pmladek@suse.com> Cc: Steve Capper <steve.capper@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-20samples/kprobes: add a new module parameterHuang Shijie1-1/+5
Add a new module parameter which can be used as the symbol name. Without this patch, we can only test the "_do_fork" function with this kernel module. With this patch, the module becomes more flexible; we can test any functions with this module with # insmod kprobe_example.ko symbol="xxx" Link: http://lkml.kernel.org/r/1463535417-29637-1-git-send-email-shijie.huang@arm.com Signed-off-by: Huang Shijie <shijie.huang@arm.com> Cc: Petr Mladek <pmladek@suse.com> Cc: Steve Capper <steve.capper@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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