- 11 12月, 2010 3 次提交
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由 Jamie Iles 提交于
The 8250 driver structure uart_8250_port took advantage of the fact that the struct uart_port was the first member of its structure and used an explicit cast to convert to the derived class. Replace the explicit casts with container_of() for safety and clarity. Signed-off-by: NJamie Iles <jamie@jamieiles.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Cosmin Cojocar 提交于
The kgdb invokes the poll_put_char and poll_get_char when communicating with the host. This patch also changes the initialization order because the kgdb will check at the very beginning, if there is a valid serial driver. Signed-off-by: NCosmin Cojocar <cosmin.cojocar@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Randy Dunlap 提交于
The dma_request_channel/dma_release_channel interfaces are not built when DMADEVICES is not enabled, so make the driver depend on DMADEVICES. Also, the help text says that the driver enables & uses PCH_DMA, which is not enabled, so select that. ERROR: "__dma_request_channel" [drivers/serial/pch_uart.ko] undefined! ERROR: "dma_release_channel" [drivers/serial/pch_uart.ko] undefined! Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com> Cc: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com> Reported-by: NZimny Lech <napohybelskurwysynom2010@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 01 12月, 2010 6 次提交
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由 Daniel Walker 提交于
This driver adds a basic console that uses the arm JTAG DCC to transfer data back and forth. It has support for ARMv6 and ARMv7. This console is created under the HVC driver, and should be named /dev/hvcX (or /dev/hvc0 for example). Cc: Tony Lindgren <tony@atomide.com> Acked-by: NArnd Bergmann <arnd@arndb.de> Acked-by: NNicolas Pitre <nicolas.pitre@linaro.org> Cc: Mike Frysinger <vapier@gentoo.org> Signed-off-by: NDaniel Walker <dwalker@codeaurora.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Yegor Yefremov 提交于
Add a notion about 16C950 UART, that is using DTR signal for RS485 mode. Signed-off-by: NYegor Yefremov <yegorslists@googlemail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Vasiliy Kulikov 提交于
If tty_register_driver() failed then tty_driver is still alive. Free it with put_tty_driver(). Signed-off-by: NVasiliy Kulikov <segoon@openwall.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Vasiliy Kulikov 提交于
If second request_irq() failed then the first IRQ must be freed in error handling code. Signed-off-by: NVasiliy Kulikov <segoon@openwall.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Tomoya MORINAGA 提交于
UART driver of Intel EG20T(Topcliff) PCH Intel EG20T PCH is the platform controller hub that is going to be used in Intel's general embedded platform. All IO peripherals in Intel EG20T PCH are actually devices sitting on AMBA bus. Intel EG20T PCH has UART I/F. Using this I/F, it is able to access system devices connected to UART. Signed-off-by: NTomoya MORINAGA <tomoya-linux@dsn.okisemi.com> Acked-by: NAlan Cox <alan@linux.intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Dirk Brandewie 提交于
This patch adds support for the PCI UART on the ce4100. Signed-off-by: NDirk Brandewie <dirk.brandewie@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 17 11月, 2010 8 次提交
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由 Alan Cox 提交于
Noted by Stephen Rothwell Signed-off-by: NAlan Cox <alan@linux.intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alan Cox 提交于
Correct the KConfig as noted by Greg. Signed-off-by: NAlan Cox <alan@linux.intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Wolfram Sang 提交于
The printout for the type should be just "5xxx", so 512x users won't wonder why they have a mpc52xx-type UART. Signed-off-by: NWolfram Sang <w.sang@pengutronix.de> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Jiri Slaby 提交于
* use newly added for_each_console for iterating consoles * add proper console locking * do not initialize tmp twice * no need to declare console_drivers, it's already done in console.h Signed-off-by: NJiri Slaby <jslaby@suse.cz> Acked-by: NKyle McMartin <kyle@mcmartin.ca> Cc: Helge Deller <deller@gmx.de> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: linux-parisc@vger.kernel.org Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Jiri Slaby 提交于
It allows users to see what consoles are currently known to the system and with what flags. It is based on Werner's patch, the part about traversing fds was removed, the code was moved to kernel/printk.c, where consoles are handled and it makes more sense to me. Signed-off-by: Jiri Slaby <jslaby@suse.cz> [cleanups] Signed-off-by: N"Dr. Werner Fink" <werner@suse.de> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Jiri Slaby 提交于
Use newly added for_each_console for iterating consoles. Signed-off-by: NJiri Slaby <jslaby@suse.cz> Cc: Jeremy Fitzhardinge <jeremy@xensource.com> Cc: Chris Wright <chrisw@sous-sol.org> Cc: virtualization@lists.osdl.org Cc: xen-devel@lists.xensource.com Cc: linux-fbdev@vger.kernel.org Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Jiri Slaby 提交于
We reference termios and termiox in tty_driver.h, but we do not include linux/termios.h where these are defined. Add the #include properly. Otherwise when we include tty_driver.h, we get compile errors. Signed-off-by: NJiri Slaby <jslaby@suse.cz> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Greg KH <gregkh@suse.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Jiri Slaby 提交于
Move it out of printk.c so that we can use it all over the code. There are some potential users which will be converted to that macro in next patches. Signed-off-by: NJiri Slaby <jslaby@suse.cz> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 12 11月, 2010 7 次提交
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由 Baurzhan Ismagulov 提交于
AFAICT, these fields are not used anywhere. Signed-off-by: NBaurzhan Ismagulov <ibr@radix50.net> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Baurzhan Ismagulov 提交于
Setting Rx FIFO size to 1 reduces reader process wakeup latency up to 20x for baud rates <= 9600. This patch sets the Rx FIFO size to 1 for baud rates <= 9600 or if low latency has been requested for the tty. Signed-off-by: NMichael Trimarchi <michael@gandalf.sssup.it> Signed-off-by: NBruno Morelli <bruno@evidence.eu.com> Signed-off-by: NBaurzhan Ismagulov <ibr@radix50.net> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Claudio Scordino 提交于
Documentation about RS485 serial communications Signed-off-by: NClaudio Scordino <claudio@evidence.eu.com> Acked-by: NRandy Dunlap <randy.dunlap@oracle.com> Acked-by: NRussell King <linux@arm.linux.org.uk> Acked-by: NGrant Edwards <grant.b.edwards@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alan Cox 提交于
[Original From Ken Mills but I redid it using pr_ helpers instead] Also fix up coding style, there are two warnings left but that is where the CodingStyle tools blow up because they cannot handle if (blah) { foo } else switch (x) { case 1: } Signed-off-by: NAlan Cox <alan@linux.intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alan Cox 提交于
The mux supports several encoding schemes. Encoding 0 is a "not recommended" mode still sometimes used. This has now been tested with hardware that supports this mode, and found wanting. Fix the FCS handling in this mode and correct the state machine. Signed-off-by: NKen Mills <ken.k.mills@intel.com> Signed-off-by: NAlan Cox <alan@linux.intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alexey Charkov 提交于
This adds a driver for the serial ports found in VIA and WonderMedia Systems-on-Chip. Interrupt-driven FIFO operation is implemented. The hardware also supports pure register-based operation (which is slower) and DMA-based FIFO operation. As the FIFOs are only 16 bytes long, DMA operation is probably not worth the hassle. Signed-off-by: NAlexey Charkov <alchark@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Russ Gorby 提交于
Prototype driver for the IFX6x60 series of SPI attached modems by Jim Stanley and Russ Gorby Signed-off-by: NRuss Gorby <richardx.r.gorby@intel.com> [Some reworking and a major cleanup] Signed-off-by: NAlan Cox <alan@linux.intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 09 11月, 2010 10 次提交
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git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4由 Linus Torvalds 提交于
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: Add new ext4 inode tracepoints ext4: Don't call sb_issue_discard() in ext4_free_blocks() ext4: do not try to grab the s_umount semaphore in ext4_quota_off ext4: fix potential race when freeing ext4_io_page structures ext4: handle writeback of inodes which are being freed ext4: initialize the percpu counters before replaying the journal ext4: "ret" may be used uninitialized in ext4_lazyinit_thread() ext4: fix lazyinit hang after removing request
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6: TTY: move .gitignore from drivers/char/ to drivers/tty/vt/ TTY: create drivers/tty/vt and move the vt code there TTY: create drivers/tty and move the tty core files there
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由 Linus Torvalds 提交于
Merge branch 'staging-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-next-2.6 * 'staging-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-next-2.6: Staging: ath6kl: remove empty files that mess with 'distclean' staging: ath6kl: Fixing the driver to use modified mmc_host structure Staging: solo6x10: fix build problem
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由 Linus Torvalds 提交于
Merge branch 'rmobile-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 * 'rmobile-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: mmc: sh_mmcif: Convert extern inline to static inline. ARM: mach-shmobile: Allow GPIO chips to register IRQ mappings. ARM: mach-shmobile: fix sh7372 after a recent clock framework rework ARM: mach-shmobile: include drivers/sh/Kconfig ARM: mach-shmobile: ap4evb: Add HDMI sound support ARM: mach-shmobile: clock-sh7372: Add FSIDIV clock support ARM: shmobile: remove sh_timer_config clk member
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git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6由 Linus Torvalds 提交于
* 'sh-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: sh: clkfwk: Fix up checkpatch warnings. sh: make some needlessly global sh7724 clocks static sh: add clk_round_parent() to optimize parent clock rate sh: Simplify phys_addr_mask()/PTE_PHYS_MASK for 29/32-bit. sh: nommu: Support building without an uncached mapping. sh: nommu: use 32-bit phys mode. sh: mach-se: Fix up SE7206 no ioport build. sh: intc: Update for single IRQ reservation helper. sh: clkfwk: Fix up rate rounding error handling. sh: mach-se: Rip out superfluous 7751 PIO routines. sh: mach-se: Rip out superfluous 770x PIO routines. sh: mach-edosk7705: Kill off machtype, consolidate board def. sh: mach-edosk7705: update for this century, kill off PIO trapping. sh: mach-se: Rip out superfluous 7206 PIO routines. sh: mach-systemh: Kill off dead board. sh: mach-snapgear: Kill off machtype, consolidate board def. sh: mach-snapgear: Rip out superfluous PIO routines. sh: mach-microdev: SuperIO-relative ioport mapping.
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由 Theodore Ts'o 提交于
Add ext4_evict_inode, ext4_drop_inode, ext4_mark_inode_dirty, and ext4_begin_ordered_truncate() Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
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由 Theodore Ts'o 提交于
Commit 5c521830 (ext4: Support discard requests when running in no-journal mode) attempts to add sb_issue_discard() for data blocks (in data=writeback mode) and in no-journal mode. Unfortunately, this no longer works, because in commit dd3932ed (block: remove BLKDEV_IFL_WAIT), sb_issue_discard() only presents a synchronous interface, and there are times when we call ext4_free_blocks() when we are are holding a spinlock, or are otherwise in an atomic context. For now, I've removed the call to sb_issue_discard() to prevent a deadlock or (if spinlock debugging is enabled) failures like this: BUG: scheduling while atomic: rc.sysinit/1376/0x00000002 Pid: 1376, comm: rc.sysinit Not tainted 2.6.36-ARCH #1 Call Trace: [<ffffffff810397ce>] __schedule_bug+0x5e/0x70 [<ffffffff81403110>] schedule+0x950/0xa70 [<ffffffff81060bad>] ? insert_work+0x7d/0x90 [<ffffffff81060fbd>] ? queue_work_on+0x1d/0x30 [<ffffffff81061127>] ? queue_work+0x37/0x60 [<ffffffff8140377d>] schedule_timeout+0x21d/0x360 [<ffffffff812031c3>] ? generic_make_request+0x2c3/0x540 [<ffffffff81402680>] wait_for_common+0xc0/0x150 [<ffffffff81041490>] ? default_wake_function+0x0/0x10 [<ffffffff812034bc>] ? submit_bio+0x7c/0x100 [<ffffffff810680a0>] ? wake_bit_function+0x0/0x40 [<ffffffff814027b8>] wait_for_completion+0x18/0x20 [<ffffffff8120a969>] blkdev_issue_discard+0x1b9/0x210 [<ffffffff811ba03e>] ext4_free_blocks+0x68e/0xb60 [<ffffffff811b1650>] ? __ext4_handle_dirty_metadata+0x110/0x120 [<ffffffff811b098c>] ext4_ext_truncate+0x8cc/0xa70 [<ffffffff810d713e>] ? pagevec_lookup+0x1e/0x30 [<ffffffff81191618>] ext4_truncate+0x178/0x5d0 [<ffffffff810eacbb>] ? unmap_mapping_range+0xab/0x280 [<ffffffff810d8976>] vmtruncate+0x56/0x70 [<ffffffff811925cb>] ext4_setattr+0x14b/0x460 [<ffffffff811319e4>] notify_change+0x194/0x380 [<ffffffff81117f80>] do_truncate+0x60/0x90 [<ffffffff811e08fa>] ? security_inode_permission+0x1a/0x20 [<ffffffff811eaec1>] ? tomoyo_path_truncate+0x11/0x20 [<ffffffff81127539>] do_last+0x5d9/0x770 [<ffffffff811278bd>] do_filp_open+0x1ed/0x680 [<ffffffff8140644f>] ? page_fault+0x1f/0x30 [<ffffffff81132bfc>] ? alloc_fd+0xec/0x140 [<ffffffff81118db1>] do_sys_open+0x61/0x120 [<ffffffff81118e8b>] sys_open+0x1b/0x20 [<ffffffff81002e6b>] system_call_fastpath+0x16/0x1b https://bugzilla.kernel.org/show_bug.cgi?id=22302Reported-by: NMathias Burén <mathias.buren@gmail.com> Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu> Cc: jiayingz@google.com
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由 Dmitry Monakhov 提交于
It's not needed to sync the filesystem, and it fixes a lock_dep complaint. Signed-off-by: NDmitry Monakhov <dmonakhov@gmail.com> Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu> Reviewed-by: NJan Kara <jack@suse.cz>
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由 Theodore Ts'o 提交于
Use an atomic_t and make sure we don't free the structure while we might still be submitting I/O for that page. Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
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由 Theodore Ts'o 提交于
The following BUG can occur when an inode which is getting freed when it still has dirty pages outstanding, and it gets deleted (in this because it was the target of a rename). In ordered mode, we need to make sure the data pages are written just in case we crash before the rename (or unlink) is committed. If the inode is being freed then when we try to igrab the inode, we end up tripping the BUG_ON at fs/ext4/page-io.c:146. To solve this problem, we need to keep track of the number of io callbacks which are pending, and avoid destroying the inode until they have all been completed. That way we don't have to bump the inode count to keep the inode from being destroyed; an approach which doesn't work because the count could have already been dropped down to zero before the inode writeback has started (at which point we're not allowed to bump the count back up to 1, since it's already started getting freed). Thanks to Dave Chinner for suggesting this approach, which is also used by XFS. kernel BUG at /scratch_space/linux-2.6/fs/ext4/page-io.c:146! Call Trace: [<ffffffff811075b1>] ext4_bio_write_page+0x172/0x307 [<ffffffff811033a7>] mpage_da_submit_io+0x2f9/0x37b [<ffffffff811068d7>] mpage_da_map_and_submit+0x2cc/0x2e2 [<ffffffff811069b3>] mpage_add_bh_to_extent+0xc6/0xd5 [<ffffffff81106c66>] write_cache_pages_da+0x2a4/0x3ac [<ffffffff81107044>] ext4_da_writepages+0x2d6/0x44d [<ffffffff81087910>] do_writepages+0x1c/0x25 [<ffffffff810810a4>] __filemap_fdatawrite_range+0x4b/0x4d [<ffffffff810815f5>] filemap_fdatawrite_range+0xe/0x10 [<ffffffff81122a2e>] jbd2_journal_begin_ordered_truncate+0x7b/0xa2 [<ffffffff8110615d>] ext4_evict_inode+0x57/0x24c [<ffffffff810c14a3>] evict+0x22/0x92 [<ffffffff810c1a3d>] iput+0x212/0x249 [<ffffffff810bdf16>] dentry_iput+0xa1/0xb9 [<ffffffff810bdf6b>] d_kill+0x3d/0x5d [<ffffffff810be613>] dput+0x13a/0x147 [<ffffffff810b990d>] sys_renameat+0x1b5/0x258 [<ffffffff81145f71>] ? _atomic_dec_and_lock+0x2d/0x4c [<ffffffff810b2950>] ? cp_new_stat+0xde/0xea [<ffffffff810b29c1>] ? sys_newlstat+0x2d/0x38 [<ffffffff810b99c6>] sys_rename+0x16/0x18 [<ffffffff81002a2b>] system_call_fastpath+0x16/0x1b Reported-by: NNick Bowler <nbowler@elliptictech.com> Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu> Tested-by: NNick Bowler <nbowler@elliptictech.com>
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- 08 11月, 2010 5 次提交
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由 Paul Mundt 提交于
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由 Paul Mundt 提交于
Merge branches 'sh/pio-death', 'sh/nommu', 'sh/clkfwk', 'sh/core' and 'sh/intc-extension' into sh-fixes-for-linus
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由 Paul Mundt 提交于
The clk_round_parent() change introduced various checkpatch warnings, tidy them up. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Guennadi Liakhovetski 提交于
These clocks are currently only used inside one .c file and are not declared in any headers, therefore having them global is useless. Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Guennadi Liakhovetski 提交于
Sometimes it is possible and reasonable to adjust the parent clock rate to improve precision of the child clock, e.g., if the child clock has no siblings. clk_round_parent() is a new addition to the SH clock-framework API, that implements such an optimization for child clocks with divisors, taking all integer values in a range. Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 07 11月, 2010 1 次提交
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由 Greg Kroah-Hartman 提交于
These two .h files would get removed from the tree when doing make distclean It turns out they are not needed at all, so just delete them which fixes people's git trees when doing development. Reported-by: NAndi Kleen <andi@firstfloor.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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