- 07 5月, 2015 33 次提交
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由 Sascha Hauer 提交于
The pm_runtime callbacks already enable and disable the device. Use them in probe() and remove() instead of duplicating the code. This allows us to concentrate more code for enabling/disabling the UART in a single place. Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Sascha Hauer 提交于
When a struct device * is present clk_get should be used rather than of_clk_get. Use the devm variant of this function to be able to drop the clk_put in the error and remove pathes. While at it fix a wrong error message. Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Sascha Hauer 提交于
When the driver has probed successfully the clk pointer is always valid, so no need to test for it. Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Firo Yang 提交于
The function meson_uart_release_port() inappropriately try to iounmap() a resource managed by devm_ioremap_nocache(). The function meson_uart_release_port() maybe called by uart_ioctl() that means meson_uart_release_port() is not called from within a probe or remove function, for safety, I convert iounmap() to devm_iounmap(). Signed-off-by: NFiro Yang <firogm@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 John Ogness 提交于
The rx_running flag should show if DMA is currently active. However there is a window between when the flag is set/cleared and when the DMA is started/stopped. Because the flag is queried from both hard and soft irq contexts, the driver can make incorrect decisions and do things like start a DMA transfer using a buffer that is already setup to be used for a DMA transfer. This patch adds a spinlock to synchronize the rx_running flag and close the above mentioned window. Signed-off-by: NJohn Ogness <john.ogness@linutronix.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 John Ogness 提交于
The 8250_omap serial driver relies on dmaengine_pause() actually pausing the DMA transfer. Before this patch dmaengine_pause() is a NOP for non-cylic DMA transfers. This allowed the 8250_omap driver to read DMA buffers while the DMA was still active, resulting in lost serial data. Signed-off-by: NJohn Ogness <john.ogness@linutronix.de> Acked-by: NPeter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 John Ogness 提交于
When stopping a DMA transfer with interrupts disabled it is possible that the DMA transfer completes before the events are cleared. In this case the completion interrupt will be pending, causing a completion callback after the transfer was stopped. By clearing the completion interrupt for the stopping channel it is ensured that no completion event will be generated after the stop. Signed-off-by: NJohn Ogness <john.ogness@linutronix.de> Acked-by: NPeter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Geert Uytterhoeven 提交于
If NO_DMA=y: drivers/built-in.o: In function `ifx_spi_free_device': ifx6x60.c:(.text+0x96d9a): undefined reference to `dma_free_coherent' drivers/built-in.o: In function `ifx_spi_spi_probe': ifx6x60.c:(.text+0x978a2): undefined reference to `dma_alloc_coherent' While DMA is optional in this driver, and is used only if ifx_modem_platform_data.use_dma is set, there are currently no in-tree users of ifx_modem_platform_data (and thus of this driver), so just make it depend on HAS_DMA. Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Geert Uytterhoeven 提交于
There's no need to cast the last parameter of {request,free}_irq() to "void *", as any pointer type is accepted. Remove the superfluous casts to fix this. Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Geert Uytterhoeven 提交于
Casting spi_driver pointers to "void *" when calling spi_{,un}register_driver() bypasses all type checking. Remove the superfluous casts to fix this. Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Qipan Li 提交于
Signed-off-by: NQipan Li <Qipan.Li@csr.com> Signed-off-by: NBarry Song <Baohua.Song@csr.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Qipan Li 提交于
This reverts commit 52bec4ed("serial: sirf: add a new uart type support"). we misunderstood the clock dependency in atlas7. Actually involved several clocks are in a tree structure. we still only need to take the leaf clock node for BT uarts. Signed-off-by: NQipan Li <Qipan.Li@csr.com> Signed-off-by: NBarry Song <Barry.Song@csr.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Valentin Rothberg 提交于
Remove CONFIG_SERIAL_DETECT_IRQ and CONFIG_SERIAL_MANY_PORTS, and substitute all references to the proper 8250 Kconfig options. Now, the actual Kconfig dependencies are not hidden when reading the code and static analyzers are less confused. Signed-off-by: NValentin Rothberg <valentinrothberg@gmail.com> Reviewed-by: NPeter Hurley <peter@hurleysoftware.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Peter Hurley 提交于
If CONFIG_SERIAL_CORE_CONSOLE=n, build warnings are generated by uart_console() macro expansion: drivers/tty/serial/of_serial.c: In function ‘of_serial_suspend_8250’: drivers/tty/serial/of_serial.c:262:20: warning: unused variable ‘port’ [-Wunused-variable] struct uart_port *port = &port8250->port; ^ drivers/tty/serial/of_serial.c: In function ‘of_serial_resume_8250’: drivers/tty/serial/of_serial.c:272:20: warning: unused variable ‘port’ [-Wunused-variable] struct uart_port *port = &port8250->port; Signed-off-by: NPeter Hurley <peter@hurleysoftware.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Valentin Rothberg 提交于
Correct reference in C-comment after #endif. Signed-off-by: NValentin Rothberg <valentinrothberg@gmail.com> Reviewed-by: NPeter Hurley <peter@hurleysoftware.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Valentin Rothberg 提交于
The CONFIG_ prefix is reserved for Kconfig options in Make and CPP syntax; static analysis tools rely on this convention. This patch enforces this behavior for SERIAL_BFIN_{HARD_}CTSRTS. Signed-off-by: NValentin Rothberg <valentinrothberg@gmail.com> Acked-by: NSonic Zhang <sonic.zhang@analog.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Valentin Rothberg 提交于
Fix reference on PPC_MPC52xx in C comment after #endif. Signed-off-by: NValentin Rothberg <valentinrothberg@gmail.com> Reviewed-by: NPeter Hurley <peter@hurleysoftware.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Valentin Rothberg 提交于
This file local CPP identifier is not referenced anywhere else, so we can safely remove it. Signed-off-by: NValentin Rothberg <valentinrothberg@gmail.com> Reviewed-by: NPeter Hurley <peter@hurleysoftware.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Leilei Zhao 提交于
Handle the changed flag of IRQ status in interruption instead of handling it in tasklet due to the tasklet may be scheduled more than once in one interruption. Otherwise, the changed status may be processed more than once which will lead to unexpected result. And seriously, kernel will crash. Signed-off-by: NLeilei Zhao <leilei.zhao@atmel.com> Acked-by: NNicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Valentin Rothberg 提交于
The 'CONFIG_' prefix is reserved for Kconfig options in Make and CPP syntax only. Remove this prefix from the self-defined CPP identifier to apply to this convention and make static analysis tools happy. Signed-off-by: NValentin Rothberg <valentinrothberg@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Valentin Rothberg 提交于
ETRAX_SERIAL_PROC_ENTRY is not defined in Kconfig. The affected #ifdef block has not been compiled for years, and the embedded macro, PROCSTAT, ended up as a NOOP. Hence, remove the block and all calls to PROCSTAT. Signed-off-by: NValentin Rothberg <valentinrothberg@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Valentin Rothberg 提交于
ETRAX_RS485_{ON_PORT_G, LTC1387} are not defined in Kconfig. The affected #ifdef block have not been compiled for years, so remove them entirely. Signed-off-by: NValentin Rothberg <valentinrothberg@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Valentin Rothberg 提交于
ETRAX_EXTERN_PB6CLK_ENABLED is not defined in Kconfig. The affected #ifdef block has not been compiled for years, so remove it entirely. Signed-off-by: NValentin Rothberg <valentinrothberg@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Valentin Rothberg 提交于
Correct reference on CONFIG_SERIAL_ALTERA_{JTAG}UART_CONSOLE in C-comment after #endif. Signed-off-by: NValentin Rothberg <valentinrothberg@gmail.com> Acked-by: NTobias Klauser <tklauser@distanz.ch> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Valentin Rothberg 提交于
The Kconfig option ARCH_SH7372 has been removed by commit 59b89af1 ("ARM: shmobile: sh7372: Remove Legacy C SoC code"). This patch removes the last reference on this Kconfig option. Signed-off-by: NValentin Rothberg <valentinrothberg@gmail.com> Acked-by: NGeert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Joe Perches 提交于
Use the normal return values for bool functions Signed-off-by: NJoe Perches <joe@perches.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Rasmus Villemoes 提交于
tty_name no longer uses the buf parameter, so remove it along with all the 64 byte stack buffers that used to be passed in. Mostly generated by the coccinelle script @depends on patch@ identifier buf; constant C; expression tty; @@ - char buf[C]; <+... - tty_name(tty, buf) + tty_name(tty) ...+> allmodconfig compiles, so I'm fairly confident the stack buffers weren't used for other purposes as well. Signed-off-by: NRasmus Villemoes <linux@rasmusvillemoes.dk> Reviewed-by: NPeter Hurley <peter@hurleysoftware.com> Acked-by: NJesper Nilsson <jesper.nilsson@axis.com> Acked-by: NDmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Rasmus Villemoes 提交于
All users of tty_name pass the return value (the provided buffer) to some printf-like function. We can thus avoid the strcpy and, more importantly, later remove the buf parameter completely, eliminating the need for some 64 byte stack buffers. Signed-off-by: NRasmus Villemoes <linux@rasmusvillemoes.dk> Reviewed-by: NPeter Hurley <peter@hurleysoftware.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Rasmus Villemoes 提交于
All users of tty_name pass the result directly to a printf-like function. This means we can actually let tty_name return the literal "NULL tty" or tty->name directly, avoiding the strcpy and a lot of medium-sized stack buffers. In preparation for that, make the return type const char*. While at it, we can also constify the tty parameter. Signed-off-by: NRasmus Villemoes <linux@rasmusvillemoes.dk> Reviewed-by: NPeter Hurley <peter@hurleysoftware.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Fabio Estevam 提交于
The return value from imx_setup_ufcr() is always 0 and its value is never checked, so better to remove the return value. Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Jiada Wang 提交于
Previously Soft Reset (clear of SRST bit in UCR2 register) of UART in startup is not protected by lock, which may have race with console_write, as console_write may occur at anytime even when UART port is shutdown. To avoid this race, protect Soft reset of UART port with spin_lock. Signed-off-by: NJiada Wang <jiada_wang@mentor.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Dave Martin 提交于
Commit 734745ca serial/amba-pl011: Activate TX IRQ passively adds some complexity and overhead in the form of a softirq mechanism for transmitting in the absence of interrupts. This patch simplifies the code flow to reduce the reliance on subtle behaviour and avoid fragility under future maintenance. To this end, the TX softirq mechanism is removed and instead pl011_start_tx() will now simply stuff the FIFO until full (guaranteeing future TX IRQs), or until there are no more chars to write (in which case we don't care whether an IRQ happens). Signed-off-by: NDave Martin <Dave.Martin@arm.com> Signed-off-by: NJakub Kicinski <kubakici@wp.pl> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Dave Martin 提交于
This reverts commit f2ee6dfa. Jakub Kiciński observed that this patch can cause the pl011 driver to hang if if the only process with a pl011 port open is killed by a signal, pl011_shutdown() can get called with an arbitrary amount of data still in the FIFO. Calling _shutdown() with the TX FIFO non-empty is questionable behaviour and my itself be a bug. Since the affected patch was speculative anyway, and brings limited benefit, the simplest course is to remove the assumption that TXIS will always be left asserted after the port is shut down. Signed-off-by: NDave Martin <Dave.Martin@arm.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 04 5月, 2015 7 次提交
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由 Linus Torvalds 提交于
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git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4由 Linus Torvalds 提交于
Pull ext4 fixes from Ted Ts'o: "Some miscellaneous bug fixes and some final on-disk and ABI changes for ext4 encryption which provide better security and performance" * tag 'for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: fix growing of tiny filesystems ext4: move check under lock scope to close a race. ext4: fix data corruption caused by unwritten and delayed extents ext4 crypto: remove duplicated encryption mode definitions ext4 crypto: do not select from EXT4_FS_ENCRYPTION ext4 crypto: add padding to filenames before encrypting ext4 crypto: simplify and speed up filename encryption
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git://people.freedesktop.org/~airlied/linux由 Linus Torvalds 提交于
Pull drm fixes from Dave Airlie: "One intel fix, one rockchip fix, and a bunch of radeon fixes for some regressions from audio rework and vm stability" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm/i915/chv: Implement WaDisableShadowRegForCpd drm/radeon: fix userptr return value checking (v2) drm/radeon: check new address before removing old one drm/radeon: reset BOs address after clearing it. drm/radeon: fix lockup when BOs aren't part of the VM on release drm/radeon: add SI DPM quirk for Sapphire R9 270 Dual-X 2G GDDR5 drm/radeon: adjust pll when audio is not enabled drm/radeon: only enable audio streams if the monitor supports it drm/radeon: only mark audio as connected if the monitor supports it (v3) drm/radeon/audio: don't enable packets until the end drm/radeon: drop dce6_dp_enable drm/radeon: fix ordering of AVI packet setup drm/radeon: Use drm_calloc_ab for CS relocs drm/rockchip: fix error check when getting irq MAINTAINERS: add entry for Rockchip drm drivers
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git://anongit.freedesktop.org/drm-intel由 Dave Airlie 提交于
Just a single intel fix * tag 'drm-intel-fixes-2015-04-30' of git://anongit.freedesktop.org/drm-intel: drm/i915/chv: Implement WaDisableShadowRegForCpd
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https://github.com/markyzq/kernel-drm-rockchip由 Dave Airlie 提交于
one fix and maintainers update * 'drm-next0420' of https://github.com/markyzq/kernel-drm-rockchip: drm/rockchip: fix error check when getting irq MAINTAINERS: add entry for Rockchip drm drivers
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi由 Linus Torvalds 提交于
Pull SCSI fixes from James Bottomley: "This is three logical fixes (as 5 patches). The 3ware class of drivers were causing an oops with multiqueue by tearing down the command mappings after completing the command (where the variables in the command used to tear down the mapping were no-longer valid). There's also a fix for the qnap iscsi target which was choking on us sending it commands that were too long and a fix for the reworked aha1542 allocating GFP_KERNEL under a lock" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: 3w-9xxx: fix command completion race 3w-xxxx: fix command completion race 3w-sas: fix command completion race aha1542: Allocate memory before taking a lock SCSI: add 1024 max sectors black list flag
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git://git.infradead.org/users/vkoul/slave-dma由 Linus Torvalds 提交于
Pull slave dmaengine fixes from Vinod Koul: "Here are the fixes in dmaengine subsystem for rc2: - privatecnt fix for slave dma request API by Christopher - warn fix for PM ifdef in usb-dmac by Geert - fix hardware dependency for xgene by Jean" * 'next' of git://git.infradead.org/users/vkoul/slave-dma: dmaengine: increment privatecnt when using dma_get_any_slave_channel dmaengine: xgene: Set hardware dependency dmaengine: usb-dmac: Protect PM-only functions to kill warning
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