| Commit message (Collapse) | Author | Age | Files | Lines |
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Fix the following sparse warning:
drivers/mmc/host/sdhci-esdhc-imx.c:617:35: warning: Using plain integer as NULL pointer
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
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In function sdhci_request(), it is possible to do the tuning execution
like below:
sdhci_request() {
spin_lock_irqsave(&host->lock, flags);
host->mrq = mrq;
...
spin_unlock_irqrestore(&host->lock, flags);
<=== Here it is possible one pending finish_tasklet get running
and it will operate the original mrq, and notified the mrq
is done, and causes memory corruption.
sdhci_execute_tuning(mmc, tuning_opcode);
spin_lock_irqsave(&host->lock, flags);
host->mrq = mrq;
...
}
In the above race place, the original mrq should not be finished wrongly,
so here before unlock the spinlock, we need to set the host->mrq to NULL
to avoid this case.
Signed-off-by: Liu, Chuansheng <chuansheng.liu@intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
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Since I'm currently unable to dedicate sufficient time to driver
maintainership, remove myself from the maintainers list.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
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With some SDIO devices, timeout errors can happen when reading data.
To solve this issue, the DMA transfer has to be activated before sending
the command to the device. This order is incorrect in PDC mode. So we
have to take care if we are using DMA or PDC to know when to send the
MMC command.
Cc: stable <stable@vger.kernel.org> # 3.2+
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
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02cb3221d5bb35 ("mmc: tmio: support caps2 flags") added caps2 support on
tmio, but it overwrites mmc_of_parse() settings. This patch fixes it.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Laurent <laurent.pinchart@ideasonboard.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
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Under function mmc_blk_issue_rq, after an MMC discard operation,
the MMC request data structure may be freed in memory. Later in
the same function, the check of req->cmd_flags & MMC_REQ_SPECIAL_MASK
is dangerous and invalid. It causes the MMC host not to be released
when it should.
This patch fixes the issue by marking the special request down before
the discard/flush operation.
Reported by: Harold (SoonYeal) Yang <haroldsy@broadcom.com>
Signed-off-by: Ray Jui <rjui@broadcom.com>
Reviewed-by: Seungwon Jeon <tgih.jun@samsung.com>
Acked-by: Seungwon Jeon <tgih.jun@samsung.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
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The root clock will be disabled in runtime pm to save power.
Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
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Since we're using common esdhc_send_command for tuning commands and
the core code will call pm_runtime_put after command is finished.
So we add a pm_runtime_get_sync here to get the balance.
Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
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Current code will clear all turning related bits like ESDHC_STD_TUNING_EN
and ESDHC_MIX_CTRL_FBCLK_SEL when clear SDHCI_CTRL_EXEC_TUNING.
This may cause the card which has already passed the turning to become
unwork since the turning status lost.
We observed this failure when enable runtime pm.
BTW, imx needs to enable ESDHC_MIX_CTRL_FBCLK_SEL bit for turned clock.
The FBCLK_SEL will be cleared when SDHCI_CTRL_TUNED_CLK is cleared
and SDHCI_CTRL_EXEC_TUNING is not set.
This is used in case we change to another normal card from a UHS card
in the same slot. FBCLK_SEL is not needed for normal card.
After that, SDHCI_CTRL_EXEC_TUNING will only affect ESDHC_MIX_CTRL_EXE_TUNE.
Clearing it does not affect the turned card to remain working on UHS mode.
Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
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We should not clear tuning bits during reset or the SD3.0/eMMC4.5 card
working on UHS mode may not work after reset since the former tuning
settings was lost.
Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
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It is helpful for platform code to use to eliminate duplicated code.
Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
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Add support for eMMC 4.5 cards to work on hs200 mode.
Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
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The MMC_CAP_UHS_DDR50 must work on 1.8v.
However, the eMMC DDR mode can work on either 1.8v or 3.3v and
should not depend on UHS_DDR50.
So get rid of this limitation to let controller without 1.8v
signal voltage support can also work for eMMC DDR mode if it claims.
Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
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The i.MX6 supports 1.8v/3.3v eMMC DDR mode, so add this flag.
Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
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We should use '|=' instead '=', or it may over write the original
caps assigned before this line.
Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
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Used to read out the correct value of SDHCI_TRANSFER_MODE register
for upper layer.
Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
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The auto cmd settings bits should be cleared before sending new commands
or we may receive command timeout error for normal commands due to wrongly
pre-sent auto cmd.
e.g. we receive CMD13 timeout error due to ACMD23 is wrongly enabled
by former data commands.
mmc2: new high speed DDR MMC card at address 0001
mmcblk1: mmc2:0001 SEM08G 7.39 GiB
mmcblk1boot0: mmc2:0001 SEM08G partition 1 2.00 MiB
mmcblk1boot1: mmc2:0001 SEM08G partition 2 2.00 MiB
mmcblk1rpmb: mmc2:0001 SEM08G partition 3 128 KiB
mmcblk1: p1 p2 p3 p4 < p5 p6 p7 >
mmc2: Timeout waiting for hardware interrupt.
mmcblk1boot1: unknown partition table
mmc2: Timeout waiting for hardware interrupt.
mmcblk1boot0: unknown partition table
Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs
Pull 9p changes from Eric Van Hensbergen:
"Included are a new cache model for support of mmap, and several
cleanups across the filesystem and networking portions of the code"
* tag 'for-3.14-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
9p: update documentation
9P: introduction of a new cache=mmap model.
net/9p: remove virtio default hack and set appropriate bits instead
9p: remove useless 'name' variable and assignment
9p: fix return value in case in v9fs_fid_xattr_set()
9p: remove useless variable and assignment
9p: remove useless assignment
9p: remove unused 'super_block' struct pointer
9p: remove never used return variable
9p: remove unused 'p9_fid' struct pointer
9p: remove unused 'p9_client' struct pointer
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quick pass to update the documentation to include instructions for
the new cache=mmap mode as well as clean up some out-of-date bits.
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
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- Add cache=mmap option
- Make mmap read-write while keeping it as synchronous as possible
- Build writeback fid on mmap creation if it is writable
Signed-off-by: Dominique Martinet <dominique.martinet@cea.fr>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
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A few releases back a patch made virtio the default transport, however
it was done in a way which side-stepped the mechanism put in place to
allow for this selection. This patch cleans that up while maintaining
virtio as the default transport.
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
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There is no use of 'name' pointer. Get rid of its useless assignment.
Signed-off-by: Geyslan G. Bem <geyslan@gmail.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
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In case of error in the p9_client_write, the function v9fs_fid_xattr_set
should return its negative value, what was never being done.
In case of success it only retuned 0. Now it returns the 'offset'
variable (write_count total).
Signed-off-by: Geyslan G. Bem <geyslan@gmail.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
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There is no use of pointer 'v9ses'. Get rid of useless 'retval'
assignment.
Signed-off-by: Geyslan G. Bem <geyslan@gmail.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
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There is no use of pointer 'fid' before the next assignment.
Signed-off-by: Geyslan G. Bem <geyslan@gmail.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
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Get rid of the useless '*sb' variable.
Signed-off-by: Geyslan G. Bem <geyslan@gmail.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
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Get rid of the useless 'err' variable, since the return is treated
farther down without the use of it.
Signed-off-by: Geyslan G. Bem <geyslan@gmail.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
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Get rid of the useless '*fid' variable.
Signed-off-by: Geyslan G. Bem <geyslan@gmail.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
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Get rid of the useless '*clnt' variable.
Signed-off-by: Geyslan G. Bem <geyslan@gmail.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
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Merge ipmi fixes from Corey Minyard:
"Just some collected fixes for 3.14. Nothing huge"
* emailed patches from Corey Minyard <minyard@acm.org>:
ipmi: Cleanup error return
ipmi: fix timeout calculation when bmc is disconnected
ipmi: use USEC_PER_SEC instead of 1000000 for more meaningful
ipmi: remove deprecated IRQF_DISABLED
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Return proper errors for a lot of IPMI failure cases. Also call
pci_disable_device when IPMI PCI devices are removed.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Loading ipmi_si module while bmc is disconnected, we found the timeout
is longer than 5 secs. Actually it takes about 3 mins and 20
secs.(HZ=250)
error message as below:
Dec 12 19:08:59 linux kernel: IPMI BT: timeout in RD_WAIT [ ] 1 retries left
Dec 12 19:08:59 linux kernel: BT: write 4 bytes seq=0x01 03 18 00 01
[...]
Dec 12 19:12:19 linux kernel: IPMI BT: timeout in RD_WAIT [ ]
Dec 12 19:12:19 linux kernel: failed 2 retries, sending error response
Dec 12 19:12:19 linux kernel: IPMI: BT reset (takes 5 secs)
Dec 12 19:12:19 linux kernel: IPMI BT: flag reset [ ]
Function wait_for_msg_done() use schedule_timeout_uninterruptible(1) to
sleep 1 tick, so we should subtract jiffies_to_usecs(1) instead of 100
usecs from timeout.
Reported-by: Hu Shiyuan <hushiyuan@huawei.com>
Signed-off-by: Xie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Use USEC_PER_SEC instead of 1000000, that making the later bugfix
more clearly.
Signed-off-by: Xie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This patch proposes to remove the use of the IRQF_DISABLED flag
It's a NOOP since 2.6.35 and it will be removed one day.
Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"A respun version of the merges for the pull request previously sent
with a few additional fixes. The last two merges were fixed up by
hand since the branches have moved on and currently have the prior
merge in them.
Quite a busy release for the SPI subsystem, mostly in cleanups big and
small scattered through the stack rather than anything else:
- New driver for the Broadcom BC63xx HSSPI controller
- Fix duplicate device registration for ACPI
- Conversion of s3c64xx to DMAEngine (this pulls in platform and DMA
changes upon which the transiton depends)
- Some small optimisations to reduce the amount of time we hold locks
in the datapath, eliminate some redundant checks and the size of a
spi_transfer
- Lots of fixes, cleanups and general enhancements to drivers,
especially the rspi and Atmel drivers"
* tag 'spi-v3.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (112 commits)
spi: core: Fix transfer failure when master->transfer_one returns positive value
spi: Correct set_cs() documentation
spi: Clarify transfer_one() w.r.t. spi_finalize_current_transfer()
spi: Spelling s/finised/finished/
spi: sc18is602: Convert to use bits_per_word_mask
spi: Remove duplicate code to set default bits_per_word setting
spi/pxa2xx: fix compilation warning when !CONFIG_PM_SLEEP
spi: clps711x: Add MODULE_ALIAS to support module auto-loading
spi: rspi: Add missing clk_disable() calls in error and cleanup paths
spi: rspi: Spelling s/transmition/transmission/
spi: rspi: Add support for specifying CPHA/CPOL
spi/pxa2xx: initialize DMA channels to -1 to prevent inadvertent match
spi: rspi: Add more QSPI register documentation
spi: rspi: Add more RSPI register documentation
spi: rspi: Remove dependency on DMAE for SHMOBILE
spi/s3c64xx: Correct indentation
spi: sh: Use spi_sh_clear_bit() instead of open-coded
spi: bitbang: Grammar s/make to make/to make/
spi: sh-hspi: Spelling s/recive/receive/
spi: core: Improve tx/rx_nbits check comments
...
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Since commit 543bb25 "spi: add ability to validate xfer->bits_per_word in SPI
core", the driver can set bits_per_word_mask for the master then the SPI core
will reject transfers that attempt to use an unsupported bits_per_word value.
So we can remove the bits_per_word checking in sc18is602_check_transfer() and
let SPI core handle the checking.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Mark Brown <broonie@linaro.org>
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The overrun flag should be cleared in the SPI Status Register, not in the
SPI Control Register, based on the SDK sample code.
Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Mark Brown <broonie@linaro.org>
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SH7757 doesn't pass platform data, in which case spi-rspi uses default
parameters.
However, commit 5ce0ba88650f2606244a761d92e2b725f4ab3583 ("spi: rcar: add
Renesas QSPI support on RSPI") added a new user of the platform data, but
forgot to check for its validity first, causing a NULL pointer dereference
on SH7757.
Add the missing check to fix this.
Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Mark Brown <broonie@linaro.org>
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'spi/topic/s3c24xx', 'spi/topic/s3c64xx', 'spi/topic/sh', 'spi/topic/tegra114', 'spi/topic/tegra20-sflash', 'spi/topic/tegra20-slink', 'spi/topic/txx9' and 'spi/topic/xcomm' into spi-linus
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Use devm_spi_register_master() to make cleanup paths simpler,
and remove unnecessary remove().
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
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devm_clk_get() is used so there is no reason to explicitly
call clk_put() in txx9spi_probe() functions.
Fixes: 18e34d568efa ('spi: txx9: Use devm_clk_get()')
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.og>
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Use devm_clk_get() to make cleanup paths simpler.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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Previously used “unsigned long” may lead to confusion should the code
be compiled for 64-bit machine.
Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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Previously used “unsigned long” may lead to confusion should the code
be compiled for 64-bit machine.
Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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Previously used “unsigned long” may lead to confusion should the code
be compiled for 64-bit machine.
This commit also removes some unused fields of the tegra_spi_data
structure as well as removes duplicated #defines.
Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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We have a spi_sh_clear_bit() function, there's no reason not to use it.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
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Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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