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| author | Cai Huoqing <cai.huoqing@linux.dev> | 2021-12-02 22:07:37 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-12-03 16:00:41 +0100 |
| commit | 13a5fad39a7b781c21d9528bcf52a5f5babafe99 (patch) | |
| tree | 5a01ce32f1349933d2f124c41418619a170b76a8 | |
| parent | d1180405c7b5c7a1c6bde79d5fc24fe931430737 (diff) | |
| download | linux-13a5fad39a7b781c21d9528bcf52a5f5babafe99.tar.gz linux-13a5fad39a7b781c21d9528bcf52a5f5babafe99.tar.bz2 linux-13a5fad39a7b781c21d9528bcf52a5f5babafe99.zip | |
tty: mips_ejtag_fdc: Make use of the helper function kthread_run_on_cpu()
Replace kthread_create/kthread_bind/wake_up_process() with
kthread_run_on_cpu() to simplify the code.
Signed-off-by: Cai Huoqing <cai.huoqing@linux.dev>
Link: https://lore.kernel.org/r/20211202140737.94832-1-cai.huoqing@linux.dev
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/tty/mips_ejtag_fdc.c | 22 |
1 files changed, 10 insertions, 12 deletions
diff --git a/drivers/tty/mips_ejtag_fdc.c b/drivers/tty/mips_ejtag_fdc.c index 02c10a968de1..31dceb5039b5 100644 --- a/drivers/tty/mips_ejtag_fdc.c +++ b/drivers/tty/mips_ejtag_fdc.c @@ -955,19 +955,18 @@ static int mips_ejtag_fdc_tty_probe(struct mips_cdmm_device *dev) mips_ejtag_fdc_con.tty_drv = driver; init_waitqueue_head(&priv->waitqueue); - priv->thread = kthread_create(mips_ejtag_fdc_put, priv, priv->fdc_name); - if (IS_ERR(priv->thread)) { - ret = PTR_ERR(priv->thread); - dev_err(priv->dev, "Couldn't create kthread (%d)\n", ret); - goto err_destroy_ports; - } /* * Bind the writer thread to the right CPU so it can't migrate. * The channels are per-CPU and we want all channel I/O to be on a * single predictable CPU. */ - kthread_bind(priv->thread, dev->cpu); - wake_up_process(priv->thread); + priv->thread = kthread_run_on_cpu(mips_ejtag_fdc_put, priv, + dev->cpu, "ttyFDC/%u"); + if (IS_ERR(priv->thread)) { + ret = PTR_ERR(priv->thread); + dev_err(priv->dev, "Couldn't create kthread (%d)\n", ret); + goto err_destroy_ports; + } /* Look for an FDC IRQ */ priv->irq = get_c0_fdc_int(); @@ -1095,15 +1094,14 @@ static int mips_ejtag_fdc_tty_cpu_up(struct mips_cdmm_device *dev) } /* Restart the kthread */ - priv->thread = kthread_create(mips_ejtag_fdc_put, priv, priv->fdc_name); + /* Bind it back to the right CPU and set it off */ + priv->thread = kthread_run_on_cpu(mips_ejtag_fdc_put, priv, + dev->cpu, "ttyFDC/%u"); if (IS_ERR(priv->thread)) { ret = PTR_ERR(priv->thread); dev_err(priv->dev, "Couldn't re-create kthread (%d)\n", ret); goto out; } - /* Bind it back to the right CPU and set it off */ - kthread_bind(priv->thread, dev->cpu); - wake_up_process(priv->thread); out: return ret; } |