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| author | Paolo Bonzini | 2019-07-11 15:14:16 +0200 |
|---|---|---|
| committer | Paolo Bonzini | 2019-07-11 15:14:16 +0200 |
| commit | a45ff5994c9cde41af627c46abb9f32beae68943 (patch) | |
| tree | b726cc506ed1b01484f183ab2679cdd618e1e9b1 /drivers/tty/serial/sh-sci.c | |
| parent | Documentation: virtual: Add toctree hooks (diff) | |
| parent | KVM: arm/arm64: Initialise host's MPIDRs by reading the actual register (diff) | |
| download | kernel-qcow2-linux-a45ff5994c9cde41af627c46abb9f32beae68943.tar.gz kernel-qcow2-linux-a45ff5994c9cde41af627c46abb9f32beae68943.tar.xz kernel-qcow2-linux-a45ff5994c9cde41af627c46abb9f32beae68943.zip | |
Merge tag 'kvm-arm-for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm updates for 5.3
- Add support for chained PMU counters in guests
- Improve SError handling
- Handle Neoverse N1 erratum #1349291
- Allow side-channel mitigation status to be migrated
- Standardise most AArch64 system register accesses to msr_s/mrs_s
- Fix host MPIDR corruption on 32bit
Diffstat (limited to 'drivers/tty/serial/sh-sci.c')
| -rw-r--r-- | drivers/tty/serial/sh-sci.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c index 3cd139752d3f..abc705716aa0 100644 --- a/drivers/tty/serial/sh-sci.c +++ b/drivers/tty/serial/sh-sci.c @@ -1557,6 +1557,13 @@ static void sci_request_dma(struct uart_port *port) dev_dbg(port->dev, "%s: port %d\n", __func__, port->line); + /* + * DMA on console may interfere with Kernel log messages which use + * plain putchar(). So, simply don't use it with a console. + */ + if (uart_console(port)) + return; + if (!port->dev->of_node) return; |