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| author | Milton Miller <miltonm@bga.com> | 2007-06-10 14:32:43 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-06-14 11:56:17 +1000 |
| commit | 220ddc0847ebd42d18ee78c7e1c2f4c2e3be637d (patch) | |
| tree | 22f9a16bd62bd5f0041673dfa0abbfd695a0144a /arch/powerpc | |
| parent | c63c4faa8cf055319c7ed557d2050c1c3776fac5 (diff) | |
| download | linux-3.10-220ddc0847ebd42d18ee78c7e1c2f4c2e3be637d.tar.gz linux-3.10-220ddc0847ebd42d18ee78c7e1c2f4c2e3be637d.tar.bz2 linux-3.10-220ddc0847ebd42d18ee78c7e1c2f4c2e3be637d.zip | |
[POWERPC] Fix console output getting dropped on platforms without udbg_putc
Previously, registering this early console would just result
in dropping early buffered printk output until a udbg_putc
was registered.
However, commit 69331af79cf29e26d1231152a172a1a10c2df511
clears the CON_PRINTBUFFER flag on the main console when a
CON_BOOT (early) console has been registered, resulting in
the buffered messages never being displayed to the user.
This fixes the problem by making sure we don't register udbg_console
on platforms that don't implement udbg_putc.
Signed-off-by: Milton Miller <miltonm@bga.com>
Acked-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/kernel/udbg.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/udbg.c b/arch/powerpc/kernel/udbg.c index 87703df8750..cbca1df8bc6 100644 --- a/arch/powerpc/kernel/udbg.c +++ b/arch/powerpc/kernel/udbg.c @@ -151,12 +151,18 @@ static struct console udbg_console = { static int early_console_initialized; -/* called by setup_system */ +/* + * Called by setup_system after ppc_md->probe and ppc_md->early_init. + * Call it again after setting udbg_putc in ppc_md->setup_arch. + */ void register_early_udbg_console(void) { if (early_console_initialized) return; + if (!udbg_putc) + return; + if (strstr(boot_command_line, "udbg-immortal")) { printk(KERN_INFO "early console immortal !\n"); udbg_console.flags &= ~CON_BOOT; |