Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1296584

Re: [PATCH] Revert "kernel/stop_machine.c: remove CONFIG_SMP dependencies"

Show all headers | View raw

On Tue, 22 Dec 2015 11:30:51 +0530 Sudip Mukherjee <sudipm.mukherjee@gmail.com> wrote:

> > Rationale:
> > 
> > stop_machine.o is only built when CONFIG_SMP=y so
> > 
> > #if defined(CONFIG_SMP) || defined(CONFIG_HOTPLUG_CPU)
> > 
> > always evaluates to true, so remove it.
> 
> Hi Andrew,
> The error is still there. I guess you have been busy. :)
> 
> next-20151222 fails with the same error. You can see the m32r defconfig
> at https://travis-ci.org/sudipm-mukherjee/parport/jobs/98258267

I forgot to Cc Stephen :(

From: Andrew Morton <akpm@linux-foundation.org>
Subject: kernel-stop_machinec-remove-config_smp-dependencies-fix

stop_machine.o is only built if CONFIG_SMP=y, so this ifdef always
evaluates to true.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Valentin Rothberg <valentinrothberg@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 kernel/stop_machine.c |    4 ----
 1 file changed, 4 deletions(-)

diff -puN kernel/stop_machine.c~kernel-stop_machinec-remove-config_smp-dependencies-fix kernel/stop_machine.c
--- a/kernel/stop_machine.c~kernel-stop_machinec-remove-config_smp-dependencies-fix
+++ a/kernel/stop_machine.c
@@ -531,8 +531,6 @@ static int __init cpu_stop_init(void)
 }
 early_initcall(cpu_stop_init);
 
-#ifdef CONFIG_HOTPLUG_CPU
-
 static int __stop_machine(cpu_stop_fn_t fn, void *data, const struct cpumask *cpus)
 {
 	struct multi_stop_data msdata = {
@@ -630,5 +628,3 @@ int stop_machine_from_inactive_cpu(cpu_s
 	mutex_unlock(&stop_cpus_mutex);
 	return ret ?: done.ret;
 }
-
-#endif	/* CONFIG_HOTPLUG_CPU */
_

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

[PATCH] Revert "kernel/stop_machine.c: remove CONFIG_SMP dependencies" Sudip Mukherjee <sudipm.mukherjee@gmail.com> - 2015-12-18 11:10 +0100
  Re: [PATCH] Revert "kernel/stop_machine.c: remove CONFIG_SMP  dependencies" Chris Metcalf <cmetcalf@ezchip.com> - 2015-12-18 16:00 +0100
  Re: [PATCH] Revert  "kernel/stop_machine.c: remove CONFIG_SMP dependencies" Andrew Morton <akpm@linux-foundation.org> - 2015-12-19 00:10 +0100
    Re: [PATCH] Revert "kernel/stop_machine.c: remove CONFIG_SMP  dependencies" Sudip Mukherjee <sudipm.mukherjee@gmail.com> - 2015-12-22 07:10 +0100
      Re: [PATCH] Revert  "kernel/stop_machine.c: remove CONFIG_SMP dependencies" Andrew Morton <akpm@linux-foundation.org> - 2015-12-22 08:10 +0100
        Re: [PATCH] Revert "kernel/stop_machine.c: remove CONFIG_SMP  dependencies" Stephen Rothwell <sfr@canb.auug.org.au> - 2015-12-22 21:10 +0100

csiph-web