[PATCH] percpu: remove export of pcpu_base_addr

[PATCH] percpu: remove export of pcpu_base_addr

[Greg Kroah-Hartman]

This is not needed by any modules, so remove the export.

Cc: Dennis Zhou <dennis@kernel.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Christoph Lameter <cl@linux.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 mm/percpu.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/mm/percpu.c b/mm/percpu.c
index 7f2e0151c4e2..a43039629aa4 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -146,7 +146,6 @@ static unsigned int pcpu_high_unit_cpu __ro_after_init;
 
 /* the address of the first chunk which starts with the kernel static area */
 void *pcpu_base_addr __ro_after_init;
-EXPORT_SYMBOL_GPL(pcpu_base_addr);
 
 static const int *pcpu_unit_map __ro_after_init;		/* cpu -> unit */
 const unsigned long *pcpu_unit_offsets __ro_after_init;	/* cpu -> unit offset */
-- 
2.32.0

Re: [PATCH] percpu: remove export of pcpu_base_addr

[Christoph Hellwig]

On Thu, Jul 22, 2021 at 08:58:14PM +0200, Greg Kroah-Hartman wrote:
> This is not needed by any modules, so remove the export.

Looks good.  Note that all non-static users only want the delta,
so this could be cleaned up with a helper as well.  Also
__addr_to_pcpu_ptr and __pcpu_ptr_to_addr__pcpu_ptr_to_addr are
never actually overriden by arch code, so we can remove the ifndef
there.

Reviewed-by: Christoph Hellwig <hch@lst.de>