Thread (2 messages) 2 messages, 2 authors, 2025-09-18

Re: [PATCH] powerpc: cell: make spu_subsys const

From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2025-09-18 16:19:49
Also in: lkml

On Thu, Sep 18, 2025 at 02:16:33PM +0000, Adrian Barnaś wrote:
quoted hunk ↗ jump to hunk
Because driver core can properly handle constant struct bus_type,
move the spu_subsys to be a constant structure as well, placing it into
read-only memory which can not be modified at runtime.

Signed-off-by: Adrian Barnaś <redacted>
---
 arch/powerpc/platforms/cell/spu_base.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c
index 2c07387201d0..733b512992c0 100644
--- a/arch/powerpc/platforms/cell/spu_base.c
+++ b/arch/powerpc/platforms/cell/spu_base.c
@@ -464,7 +464,7 @@ void spu_init_channels(struct spu *spu)
 }
 EXPORT_SYMBOL_GPL(spu_init_channels);
 
-static struct bus_type spu_subsys = {
+static const struct bus_type spu_subsys = {
 	.name = "spu",
 	.dev_name = "spu",
 };
-- 
2.51.0.470.ga7dc726c21-goog
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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