[PATCH RESEND] i2c: atr: annotate i2c_atr_adap_desc->aliases with __counted_by_ptr

Thorsten Blum posted 1 patch 5 days, 7 hours ago
include/linux/i2c-atr.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
[PATCH RESEND] i2c: atr: annotate i2c_atr_adap_desc->aliases with __counted_by_ptr
Posted by Thorsten Blum 5 days, 7 hours ago
Add the __counted_by_ptr() compiler attribute to ->aliases to improve
bounds checking via CONFIG_UBSAN_BOUNDS and CONFIG_FORTIFY_SOURCE.

Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
---
 include/linux/i2c-atr.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/i2c-atr.h b/include/linux/i2c-atr.h
index 2bb54dc87c8e..b52a7b9ec536 100644
--- a/include/linux/i2c-atr.h
+++ b/include/linux/i2c-atr.h
@@ -71,7 +71,7 @@ struct i2c_atr_adap_desc {
 	struct device *parent;
 	struct fwnode_handle *bus_handle;
 	size_t num_aliases;
-	u16 *aliases;
+	u16 *aliases __counted_by_ptr(num_aliases);
 };
 
 /**
Re: [PATCH RESEND] i2c: atr: annotate i2c_atr_adap_desc->aliases with __counted_by_ptr
Posted by Andi Shyti 6 hours ago
Hi Thorsten,

On Thu, Jun 11, 2026 at 11:55:02PM +0200, Thorsten Blum wrote:
> Add the __counted_by_ptr() compiler attribute to ->aliases to improve
> bounds checking via CONFIG_UBSAN_BOUNDS and CONFIG_FORTIFY_SOURCE.
> 
> Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
> Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>

merged in i2c/i2c-host.

Thanks,
Andi