From: Thorsten Blum <thorsten.blum@linux.dev>
To: Oleg Nesterov <oleg@redhat.com>, Chris Zankel <chris@zankel.net>,
Max Filippov <jcmvbkbc@gmail.com>
Cc: Thorsten Blum <thorsten.blum@linux.dev>, linux-kernel@vger.kernel.org
Subject: [PATCH] xtensa: ptrace: Remove zero-length alignment array
Date: Wed, 19 Feb 2025 12:48:00 +0100 [thread overview]
Message-ID: <20250219114759.20110-2-thorsten.blum@linux.dev> (raw)
Use a compiler attribute to align the areg field to 16 bytes instead of
using a zero-length alignment array.
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
---
arch/xtensa/include/asm/ptrace.h | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/arch/xtensa/include/asm/ptrace.h b/arch/xtensa/include/asm/ptrace.h
index 86c70117371b..4871e5a4d6fb 100644
--- a/arch/xtensa/include/asm/ptrace.h
+++ b/arch/xtensa/include/asm/ptrace.h
@@ -72,13 +72,10 @@ struct pt_regs {
/* Additional configurable registers that are used by the compiler. */
xtregs_opt_t xtregs_opt;
- /* Make sure the areg field is 16 bytes aligned. */
- int align[0] __attribute__ ((aligned(16)));
-
/* current register frame.
* Note: The ESF for kernel exceptions ends after 16 registers!
*/
- unsigned long areg[XCHAL_NUM_AREGS];
+ unsigned long areg[XCHAL_NUM_AREGS] __aligned(16);
};
# define arch_has_single_step() (1)
--
2.48.1
next reply other threads:[~2025-02-19 11:50 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-19 11:48 Thorsten Blum [this message]
2025-02-19 17:10 ` [PATCH] xtensa: ptrace: Remove zero-length alignment array Max Filippov
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