From: "Christopher M. Riedl" <cmr@codefail.de>
To: linuxppc-dev@lists.ozlabs.org
Subject: [PATCH v4 04/10] powerpc: Reference param in MSR_TM_ACTIVE() macro
Date: Wed, 27 Jan 2021 22:04:18 -0600 [thread overview]
Message-ID: <20210128040424.12720-5-cmr@codefail.de> (raw)
In-Reply-To: <20210128040424.12720-1-cmr@codefail.de>
Unlike the other MSR_TM_* macros, MSR_TM_ACTIVE does not reference or
use its parameter unless CONFIG_PPC_TRANSACTIONAL_MEM is defined. This
causes an 'unused variable' compile warning unless the variable is also
guarded with CONFIG_PPC_TRANSACTIONAL_MEM.
Reference but do nothing with the argument in the macro to avoid a
potential compile warning.
Signed-off-by: Christopher M. Riedl <cmr@codefail.de>
---
arch/powerpc/include/asm/reg.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index e40a921d78f9..c5a3e856191c 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -124,7 +124,7 @@
#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
#define MSR_TM_ACTIVE(x) (((x) & MSR_TS_MASK) != 0) /* Transaction active? */
#else
-#define MSR_TM_ACTIVE(x) 0
+#define MSR_TM_ACTIVE(x) ((void)(x), 0)
#endif
#if defined(CONFIG_PPC_BOOK3S_64)
--
2.26.1
next prev parent reply other threads:[~2021-01-28 4:10 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-28 4:04 [PATCH v4 00/10] Improve signal performance on PPC64 with KUAP Christopher M. Riedl
2021-01-28 4:04 ` [PATCH v4 01/10] powerpc/uaccess: Add unsafe_copy_from_user Christopher M. Riedl
2021-01-28 4:04 ` [PATCH v4 02/10] powerpc/signal: Add unsafe_copy_{vsx, fpr}_from_user() Christopher M. Riedl
2021-01-28 10:38 ` David Laight
2021-01-28 12:05 ` Christophe Leroy
2021-02-01 15:55 ` Christopher M. Riedl
2021-02-01 16:15 ` David Laight
2021-02-01 16:55 ` Christopher M. Riedl
2021-02-01 17:37 ` David Laight
2021-02-01 17:43 ` Christopher M. Riedl
2021-02-01 16:54 ` Gabriel Paubert
2021-02-01 20:55 ` Christopher M. Riedl
2021-02-04 6:09 ` Michael Ellerman
2021-01-28 4:04 ` [PATCH v4 03/10] powerpc/signal64: Move non-inline functions out of setup_sigcontext() Christopher M. Riedl
2021-01-28 4:04 ` Christopher M. Riedl [this message]
2021-01-28 4:04 ` [PATCH v4 05/10] powerpc/signal64: Remove TM ifdefery in middle of if/else block Christopher M. Riedl
2021-01-28 4:04 ` [PATCH v4 06/10] powerpc/signal64: Replace setup_sigcontext() w/ unsafe_setup_sigcontext() Christopher M. Riedl
2021-01-28 4:04 ` [PATCH v4 07/10] powerpc/signal64: Replace restore_sigcontext() w/ unsafe_restore_sigcontext() Christopher M. Riedl
2021-01-28 4:04 ` [PATCH v4 08/10] powerpc/signal64: Rewrite handle_rt_signal64() to minimise uaccess switches Christopher M. Riedl
2021-01-28 4:04 ` [PATCH v4 09/10] powerpc/signal64: Rewrite rt_sigreturn() " Christopher M. Riedl
2021-01-28 4:04 ` [PATCH v4 10/10] powerpc/signal64: Use __get_user() to copy sigset_t Christopher M. Riedl
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