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From: "Christopher M. Riedl" <cmr@codefail.de>
To: linuxppc-dev@lists.ozlabs.org
Subject: [PATCH v5 04/10] powerpc: Reference param in MSR_TM_ACTIVE() macro
Date: Wed,  3 Feb 2021 12:43:17 -0600	[thread overview]
Message-ID: <20210203184323.20792-5-cmr@codefail.de> (raw)
In-Reply-To: <20210203184323.20792-1-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


  parent reply	other threads:[~2021-02-03 18:54 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-03 18:43 [PATCH v5 00/10] Improve signal performance on PPC64 with KUAP Christopher M. Riedl
2021-02-03 18:43 ` [PATCH v5 01/10] powerpc/uaccess: Add unsafe_copy_from_user Christopher M. Riedl
2021-02-05  4:47   ` Daniel Axtens
2021-02-03 18:43 ` [PATCH v5 02/10] powerpc/signal: Add unsafe_copy_{vsx, fpr}_from_user() Christopher M. Riedl
2021-02-05  5:17   ` Daniel Axtens
2021-02-03 18:43 ` [PATCH v5 03/10] powerpc/signal64: Move non-inline functions out of setup_sigcontext() Christopher M. Riedl
2021-02-08  4:44   ` Daniel Axtens
2021-02-10  4:37     ` Christopher M. Riedl
2021-02-10 21:06       ` Daniel Axtens
2021-02-10 23:51         ` Christopher M. Riedl
2021-02-03 18:43 ` Christopher M. Riedl [this message]
2021-02-12  4:52   ` [PATCH v5 04/10] powerpc: Reference param in MSR_TM_ACTIVE() macro Daniel Axtens
2021-02-03 18:43 ` [PATCH v5 05/10] powerpc/signal64: Remove TM ifdefery in middle of if/else block Christopher M. Riedl
2021-02-12  5:21   ` Daniel Axtens
2021-02-17 19:27     ` Christopher M. Riedl
2021-02-18 10:47       ` Michael Ellerman
2021-02-03 18:43 ` [PATCH v5 06/10] powerpc/signal64: Replace setup_sigcontext() w/ unsafe_setup_sigcontext() Christopher M. Riedl
2021-02-12  5:41   ` Daniel Axtens
2021-02-17 19:31     ` Christopher M. Riedl
2021-02-03 18:43 ` [PATCH v5 07/10] powerpc/signal64: Replace restore_sigcontext() w/ unsafe_restore_sigcontext() Christopher M. Riedl
2021-02-12 21:17   ` Daniel Axtens
2021-02-17 19:32     ` Christopher M. Riedl
2021-02-03 18:43 ` [PATCH v5 08/10] powerpc/signal64: Rewrite handle_rt_signal64() to minimise uaccess switches Christopher M. Riedl
2021-02-03 18:43 ` [PATCH v5 09/10] powerpc/signal64: Rewrite rt_sigreturn() " Christopher M. Riedl
2021-02-03 18:43 ` [PATCH v5 10/10] powerpc/signal64: Use __get_user() to copy sigset_t Christopher M. Riedl
2021-02-05  4:40   ` Christopher M. Riedl
2021-02-09 21:45   ` Christophe Leroy
2021-02-10  4:16     ` Christopher M. Riedl
2021-02-12 21:21   ` Daniel Axtens
2021-02-17 19:53     ` Christopher M. Riedl
2021-02-15 22:02   ` kernel test robot

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