linux-kernel - [PATCH 15/16] xtensa: umulsidi3: fix conditional expression

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Message-ID: <20230920052139.10570-16-rdunlap@infradead.org>
Date:   Tue, 19 Sep 2023 22:21:38 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     linux-kernel@...r.kernel.org
Cc:     Randy Dunlap <rdunlap@...radead.org>,
        Chris Zankel <chris@...kel.net>,
        Max Filippov <jcmvbkbc@...il.com>
Subject: [PATCH 15/16] xtensa: umulsidi3: fix conditional expression

Even when a variant has one or more of these defines set to 1, the
multiplier code paths are not used. Change the expression so that the
correct code paths are used.

arch/xtensa/lib/umulsidi3.S:44:38: warning: "XCHAL_NO_MUL" is not defined, evaluates to 0 [-Wundef]
   44 | #if defined(__XTENSA_CALL0_ABI__) && XCHAL_NO_MUL
arch/xtensa/lib/umulsidi3.S:145:38: warning: "XCHAL_NO_MUL" is not defined, evaluates to 0 [-Wundef]
  145 | #if defined(__XTENSA_CALL0_ABI__) && XCHAL_NO_MUL
arch/xtensa/lib/umulsidi3.S:159:5: warning: "XCHAL_NO_MUL" is not defined, evaluates to 0 [-Wundef]
  159 | #if XCHAL_NO_MUL

Fixes: 8939c58d68f9 ("xtensa: add __umulsidi3 helper")
Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Cc: Chris Zankel <chris@...kel.net>
Cc: Max Filippov <jcmvbkbc@...il.com>
---
 arch/xtensa/lib/umulsidi3.S |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff -- a/arch/xtensa/lib/umulsidi3.S b/arch/xtensa/lib/umulsidi3.S
--- a/arch/xtensa/lib/umulsidi3.S
+++ b/arch/xtensa/lib/umulsidi3.S
@@ -3,7 +3,9 @@
 #include <asm/asmmacro.h>
 #include <asm/core.h>
 
-#if !XCHAL_HAVE_MUL16 && !XCHAL_HAVE_MUL32 && !XCHAL_HAVE_MAC16
+#if XCHAL_HAVE_MUL16 || XCHAL_HAVE_MUL32 || XCHAL_HAVE_MAC16
+#define XCHAL_NO_MUL 0
+#else
 #define XCHAL_NO_MUL 1
 #endif