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[82.69.66.36]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4980878dbaesm367219305e9.12.2026.08.03.02.47.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 03 Aug 2026 02:47:23 -0700 (PDT) From: David Laight To: Borislav Betkov , Ingo Molnar , Thomas Gleinxer , Dave Hansen , x86@kernel.org, Andrew Morton , linux-kernel@vger.kernel.org Cc: David Laight , Nicolas Pitre , "H. Peter Anvin" , Peter Zijlstra , =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= , rodrigo.alencar@analog.com, jic23@kernel.org Subject: [PATCH 0/2] x86: Use "er" asm constriant for add/sub Date: Mon, 3 Aug 2026 10:47:00 +0100 Message-Id: <20260803094702.3852-1-david.laight.linux@gmail.com> X-Mailer: git-send-email 2.39.5 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The x86 instruction set only supports 32bit signed immediate values for add/sub. Replace the "ir" constraint with "er" to avoid build errors. Found by a patch that added used mul_u64_add_u64_div_u64() to do a rounding divide by 2^32 (perhaps not the best way to do this). A quick grep only found one other affected file. David Laight (2): lib: mul_u64_add_u64_div_u64: Fix addition of large constants x86/local: local_add/local_sub: Support large immediate values arch/x86/include/asm/div64.h | 2 +- arch/x86/include/asm/local.h | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) -- 2.39.5