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([176.200.123.4]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-4606f2b0c35sm3661992f8f.22.2026.06.12.01.13.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 12 Jun 2026 01:13:53 -0700 (PDT) Message-ID: <6a2bbfc1.cf2df9a4.29e9ad.911b@mx.google.com> X-Google-Original-Message-ID: Date: Fri, 12 Jun 2026 10:13:49 +0200 From: Christian Marangi To: Arnd Bergmann Cc: Srinivas Kandagatla , Nathan Chancellor , Arnd Bergmann , Nick Desaulniers , Bill Wendling , Justin Stitt , Greg Kroah-Hartman , linux-kernel@vger.kernel.org, llvm@lists.linux.dev Subject: Re: [PATCH] nvmem: airoha: add ARM64 dependency References: <20260611125822.3386722-1-arnd@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260611125822.3386722-1-arnd@kernel.org> On Thu, Jun 11, 2026 at 02:58:00PM +0200, Arnd Bergmann wrote: > From: Arnd Bergmann > > The driver already depends on HAVE_ARM_SMCCC and ARCH_AIROHA, but both > are available for 32-bit and 64-bit targets. However, the smccc invocation > fails on thumb2 builds with clang: > > drivers/nvmem/airoha-smc-efuses.c:38:2: error: write to reserved register 'R7' > 38 | arm_smccc_1_1_invoke(AIROHA_SMC_EFUSE_FID, > | ^ > note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) > arch/arm/include/asm/opcodes.h:215:2: note: expanded from macro '__inst_arm_thumb32' > 215 | __inst_thumb32(thumb_opcode) > | ^ > > Since the driver is only used on the 64-bit an7581 soc, avoid this > problem with a stricter dependency. > > Fixes: 25e001fcc1e6 ("nvmem: airoha: Add support for SMC eFUSE") > Signed-off-by: Arnd Bergmann Reviewed-by: Christian Marangi -- Ansuel