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[2.34.28.144]) by smtp.gmail.com with ESMTPSA id k21-20020a17090632d500b007ae32daf4b9sm6951686ejk.106.2022.11.23.00.59.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 23 Nov 2022 00:59:31 -0800 (PST) From: Marco Pagani To: Oded Gabbay , Arnd Bergmann , Greg Kroah-Hartman , Nathan Chancellor , Nick Desaulniers , Tom Rix Cc: Marco Pagani , linux-kernel@vger.kernel.org, llvm@lists.linux.dev Subject: [PATCH] habanalabs/gaudi2: added memset for the cq_size register Date: Wed, 23 Nov 2022 09:56:39 +0100 Message-Id: <20221123085640.103084-1-marpagan@redhat.com> X-Mailer: git-send-email 2.38.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" The clang-analyzer reported a warning: "Value stored to 'cq_size_addr' is never read". The cq_size register of dcore0 is not being zeroed using gaudi2_memset_device_lbw(), along with the other cq_* registers, even though the corresponding cq_size_addr variable is set. Signed-off-by: Marco Pagani Reviewed-by: Oded Gabbay --- drivers/misc/habanalabs/gaudi2/gaudi2.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/misc/habanalabs/gaudi2/gaudi2.c b/drivers/misc/habanal= abs/gaudi2/gaudi2.c index 65e6cae6100a..05f30adefb32 100644 --- a/drivers/misc/habanalabs/gaudi2/gaudi2.c +++ b/drivers/misc/habanalabs/gaudi2/gaudi2.c @@ -9165,6 +9165,7 @@ static void gaudi2_restore_user_sm_registers(struct h= l_device *hdev) gaudi2_memset_device_lbw(hdev, cq_lbw_data_addr, size, 0); gaudi2_memset_device_lbw(hdev, cq_base_l_addr, size, 0); gaudi2_memset_device_lbw(hdev, cq_base_h_addr, size, 0); + gaudi2_memset_device_lbw(hdev, cq_size_addr, size, 0); =20 cq_lbw_l_addr =3D mmDCORE0_SYNC_MNGR_GLBL_LBW_ADDR_L_0 + DCORE_OFFSET; cq_lbw_h_addr =3D mmDCORE0_SYNC_MNGR_GLBL_LBW_ADDR_H_0 + DCORE_OFFSET; --=20 2.38.1