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Tue, 22 Sep 2026 11:27:14 -0700 (PDT) Received: from ryzen.lan ([2601:644:8000:7a86::e35]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-532eaec2751sm3064991cf.1.2026.09.22.11.27.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 22 Sep 2026 11:27:13 -0700 (PDT) From: Rosen Penev To: linux-pm@vger.kernel.org Cc: Georgi Djakov , Dmitry Baryshkov , Rosen Penev , linux-arm-msm@vger.kernel.org (open list:ARM/QUALCOMM MAILING LIST), linux-kernel@vger.kernel.org (open list) Subject: [PATCH] interconnect: qcom: fix endian annotations of BCM aux data Date: Tue, 22 Sep 2026 11:27:11 -0700 Message-ID: <20260922182711.25176-1-rosenp@gmail.com> X-Mailer: git-send-email 2.55.0 Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit struct qcom_icc_bcm::aux_data stores the values parsed from the command db, converted to native byte order, but is typed as the raw little-endian struct bcm_db. Sparse therefore complains when the converted values are assigned to the __le32/__le16 fields and when those restricted fields are used in bandwidth calculations. Give aux_data its own native-endian struct type so the parsed values are stored with matching annotations, keeping struct bcm_db as the on-disk format returned by cmd_db_read_aux_data(). No functional change. Fixes: c96fc14322ce ("interconnect: qcom: add COMPILE_TEST") Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202609221350.3Y8MOce9-lkp@intel.com/ Assisted-by: LLM Signed-off-by: Rosen Penev --- drivers/interconnect/qcom/icc-rpmh.h | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-) diff --git a/drivers/interconnect/qcom/icc-rpmh.h b/drivers/interconnect/qcom/icc-rpmh.h index 09d8791402dc..30ec31eafcfb 100644 --- a/drivers/interconnect/qcom/icc-rpmh.h +++ b/drivers/interconnect/qcom/icc-rpmh.h @@ -45,6 +45,9 @@ struct qcom_icc_provider { * @width: multiplier used to convert bytes/sec bw value to an RPMh msg * @vcd: virtual clock domain that this bcm belongs to * @reserved: reserved field + * + * This is the little-endian on-disk format returned by + * cmd_db_read_aux_data(). */ struct bcm_db { __le32 unit; @@ -53,6 +56,20 @@ struct bcm_db { u8 reserved; }; +/** + * struct bcm_aux_data - Auxiliary data of a BCM in native byte order + * @unit: divisor used to convert bytes/sec bw value to an RPMh msg + * @width: multiplier used to convert bytes/sec bw value to an RPMh msg + * @vcd: virtual clock domain that this bcm belongs to + * @reserved: reserved field + */ +struct bcm_aux_data { + u32 unit; + u16 width; + u8 vcd; + u8 reserved; +}; + #define MAX_PORTS 4 /** @@ -135,7 +152,7 @@ struct qcom_icc_bcm { u32 enable_mask; bool dirty; bool keepalive; - struct bcm_db aux_data; + struct bcm_aux_data aux_data; struct list_head list; struct list_head ws_list; size_t num_nodes; -- 2.55.0