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[73.185.129.58]) by smtp.gmail.com with ESMTPSA id v18sm10359588ila.29.2021.02.01.15.26.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 01 Feb 2021 15:26:14 -0800 (PST) From: Alex Elder To: davem@davemloft.net, kuba@kernel.org Cc: elder@kernel.org, evgreen@chromium.org, bjorn.andersson@linaro.org, cpratapa@codeaurora.org, subashab@codeaurora.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH net 2/4] net: ipa: be explicit about endianness Date: Mon, 1 Feb 2021 17:26:07 -0600 Message-Id: <20210201232609.3524451-3-elder@linaro.org> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20210201232609.3524451-1-elder@linaro.org> References: <20210201232609.3524451-1-elder@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Sparse warns that the assignment of the metadata mask for a QMAP endpoint in ipa_endpoint_init_hdr_metadata_mask() is a bad assignment. We know we want the mask value to be big endian, even though the value we write is in host byte order. Use a __force tag to indicate we really mean it. Signed-off-by: Alex Elder --- drivers/net/ipa/ipa_endpoint.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 2.27.0 diff --git a/drivers/net/ipa/ipa_endpoint.c b/drivers/net/ipa/ipa_endpoint.c index 9f4be9812a1f3..448d89da1e456 100644 --- a/drivers/net/ipa/ipa_endpoint.c +++ b/drivers/net/ipa/ipa_endpoint.c @@ -588,7 +588,7 @@ static void ipa_endpoint_init_hdr_metadata_mask(struct ipa_endpoint *endpoint) /* Note that HDR_ENDIANNESS indicates big endian header fields */ if (endpoint->data->qmap) - val = cpu_to_be32(IPA_ENDPOINT_QMAP_METADATA_MASK); + val = (__force u32)cpu_to_be32(IPA_ENDPOINT_QMAP_METADATA_MASK); iowrite32(val, endpoint->ipa->reg_virt + offset); }