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We got a warning: drivers/mmc/host/atmel-mci.c:1086:15: warning: variable 'sg_len' set but not used [-Wunused-but-set-variable] Ideally we should check to see if sg_len is zero but looking into the code closely, I didn't find any possible to do that as atmci_start_request didn't even deploy any error handling for its host->prepare_data hook. So even we return error value for iflags like what other host drivers did, for instance, sdhci and dwmmc, it still need some extra work to improve the code. Just remove it to silent the warning, although it isn't perfect. Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.