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If we reset because of a command timeout, we should reset this flag. Otherwise, we might erroneously think the next command after reset is timing out, and trigger another reset. The above behavior effectively neuters the automatic card_reset() behavior, as it means we will never recover from a command timeout properly (and in fact, we might enter an infinite loop: timeout -> reset -> (fake) timeout -> reset -> ... This fixes a bug introduced with introduction of PCIe function level reset support, but it was carried into the SDIO driver when it was converted to use the same codepaths. And this is currently mostly a problem only in the SDIO driver, because it's the only one with automatic card_reset() support (e.g., on command timeout). But it will be a problem for PCIe too, as I'm working on supporting automatic card_reset() for PCIe. Fixes: |
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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.