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NOTICE THAT: "...we don't know whether we need fallthroughs or breaks here and this is just a change to avoid having new warnings when switching to -Wimplicit-fallthrough but this change might be entirely wrong."[1] See the original thread of discussion here: https://lore.kernel.org/patchwork/patch/1036251/ So, in preparation to enabling -Wimplicit-fallthrough, this patch silences the following warnings: drivers/mtd/nand/onenand/onenand_base.c: In function ‘onenand_check_features’: drivers/mtd/nand/onenand/onenand_base.c:3264:6: warning: this statement may fall through [-Wimplicit-fallthrough=] if (ONENAND_IS_DDP(this)) ^ drivers/mtd/nand/onenand/onenand_base.c:3284:2: note: here case ONENAND_DEVICE_DENSITY_2Gb: ^~~~ drivers/mtd/nand/onenand/onenand_base.c:3288:17: warning: this statement may fall through [-Wimplicit-fallthrough=] this->options |= ONENAND_HAS_UNLOCK_ALL; drivers/mtd/nand/onenand/onenand_base.c:3290:2: note: here case ONENAND_DEVICE_DENSITY_1Gb: ^~~~ Warning level 3 was used: -Wimplicit-fallthrough=3 Also, notice that this patch doesn't change any functionality. See the most recent thread of discussion here: https://lore.kernel.org/patchwork/patch/1077395/ This patch is part of the ongoing efforts to enable -Wimplicit-fallthrough. [1] https://lore.kernel.org/lkml/20190509085318.34a9d4be@xps13/ Cc: Miquel Raynal <miquel.raynal@bootlin.com> Suggested-by: Boris Brezillon <boris.brezillon@collabora.com> Suggested-by: Kees Cook <keescook@chromium.org> Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
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.