In the MMC subsystem, we see such initializers that only clears the
first member explicitly.
For example,
struct mmc_request mrq = {NULL};
sets the first member (.sbc) to NULL explicitly. However, this is
an unstable form because we may insert a non-pointer member at the
top of the struct mmc_request in the future. (if we do so, the
compiler will spit warnings.)
So, using a designated initializer is preferred coding style. The
expression above is equivalent to:
struct mmc_request mrq = { .sbc = NULL };
Of course, this does not express our intention. We want to fill
all struct members with zeros. Please note struct members are
implicitly zero-cleared unless otherwise specified in the initializer.
After all, the most reasonable (and stable) form is:
struct mmc_request mrq = {};
Do likewise for mmc_command, mmc_data as well.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
With gcc-4.1.2:
mmc/core/block.c: In function ‘mmc_blk_issue_discard_rq’:
mmc/core/block.c:1150: warning: ‘arg’ may be used uninitialized in this function
mmc/core/block.c:1150: warning: ‘nr’ may be used uninitialized in this function
mmc/core/block.c:1150: warning: ‘from’ may be used uninitialized in this function
While this is a false positive, it can be avoided easily by jumping over
the checks for "err" that are always false.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This was entirely automated, using the script by Al:
PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*<asm/uaccess.h>'
sed -i -e "s!$PATT!#include <linux/uaccess.h>!" \
$(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h)
to do the replacement at the end of the merge window.
Requested-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- Move files from the card directory to the core directory to enable
future clean-ups of the generic mmc header files and interfaces.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=U2+h
-----END PGP SIGNATURE-----
Merge tag 'mmc-v4.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull another MMC update from Ulf Hansson:
"Here's a second pull request for MMC for v4.10.
As a matter of fact it's only one change that moves some mmc files
around. I thought it was a good idea to get this into v4.10, as it
gives us a nice and fresh base for v4.11. Summary:
MMC core:
- Move files from the card directory to the core directory to enable
future clean-ups of the generic mmc header files and interfaces"
* tag 'mmc-v4.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: block: Move files to core
Once upon a time it made sense to keep the mmc block device driver and its
related code, in its own directory called card. Over time, more an more
functions/structures have become shared through generic mmc header files,
between the core and the card directory. In other words, the relationship
between them has become closer.
By sharing functions/structures via generic header files, it becomes easy
for outside users to abuse them. In a way to avoid that from happen, let's
move the files from card directory into the core directory, as it enables
us to move definitions of functions/structures into mmc core specific
header files.
Note, this is only the first step in providing a cleaner mmc interface for
outside users. Following changes will do the actual cleanup, as that is not
part of this change.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
