Gustavo A. R. Silva fa226f1d81 s390: Replace zero-length array with flexible-array member ... The current codebase makes use of the zero-length array language extension to the C90 standard, but the preferred mechanism to declare variable-length types such as these ones is a flexible array member[1][2], introduced in C99: struct foo { int stuff; struct boo array[]; }; By making use of the mechanism above, we will get a compiler warning in case the flexible array does not occur last in the structure, which will help us prevent some kind of undefined behavior bugs from being inadvertently introduced[3] to the codebase from now on. Also, notice that, dynamic memory allocations won't be affected by this change: "Flexible array members have incomplete type, and so the sizeof operator may not be applied. As a quirk of the original implementation of zero-length arrays, sizeof evaluates to zero."[1] This issue was found with the help of Coccinelle. [1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html [2] https://github.com/KSPP/linux/issues/21 [3] commit 7649773293 ("cxgb3/l2t: Fix undefined behaviour") Link: https://lkml.kernel.org/r/20200221150612.GA9717@embeddedor Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>		2020-02-27 16:02:21 +01:00
..
appldata_base.c	proc/sysctl: add shared variables for range check	2019-07-18 17:08:07 -07:00
appldata_mem.c
appldata_net_sum.c
appldata_os.c	s390: Replace zero-length array with flexible-array member	2020-02-27 16:02:21 +01:00
appldata.h
Makefile	s390: add a few more SPDX identifiers	2017-12-05 07:51:09 +01:00