linux/drivers/staging/rtl8192u
Gustavo A. R. Silva 5979afa2c4 staging: 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")

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Link: https://lore.kernel.org/r/20200220132908.GA30501@embeddedor
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-23 19:18:54 +01:00
..
ieee80211 staging: Replace zero-length array with flexible-array member 2020-02-23 19:18:54 +01:00
authors
changes
copying
Kconfig staging: rtl8192u: ieee80211: ieee80211_crypt_ccmp.c: Use crypto API ccm(aes) 2019-08-18 08:51:11 +02:00
Makefile staging: rtl8192u: remove unneeded compiler flags 2020-01-10 13:28:15 +01:00
r819xU_cmdpkt.c staging: rtl8192u: fix indentation issue 2019-11-15 14:11:23 +08:00
r819xU_cmdpkt.h
r819xU_firmware_img.c
r819xU_firmware_img.h
r819xU_firmware.c staging: rtl8192u: Fix indentation 2019-08-28 22:22:13 +02:00
r819xU_firmware.h
r819xU_phy.c staging: rtl8192u: Add space to fix style issue 2020-02-09 16:23:02 -08:00
r819xU_phy.h
r819xU_phyreg.h
r8180_93cx6.c staging: rtl8192u: Add space around binary operators 2019-08-25 10:27:39 +02:00
r8180_93cx6.h
r8190_rtl8256.c staging: rtl8192u: Fix indentation for cleaner code 2019-10-07 12:25:47 +02:00
r8190_rtl8256.h
r8192U_core.c Staging/IIO patches for 5.6-rc1 2020-01-29 10:15:11 -08:00
r8192U_dm.c drivers/staging/rtl8192u: fix indentation issue, remove extra tab 2019-07-25 09:58:26 +02:00
r8192U_dm.h staging: rtl8192u: Remove function dm_backup_dynamic_mechanism_state() 2019-07-01 09:11:23 +02:00
r8192U_hw.h staging: rtl8192u: add proper SPDX identifiers on files that did not have them. 2019-04-03 11:10:17 +02:00
r8192U_wx.c staging: rtl8192u: remove header include path to ieee80211/ 2020-01-10 13:28:14 +01:00
r8192U_wx.h staging: rtl8192u: add proper SPDX identifiers on files that did not have them. 2019-04-03 11:10:17 +02:00
r8192U.h