linux_dsm_epyc7002/drivers/tty
Gustavo A. R. Silva 2f202d03a5 tty: n_gsm: 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
inadvertenly 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/20200212193523.GA28826@embeddedor
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-12 13:57:36 -08:00
..
hvc TTY/Serial patches for 5.5-rc1 2019-12-03 14:09:14 -08:00
ipwireless
serdev Merge 5.5-rc6 into tty-next 2020-01-13 12:13:05 +01:00
serial tty/serial: 8250_exar: Replace zero-length array with flexible-array member 2020-02-12 12:07:12 -08:00
vt kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
amiserial.c Remove every trace of SERIAL_MAGIC 2019-11-13 19:01:14 +08:00
cyclades.c remove ioremap_nocache and devm_ioremap_nocache 2020-01-06 09:45:59 +01:00
ehv_bytechan.c
goldfish.c
isicom.c
Kconfig tty: Fix Kconfig indentation, continued 2019-11-21 14:38:31 +01:00
Makefile
mips_ejtag_fdc.c remove ioremap_nocache and devm_ioremap_nocache 2020-01-06 09:45:59 +01:00
moxa.c remove ioremap_nocache and devm_ioremap_nocache 2020-01-06 09:45:59 +01:00
moxa.h
mxser.c
mxser.h
n_gsm.c tty: n_gsm: Replace zero-length array with flexible-array member 2020-02-12 13:57:36 -08:00
n_hdlc.c tty: n_hdlc: Use flexible-array member and struct_size() helper 2020-01-23 19:22:49 +01:00
n_null.c
n_r3964.c
n_tracerouter.c
n_tracesink.c
n_tracesink.h
n_tty.c n_tty: check printk arguments for n_tty_trace 2020-02-10 12:34:43 -08:00
nozomi.c
pty.c
rocket_int.h
rocket.c tty: rocket: reduce stack usage 2019-11-04 17:42:28 +01:00
rocket.h
synclink_gt.c TTY/Serial driver updates for 5.6-rc1 2020-01-29 10:13:27 -08:00
synclink.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2020-01-28 16:02:33 -08:00
synclinkmp.c TTY/Serial driver updates for 5.6-rc1 2020-01-29 10:13:27 -08:00
sysrq.c proc: convert everything to "struct proc_ops" 2020-02-04 03:05:26 +00:00
tty_audit.c
tty_baudrate.c tty: baudrate: SPARC supports few more baud rates 2020-01-22 10:23:26 +01:00
tty_buffer.c
tty_io.c tty: drop useless variable initialisation in tty_kopen() 2019-12-17 14:42:45 +01:00
tty_ioctl.c
tty_jobctrl.c
tty_ldisc.c tty_ldisc: simplify tty_ldisc_autoload initialization 2019-10-04 15:11:25 +02:00
tty_ldsem.c locking/lockdep: Remove unused @nested argument from lock_release() 2019-10-09 12:46:10 +02:00
tty_mutex.c
tty_port.c tty: always relink the port 2019-12-30 19:34:44 +01:00
ttynull.c
vcc.c