update Coccinelle URL

Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 505

Based on 1 normalized pattern(s):

gplv2

extracted by the scancode license scanner the SPDX license identifier

GPL-2.0-only

has been chosen to replace the boilerplate/reference in 58 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081207.556988620@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Coccinelle: Update the options used to the new option scheme

spatch has changed its option scheme.
E.g., --no_show_diff is now --no-show-diff

This patch updates:
- scripts/coccicheck
- Semantic patches under scripts/coccinelle/

Signed-off-by: Nicolas Palix <nicolas.palix@imag.fr>
Signed-off-by: Michal Marek <mmarek@suse.cz>

scripts/coccinelle: improve the coverage of some semantic patches

This patch ensures that all semantic patches in the scripts/coccinelle
directory provide the report option. Report messages that include line
numbers now have the line number preceded by "line" for easier subsequent
processing.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Michal Marek <mmarek@suse.cz>

Coccinelle: Add null/eno.cocci

The various basic memory allocation functions don't return ERR_PTR

Signed-off-by: Nicolas Palix <npalix@diku.dk>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Michal Marek <mmarek@suse.cz>