6c6a07fc7c98f31fffb0a00d2d7a5344df8b4ba8 - SHIFTPHONES/mainline/linux

commit	6c6a07fc7c98f31fffb0a00d2d7a5344df8b4ba8	[log] [tgz]
author	Sven Schnelle <svens@linux.ibm.com>	Wed May 05 22:01:11 2021 +0200
committer	Vasily Gorbik <gor@linux.ibm.com>	Mon Jun 07 17:06:58 2021 +0200
tree	a4f9b24e3f7f82d7241fcffa0991d5fd7b3221c8
parent	17e89e1340a377b2f14a14d7050f609328592793 [diff]

s390/irq: add union/struct to access external interrupt parameters

gcc-11 warns:

arch/s390/kernel/irq.c: In function do_ext_irq:
arch/s390/kernel/irq.c:175:9: warning: memcpy reading 4 bytes from a region of size 0 [-Wstringop-overread]
  175 |         memcpy(&regs->int_code, &S390_lowcore.ext_cpu_addr, 4);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Fix this by adding a struct for int_code to struct lowcore.

Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>

arch/s390/include/asm/lowcore.h[diff]
arch/s390/kernel/irq.c[diff]

2 files changed

tree: a4f9b24e3f7f82d7241fcffa0991d5fd7b3221c8