diff options
| author | Sven Schnelle <svens@linux.ibm.com> | 2021-05-05 22:01:11 +0200 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2021-06-07 17:06:58 +0200 |
| commit | 6c6a07fc7c98f31fffb0a00d2d7a5344df8b4ba8 (patch) | |
| tree | a4f9b24e3f7f82d7241fcffa0991d5fd7b3221c8 /arch/s390/kernel/irq.c | |
| 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(®s->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>
Diffstat (limited to 'arch/s390/kernel/irq.c')
| -rw-r--r-- | arch/s390/kernel/irq.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c index 714269e10eec..169258012530 100644 --- a/arch/s390/kernel/irq.c +++ b/arch/s390/kernel/irq.c @@ -172,7 +172,7 @@ void noinstr do_ext_irq(struct pt_regs *regs) if (user_mode(regs)) update_timer_sys(); - memcpy(®s->int_code, &S390_lowcore.ext_cpu_addr, 4); + regs->int_code = S390_lowcore.ext_int_code_addr; regs->int_parm = S390_lowcore.ext_params; regs->int_parm_long = S390_lowcore.ext_params2; |