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s390: remove all usages of PSW_ADDR_INSN

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Yet another leftover from the 31 bit era. The usual operation
"y = x & PSW_ADDR_INSN" with the PSW_ADDR_INSN mask is a nop for
CONFIG_64BIT.

Therefore remove all usages and hope the code is a bit less confusing.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
This commit is contained in:
Heiko Carstens
2016-01-18 13:12:19 +01:00
committed by Martin Schwidefsky
parent fecc868a66
commit 9cb1ccecb6
14 changed files with 41 additions and 49 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
arch/s390/kernel/dumpstack.c
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@@ -34,22 +34,21 @@ __show_trace(unsigned long sp, unsigned long low, unsigned long high)
unsigned long addr;
while (1) {
sp = sp & PSW_ADDR_INSN;
if (sp < low || sp > high - sizeof(*sf))
return sp;
sf = (struct stack_frame *) sp;
addr = sf->gprs[8] & PSW_ADDR_INSN;
addr = sf->gprs[8];
printk("([<%016lx>] %pSR)\n", addr, (void *)addr);
/* Follow the backchain. */
while (1) {
low = sp;
sp = sf->back_chain & PSW_ADDR_INSN;
sp = sf->back_chain;
if (!sp)
break;
if (sp <= low || sp > high - sizeof(*sf))
return sp;
sf = (struct stack_frame *) sp;
addr = sf->gprs[8] & PSW_ADDR_INSN;
addr = sf->gprs[8];
printk(" [<%016lx>] %pSR\n", addr, (void *)addr);
}
/* Zero backchain detected, check for interrupt frame. */
@@ -57,7 +56,7 @@ __show_trace(unsigned long sp, unsigned long low, unsigned long high)
if (sp <= low || sp > high - sizeof(*regs))
return sp;
regs = (struct pt_regs *) sp;
addr = regs->psw.addr & PSW_ADDR_INSN;
addr = regs->psw.addr;
printk(" [<%016lx>] %pSR\n", addr, (void *)addr);
low = sp;
sp = regs->gprs[15];