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parisc: Fix /proc/cpuinfo output for lscpu

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commit 9f5ba4b3e1 upstream.

The lscpu command is broken since commit cab56b51ec ("parisc: Fix
device names in /proc/iomem") added the PA pathname to all PA
devices, includig the CPUs.

lscpu parses /proc/cpuinfo and now believes it found different CPU
types since every CPU is listed with an unique identifier (PA
pathname).

Fix this problem by simply dropping the PA pathname when listing the
CPUs in /proc/cpuinfo. There is no need to show the pathname in this
procfs file.

Fixes: cab56b51ec ("parisc: Fix device names in /proc/iomem")
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org> # v4.9+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Helge Deller 2023-08-18 22:48:04 +02:00 committed by Greg Kroah-Hartman
parent 1f03e6dd19
commit 9f73fd6972
1 changed files with 10 additions and 3 deletions
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13
arch/parisc/kernel/processor.c
View file

@ -373,10 +373,18 @@ int
show_cpuinfo (struct seq_file *m, void *v)
{
unsigned long cpu;
char cpu_name[60], *p;
/* strip PA path from CPU name to not confuse lscpu */
strlcpy(cpu_name, per_cpu(cpu_data, 0).dev->name, sizeof(cpu_name));
p = strrchr(cpu_name, '[');
if (p)
*(--p) = 0;
for_each_online_cpu(cpu) {
const struct cpuinfo_parisc *cpuinfo = &per_cpu(cpu_data, cpu);
#ifdef CONFIG_SMP
const struct cpuinfo_parisc *cpuinfo = &per_cpu(cpu_data, cpu);
if (0 == cpuinfo->hpa)
continue;
#endif
@ -421,8 +429,7 @@ show_cpuinfo (struct seq_file *m, void *v)
seq_printf(m, "model\t\t: %s - %s\n",
boot_cpu_data.pdc.sys_model_name,
cpuinfo->dev ?
cpuinfo->dev->name : "Unknown");
cpu_name);
seq_printf(m, "hversion\t: 0x%08x\n"
"sversion\t: 0x%08x\n",