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powerpc/pseries/lparcfg: Fix display of Maximum Memory

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[ Upstream commit f1dbc1c5c7 ]

Correct overflow problem in calculation and display of Maximum Memory
value to syscfg.

Signed-off-by: Michael Bringmann <mwb@linux.ibm.com>
[mpe: Only n_lmbs needs casting to unsigned long]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/5577aef8-1d5a-ca95-ff0a-9c7b5977e5bf@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Michael Bringmann 2020-01-15 08:53:59 -06:00 committed by Greg Kroah-Hartman
parent 4113271807
commit 93df1b23b1
1 changed files with 2 additions and 2 deletions
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4
arch/powerpc/platforms/pseries/lparcfg.c
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@ -435,10 +435,10 @@ static void maxmem_data(struct seq_file *m)
{
unsigned long maxmem = 0;
maxmem += drmem_info->n_lmbs * drmem_info->lmb_size;
maxmem += (unsigned long)drmem_info->n_lmbs * drmem_info->lmb_size;
maxmem += hugetlb_total_pages() * PAGE_SIZE;
seq_printf(m, "MaxMem=%ld\n", maxmem);
seq_printf(m, "MaxMem=%lu\n", maxmem);
}
static int pseries_lparcfg_data(struct seq_file *m, void *v)