| From 6166e7156ec6e92eac4fbb7cfa96429bc2959daa Mon Sep 17 00:00:00 2001 |
| From: Michael Bringmann <mwb@linux.ibm.com> |
| Date: Wed, 15 Jan 2020 08:53:59 -0600 |
| Subject: [PATCH] powerpc/pseries/lparcfg: Fix display of Maximum Memory |
| |
| commit f1dbc1c5c70d0d4c60b5d467ba941fba167c12f6 upstream. |
| |
| 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: Paul Gortmaker <paul.gortmaker@windriver.com> |
| |
| diff --git a/arch/powerpc/platforms/pseries/lparcfg.c b/arch/powerpc/platforms/pseries/lparcfg.c |
| index e33e8bc4b69b..38c306551f76 100644 |
| --- a/arch/powerpc/platforms/pseries/lparcfg.c |
| +++ b/arch/powerpc/platforms/pseries/lparcfg.c |
| @@ -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) |
| -- |
| 2.7.4 |
| |
