linux-kernel - [PATCH -next] mm/debug: use lx% for atomic64

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20190221010819.92039-1-cai@lca.pw>
Date:   Wed, 20 Feb 2019 20:08:19 -0500
From:   Qian Cai <cai@....pw>
To:     akpm@...ux-foundation.org
Cc:     dave@...olabs.net, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, Qian Cai <cai@....pw>
Subject: [PATCH -next] mm/debug: use lx% for atomic64_read() on ppc64le

atomic64_read() on ppc64le returns "long int" while "long long" seems on
all other arches, so deal the special case for ppc64le.

In file included from ./include/linux/printk.h:7,
                 from ./include/linux/kernel.h:15,
                 from mm/debug.c:9:
mm/debug.c: In function 'dump_mm':
./include/linux/kern_levels.h:5:18: warning: format '%llx' expects
argument of type 'long long unsigned int', but argument 19 has type
'long int' [-Wformat=]
 #define KERN_SOH "\001"  /* ASCII Start Of Header */
                  ^~~~~~
./include/linux/kern_levels.h:8:20: note: in expansion of macro
'KERN_SOH'
 #define KERN_EMERG KERN_SOH "0" /* system is unusable */
                    ^~~~~~~~
./include/linux/printk.h:297:9: note: in expansion of macro 'KERN_EMERG'
  printk(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
         ^~~~~~~~~~
mm/debug.c:133:2: note: in expansion of macro 'pr_emerg'
  pr_emerg("mm %px mmap %px seqnum %llu task_size %lu\n"
  ^~~~~~~~
mm/debug.c:140:17: note: format string is defined here
   "pinned_vm %llx data_vm %lx exec_vm %lx stack_vm %lx\n"
              ~~~^
              %lx

Fixes: 70f8a3ca68d3 ("mm: make mm->pinned_vm an atomic64 counter")
Signed-off-by: Qian Cai <cai@....pw>
---
 mm/debug.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/mm/debug.c b/mm/debug.c
index c0b31b6c3877..e4ec3d68833e 100644
--- a/mm/debug.c
+++ b/mm/debug.c
@@ -137,7 +137,12 @@ void dump_mm(const struct mm_struct *mm)
 		"mmap_base %lu mmap_legacy_base %lu highest_vm_end %lu\n"
 		"pgd %px mm_users %d mm_count %d pgtables_bytes %lu map_count %d\n"
 		"hiwater_rss %lx hiwater_vm %lx total_vm %lx locked_vm %lx\n"
-		"pinned_vm %llx data_vm %lx exec_vm %lx stack_vm %lx\n"
+#ifdef __powerpc64__
+		"pinned_vm %lx "
+#else
+		"pinned_vm %llx "
+#endif
+		"data_vm %lx exec_vm %lx stack_vm %lx\n"
 		"start_code %lx end_code %lx start_data %lx end_data %lx\n"
 		"start_brk %lx brk %lx start_stack %lx\n"
 		"arg_start %lx arg_end %lx env_start %lx env_end %lx\n"
-- 
2.17.2 (Apple Git-113)