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authorMatteo Croce <mcroce@redhat.com>2019-03-18 02:32:36 +0100
committerBen Hutchings <ben@decadent.org.uk>2019-05-11 15:22:49 +0100
commit14c2d9209a135872def8508e3f19c74f0f3fee52 (patch)
tree98585d62fe6319f6fd8964d59ddb212cff15e4ee
parent07efa228ff7bfadaf50f0daa63a228d055f232ce (diff)
percpu: stop printing kernel addresses
commit 00206a69ee32f03e6f40837684dcbe475ea02266 upstream. Since commit ad67b74d2469d9b8 ("printk: hash addresses printed with %p"), at boot "____ptrval____" is printed instead of actual addresses: percpu: Embedded 38 pages/cpu @(____ptrval____) s124376 r0 d31272 u524288 Instead of changing the print to "%px", and leaking kernel addresses, just remove the print completely, cfr. e.g. commit 071929dbdd865f77 ("arm64: Stop printing the virtual memory layout"). Signed-off-by: Matteo Croce <mcroce@redhat.com> Signed-off-by: Dennis Zhou <dennis@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [bwh: Backported to 3.16: adjust context] Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
-rw-r--r--mm/percpu.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/mm/percpu.c b/mm/percpu.c
index 2ddf9a990dbd..7fae38984a21 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -1716,8 +1716,8 @@ int __init pcpu_embed_first_chunk(size_t reserved_size, size_t dyn_size,
#endif
}
- pr_info("PERCPU: Embedded %zu pages/cpu @%p s%zu r%zu d%zu u%zu\n",
- PFN_DOWN(size_sum), base, ai->static_size, ai->reserved_size,
+ pr_info("PERCPU: Embedded %zu pages/cpu s%zu r%zu d%zu u%zu\n",
+ PFN_DOWN(size_sum), ai->static_size, ai->reserved_size,
ai->dyn_size, ai->unit_size);
rc = pcpu_setup_first_chunk(ai, base);
@@ -1830,8 +1830,8 @@ int __init pcpu_page_first_chunk(size_t reserved_size,
}
/* we're ready, commit */
- pr_info("PERCPU: %d %s pages/cpu @%p s%zu r%zu d%zu\n",
- unit_pages, psize_str, vm.addr, ai->static_size,
+ pr_info("PERCPU: %d %s pages/cpu s%zu r%zu d%zu\n",
+ unit_pages, psize_str, ai->static_size,
ai->reserved_size, ai->dyn_size);
rc = pcpu_setup_first_chunk(ai, vm.addr);