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arm64/vdso: don't leak kernel addresses

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Since commit ad67b74d24 ("printk: hash addresses printed with %p"),
two obfuscated kernel pointer are printed at every boot:

    vdso: 2 pages (1 code @ (____ptrval____), 1 data @ (____ptrval____))

Remove the the print completely, as it's useless without the addresses.

Fixes: ad67b74d24 ("printk: hash addresses printed with %p")
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Matteo Croce <mcroce@redhat.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Matteo Croce 2019-04-01 12:44:47 +02:00 committed by Will Deacon
parent 19d6242ece
commit 0f1bf7e398
1 changed files with 0 additions and 2 deletions
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arch/arm64/kernel/vdso.c
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@ -146,8 +146,6 @@ static int __init vdso_init(void)
}
vdso_pages = (vdso_end - vdso_start) >> PAGE_SHIFT;
pr_info("vdso: %ld pages (%ld code @ %p, %ld data @ %p)\n",
vdso_pages + 1, vdso_pages, vdso_start, 1L, vdso_data);
/* Allocate the vDSO pagelist, plus a page for the data. */
vdso_pagelist = kcalloc(vdso_pages + 1, sizeof(struct page *),