[PATCH V5 17/21] riscv: compat: vdso: Add setup additional pages implementation
Rolf Eike Beer
eb at emlix.com
Wed Feb 23 04:12:03 PST 2022
> @@ -66,35 +68,35 @@ static int vdso_mremap(const struct vm_special_mapping
> *sm, return 0;
> }
>
> -static int __init __vdso_init(void)
> +static int __init __vdso_init(struct __vdso_info *vdso_info)
> {
> unsigned int i;
> struct page **vdso_pagelist;
> unsigned long pfn;
>
> - if (memcmp(vdso_info.vdso_code_start, "\177ELF", 4)) {
> + if (memcmp(vdso_info->vdso_code_start, "\177ELF", 4)) {
> pr_err("vDSO is not a valid ELF object!\n");
> return -EINVAL;
> }
>
Does anyone actually guarantee that this is at least this 4 bytes long?
Eike
--
Rolf Eike Beer, emlix GmbH, https://www.emlix.com
Fon +49 551 30664-0, Fax +49 551 30664-11
Gothaer Platz 3, 37083 Göttingen, Germany
Sitz der Gesellschaft: Göttingen, Amtsgericht Göttingen HR B 3160
Geschäftsführung: Heike Jordan, Dr. Uwe Kracke – Ust-IdNr.: DE 205 198 055
emlix - smart embedded open source
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