From ab65f49253ff706723ecbf87af74e9383b5e4582 Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Mon, 2 May 2022 17:33:40 +0200 Subject: [PATCH] x86/sev: Fix address space sparse warning Fix: arch/x86/kernel/sev.c:605:16: warning: incorrect type in assignment (different address spaces) arch/x86/kernel/sev.c:605:16: expected struct snp_secrets_page_layout *layout arch/x86/kernel/sev.c:605:16: got void [noderef] __iomem *[assigned] mem Reported-by: kernel test robot Signed-off-by: Borislav Petkov Link: https://lore.kernel.org/r/202205022233.XgNDR7WR-lkp@intel.com --- arch/x86/kernel/sev.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/arch/x86/kernel/sev.c b/arch/x86/kernel/sev.c index 1663750..c05f012 100644 --- a/arch/x86/kernel/sev.c +++ b/arch/x86/kernel/sev.c @@ -589,20 +589,23 @@ static u64 __init get_secrets_page(void) static u64 __init get_snp_jump_table_addr(void) { struct snp_secrets_page_layout *layout; + void __iomem *mem; u64 pa, addr; pa = get_secrets_page(); if (!pa) return 0; - layout = (__force void *)ioremap_encrypted(pa, PAGE_SIZE); - if (!layout) { + mem = ioremap_encrypted(pa, PAGE_SIZE); + if (!mem) { pr_err("Unable to locate AP jump table address: failed to map the SNP secrets page.\n"); return 0; } + layout = (__force struct snp_secrets_page_layout *)mem; + addr = layout->os_area.ap_jump_table_pa; - iounmap(layout); + iounmap(mem); return addr; } -- 2.7.4