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List: linux-efi
Subject: [PATCH AUTOSEL 5.1 14/39] x86/efi: fix a -Wtype-limits compilation warning
From: Sasha Levin <sashal () kernel ! org>
Date: 2019-07-03 2:14:49
Message-ID: 20190703021514.17727-14-sashal () kernel ! org
[Download RAW message or body]
From: Qian Cai <cai@lca.pw>
[ Upstream commit 919aef44d73d5d0c04213cb1bc31149cc074e65e ]
Compiling a kernel with W=1 generates this warning,
arch/x86/platform/efi/quirks.c:731:16: warning: comparison of unsigned
expression >= 0 is always true [-Wtype-limits]
Fixes: 3425d934fc03 ("efi/x86: Handle page faults occurring while running ...")
Signed-off-by: Qian Cai <cai@lca.pw>
Acked-by: "Prakhya, Sai Praneeth" <sai.praneeth.prakhya@intel.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/x86/platform/efi/quirks.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/platform/efi/quirks.c b/arch/x86/platform/efi/quirks.c
index a25a9fd987a9..529522c62d89 100644
--- a/arch/x86/platform/efi/quirks.c
+++ b/arch/x86/platform/efi/quirks.c
@@ -724,7 +724,7 @@ void efi_recover_from_page_fault(unsigned long phys_addr)
* Address range 0x0000 - 0x0fff is always mapped in the efi_pgd, so
* page faulting on these addresses isn't expected.
*/
- if (phys_addr >= 0x0000 && phys_addr <= 0x0fff)
+ if (phys_addr <= 0x0fff)
return;
/*
--
2.20.1
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