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x86/efi: fix a -Wtype-limits compilation warning 

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: 3425d934fc ("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>
This commit is contained in:
Qian Cai 2019-06-19 13:47:44 -04:00 committed by Ard Biesheuvel
parent a483fcab38
commit 919aef44d7
1 changed files with 1 additions and 1 deletions
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2
arch/x86/platform/efi/quirks.c
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@ -728,7 +728,7 @@ 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;
/*