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;
/*