Commit d79b348c authored Jan 23, 2020 by Ard Biesheuvel

infiniband: hfi1: Use EFI GetVariable only when available

Replace the EFI runtime services check with one that tells us whether
EFI GetVariable() is implemented by the firmware.

Cc: Mike Marciniszyn <mike.marciniszyn@intel.com>
Cc: Dennis Dalessandro <dennis.dalessandro@intel.com>
Cc: Doug Ledford <dledford@redhat.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: linux-rdma@vger.kernel.org
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>

parent e5c3b1cc

drivers/infiniband/hw/hfi1/efivar.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -78,7 +78,7 @@ static int read_efi_var(const char name, unsigned long size,
		*size = 0;
		*return_data = NULL;

		if (!efi_enabled(EFI_RUNTIME_SERVICES))
		if (!efi_rt_services_supported(EFI_RT_SUPPORTED_GET_VARIABLE))
		return -EOPNOTSUPP;

		uni_name = kcalloc(strlen(name) + 1, sizeof(efi_char16_t), GFP_KERNEL);

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