[tip:efi/core] efi: Remove unnecessary (and buggy) .memmap initialization from the Xen EFI driver

tip-bot for Ingo Molnar
2016-04-29T09:54:41Z

Commit-ID: 0ec7ae928a9c19c2b7b8054507d5694a2597065e
Gitweb: http://git.kernel.org/tip/0ec7ae928a9c19c2b7b8054507d5694a2597065e
Author: Ingo Molnar <mingo@kernel.org>
AuthorDate: Fri, 29 Apr 2016 10:31:28 +0200
Committer: Ingo Molnar <mingo@kernel.org>
CommitDate: Fri, 29 Apr 2016 11:06:15 +0200

efi: Remove unnecessary (and buggy) .memmap initialization from the Xen EFI driver

So the following commit:

884f4f66ffd6 ("efi: Remove global 'memmap' EFI memory map")

... triggered the following build warning on x86 64-bit allyesconfig:

drivers/xen/efi.c:290:47: warning: missing braces around initializer [-Wmissing-braces]

It's this initialization in drivers/xen/efi.c:

static const struct efi efi_xen __initconst = {
...
.memmap = NULL, /* Not used under Xen. */
...

which was forgotten about, as .memmap now is an embedded struct:

struct efi_memory_map memmap;

We can remove this initialization - it's an EFI core internal data structure plus
it's not used in the Xen driver anyway.

Reviewed-by: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: ard.biesheuvel@linaro.org
Cc: bp@alien8.de
Cc: linux-tip-commits@vger.kernel.org
Cc: tony.luck@intel.com
Link: http://lkml.kernel.org/r/20160429083128.GA4925@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
drivers/xen/efi.c | 1 -
1 file changed, 1 deletion(-)

diff --git a/drivers/xen/efi.c b/drivers/xen/efi.c
index be7e56a..e9d2135 100644
--- a/drivers/xen/efi.c
+++ b/drivers/xen/efi.c
@@ -316,7 +316,6 @@ static const struct efi efi_xen __initconst = {
.get_next_high_mono_count = xen_efi_get_next_high_mono_count,
.reset_system = NULL, /* Functionality provided by Xen. */
.set_virtual_address_map = NULL, /* Not used under Xen. */
- .memmap = NULL, /* Not used under Xen. */
.flags = 0 /* Initialized later. */
};