linux-kernel - "arm64: vdso: Substitute gettimeofday() with C implementation" breaks clang build

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Date:   Tue, 25 Jun 2019 08:16:04 -0400
From:   Qian Cai <cai@....pw>
To:     Vincenzo Frascino <vincenzo.frascino@....com>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Will Deacon <will.deacon@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        linux-arm-kernel@...ts.infradead.org,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: "arm64: vdso: Substitute gettimeofday() with C implementation"
 breaks clang build

The linux-next commit "arm64: vdso: Substitute gettimeofday() with C
implementation" [1] breaks clang build.

error: invalid value 'tiny' in '-mcode-model tiny'
make[1]: *** [scripts/Makefile.build:279:
arch/arm64/kernel/vdso/vgettimeofday.o] Error 1
make[1]: *** Waiting for unfinished jobs....
make: *** [arch/arm64/Makefile:180: vdso_prepare] Error 2

[1] https://patchwork.kernel.org/patch/11009663/