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platform/x86: intel_pmc_ipc: Mark ipc_data_readb() as __maybe_unused 

The function is currently not used, however it is part of the API and
might be used in the future. Adding the attribute fixes the following
warning when building with clang:

    drivers/platform/x86/intel_pmc_ipc.c:189:18: error: unused function
        'ipc_data_readb' [-Werror,-Wunused-function]

Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
This commit is contained in:
Matthias Kaehlcke 2017-05-25 15:15:10 -07:00 committed by Andy Shevchenko
parent 3cfd956b02
commit 6bee1af9dc
1 changed files with 1 additions and 1 deletions
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2
drivers/platform/x86/intel_pmc_ipc.c
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@ -186,7 +186,7 @@ static inline void ipc_data_writel(u32 data, u32 offset)
writel(data, ipcdev.ipc_base + IPC_WRITE_BUFFER + offset);
}
static inline u8 ipc_data_readb(u32 offset)
static inline u8 __maybe_unused ipc_data_readb(u32 offset)
{
return readb(ipcdev.ipc_base + IPC_READ_BUFFER + offset);
}