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    Subject[PATCH AUTOSEL 5.5 338/542] raid6/test: fix a compilation warning
    Date
    From: Zhengyuan Liu <liuzhengyuan@kylinos.cn>

    [ Upstream commit 5e5ac01c2b8802921fee680518a986011cb59820 ]

    The compilation warning is redefination showed as following:

    In file included from tables.c:2:
    ../../../include/linux/export.h:180: warning: "EXPORT_SYMBOL" redefined
    #define EXPORT_SYMBOL(sym) __EXPORT_SYMBOL(sym, "")

    In file included from tables.c:1:
    ../../../include/linux/raid/pq.h:61: note: this is the location of the previous definition
    #define EXPORT_SYMBOL(sym)

    Fixes: 69a94abb82ee ("export.h, genksyms: do not make genksyms calculate CRC of trimmed symbols")
    Signed-off-by: Zhengyuan Liu <liuzhengyuan@kylinos.cn>
    Signed-off-by: Song Liu <songliubraving@fb.com>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    include/linux/raid/pq.h | 2 ++
    lib/raid6/mktables.c | 2 +-
    2 files changed, 3 insertions(+), 1 deletion(-)

    diff --git a/include/linux/raid/pq.h b/include/linux/raid/pq.h
    index 0b6e7ad9cd2a8..e0ddb47f44020 100644
    --- a/include/linux/raid/pq.h
    +++ b/include/linux/raid/pq.h
    @@ -58,7 +58,9 @@ extern const char raid6_empty_zero_page[PAGE_SIZE];
    #define enable_kernel_altivec()
    #define disable_kernel_altivec()

    +#undef EXPORT_SYMBOL
    #define EXPORT_SYMBOL(sym)
    +#undef EXPORT_SYMBOL_GPL
    #define EXPORT_SYMBOL_GPL(sym)
    #define MODULE_LICENSE(licence)
    #define MODULE_DESCRIPTION(desc)
    diff --git a/lib/raid6/mktables.c b/lib/raid6/mktables.c
    index 9c485df1308fb..f02e10fa62381 100644
    --- a/lib/raid6/mktables.c
    +++ b/lib/raid6/mktables.c
    @@ -56,8 +56,8 @@ int main(int argc, char *argv[])
    uint8_t v;
    uint8_t exptbl[256], invtbl[256];

    - printf("#include <linux/raid/pq.h>\n");
    printf("#include <linux/export.h>\n");
    + printf("#include <linux/raid/pq.h>\n");

    /* Compute multiplication table */
    printf("\nconst u8 __attribute__((aligned(256)))\n"
    --
    2.20.1
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