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riscv: export flush_icache_all to modules 

This is needed by LKDTM (crash dump test module), it calls
flush_icache_range(), which on RISC-V turns into flush_icache_all(). On
other architectures, the actual implementation is exported, so follow
that precedence and export it here too.

Fixes build of CONFIG_LKDTM that fails with:
ERROR: "flush_icache_all" [drivers/misc/lkdtm/lkdtm.ko] undefined!

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
This commit is contained in:
Olof Johansson 2019-12-16 20:07:04 -08:00 committed by Paul Walmsley
parent 556f47ac60
commit 1833e327a5
1 changed files with 1 additions and 0 deletions
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arch/riscv/mm/cacheflush.c
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@ -22,6 +22,7 @@ void flush_icache_all(void)
else else
on_each_cpu(ipi_remote_fence_i, NULL, 1); on_each_cpu(ipi_remote_fence_i, NULL, 1);
} }
EXPORT_SYMBOL(flush_icache_all);
/* /*
* Performs an icache flush for the given MM context. RISC-V has no direct * Performs an icache flush for the given MM context. RISC-V has no direct