linux-kernel - [PATCH 22/29] xtensa: implement flush_icache_user

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Date:   Fri, 15 May 2020 16:36:39 +0200
From:   Christoph Hellwig <hch@....de>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        Arnd Bergmann <arnd@...db.de>,
        Roman Zippel <zippel@...ux-m68k.org>
Cc:     Jessica Yu <jeyu@...nel.org>, Michal Simek <monstr@...str.eu>,
        x86@...nel.org, linux-alpha@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-c6x-dev@...ux-c6x.org, linux-hexagon@...r.kernel.org,
        linux-ia64@...r.kernel.org, linux-m68k@...ts.linux-m68k.org,
        linux-mips@...r.kernel.org, openrisc@...ts.librecores.org,
        linuxppc-dev@...ts.ozlabs.org, linux-riscv@...ts.infradead.org,
        linux-sh@...r.kernel.org, sparclinux@...r.kernel.org,
        linux-arch@...r.kernel.org, linux-mm@...ck.org,
        linux-um@...ts.infradead.org, linux-xtensa@...ux-xtensa.org,
        linux-fsdevel@...r.kernel.org
Subject: [PATCH 22/29] xtensa: implement flush_icache_user_range

The Xtensa implementation of flush_icache_range seems to be able to
cope with user addresses.  Just define flush_icache_user_range to
flush_icache_range.

Signed-off-by: Christoph Hellwig <hch@....de>
---
 arch/xtensa/include/asm/cacheflush.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/xtensa/include/asm/cacheflush.h b/arch/xtensa/include/asm/cacheflush.h
index a0d50be5a8cb1..460e666ad0761 100644
--- a/arch/xtensa/include/asm/cacheflush.h
+++ b/arch/xtensa/include/asm/cacheflush.h
@@ -107,6 +107,8 @@ void flush_cache_page(struct vm_area_struct*,
 #define flush_cache_page  local_flush_cache_page
 #endif
 
+#define flush_icache_user_range flush_icache_range
+
 #define local_flush_cache_all()						\
 	do {								\
 		__flush_invalidate_dcache_all();			\
-- 
2.26.2