linux-kernel - [PATCH 22/31] asm-generic: add a flush_icache_user

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Message-Id: <20200510075510.987823-23-hch@lst.de>
Date:   Sun, 10 May 2020 09:55:01 +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 22/31] asm-generic: add a flush_icache_user_range stub

Define flush_icache_user_range to flush_icache_range unless the
architecture provides its own implementation.

Signed-off-by: Christoph Hellwig <hch@....de>
---
 include/asm-generic/cacheflush.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/asm-generic/cacheflush.h b/include/asm-generic/cacheflush.h
index 2c9686fefb715..907fa5d164944 100644
--- a/include/asm-generic/cacheflush.h
+++ b/include/asm-generic/cacheflush.h
@@ -66,6 +66,10 @@ static inline void flush_icache_range(unsigned long start, unsigned long end)
 }
 #endif
 
+#ifndef flush_icache_user_range
+#define flush_icache_user_range flush_icache_range
+#endif
+
 #ifndef flush_icache_page
 static inline void flush_icache_page(struct vm_area_struct *vma,
 				     struct page *page)
-- 
2.26.2