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Message-ID: <20190415055109.GB9279@infradead.org> Date: Sun, 14 Apr 2019 22:51:09 -0700 From: Christoph Hellwig <hch@...radead.org> To: Heinrich Schuchardt <xypron.glpk@....de> Cc: Russell King <linux@...linux.org.uk>, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, stable@...r.kernel.org Subject: Re: [PATCH 1/1] arm: mm: Export __sync_icache_dcache() for xen-privcmd On Sat, Apr 13, 2019 at 06:30:52PM +0200, Heinrich Schuchardt wrote: > This patch avoids > ERROR: "__sync_icache_dcache" [drivers/xen/xen-privcmd.ko] undefined! > observed when compiling v4.19.34. > > The xen-privcmd driver, which can be modular, calls set_pte_at() > which in turn may call __sync_icache_dcache(). Maybe that really is a sign that it should not be modular..
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