From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sudip Mukherjee Subject: [PATCH] blackfin: define dummy pgprot_writecombine for !MMU Date: Wed, 10 Feb 2016 16:20:54 +0530 Message-ID: <1455101454-25441-1-git-send-email-sudipm.mukherjee@gmail.com> Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id; bh=uDODFQ9PiIV22454dICSXysCaStytZ5KKmxX94I7GGg=; b=k+xkGgBMXI7GfEJiEW6QSzXeoy2/JuxrHeqKLTvGDfYqXIk9l6pOOfdG8+JRfh876o eZnGo3wxS7ru+7HNh08ZKCeQK6K6akTPmXiYPmt5xR0OWiChq4fFswnWhjOoHGNB7jGw 5RXQS+z7vShDFMkD0qh1yktyxw3QqZwSb5sUgFlZd6Gv/6W4J5nzfVr5HFe/ixxrKr+Y q4zMFgi5fxsAtxOkNUYWus9C2v4AdnDeClCn/j+xx0YPJAJmGmRP1ebN2cCjtJlI270X JgPuar3yzHKurNN5v1eyWGyBFPHoZJWHtafZPI0e+iklYn+QmOG8k/wjQInBDqrBIBT4 8Dpw== Sender: kernel-testers-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Steven Miao Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, kernel-testers-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Andrew Morton , adi-buildroot-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org, Sudip Mukherjee blackfin allmodconfig build fails with the error: ../sound/core/pcm_native.c: In function 'snd_pcm_lib_default_mmap': ../sound/core/pcm_native.c:3386:24: error: implicit declaration of function 'pgprot_writecombine' [-Werror=implicit-function-declaration] area->vm_page_prot = pgprot_writecombine(area->vm_page_prot); ^ ../sound/core/pcm_native.c:3386:22: error: incompatible types when assigning to type 'pgprot_t {aka struct }' from type 'int' area->vm_page_prot = pgprot_writecombine(area->vm_page_prot); ^ When !MMU, asm-generic will not define default pgprot_writecombine, so blackfin needs to define it by itself. Signed-off-by: Sudip Mukherjee --- Build log is at https://travis-ci.org/sudipm-mukherjee/parport/jobs/108209182 The patch idea is from: 65b9ab888cd7 ("arch/c6x/include/asm/pgtable.h: define dummy pgprot_writecombine for !MMU") arch/blackfin/include/asm/pgtable.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/blackfin/include/asm/pgtable.h b/arch/blackfin/include/asm/pgtable.h index b88a155..c1ee3d6 100644 --- a/arch/blackfin/include/asm/pgtable.h +++ b/arch/blackfin/include/asm/pgtable.h @@ -97,6 +97,8 @@ extern unsigned long get_fb_unmapped_area(struct file *filp, unsigned long, unsigned long); #define HAVE_ARCH_FB_UNMAPPED_AREA +#define pgprot_writecombine pgprot_noncached + #include #endif /* _BLACKFIN_PGTABLE_H */ -- 1.9.1