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| author | Guenter Roeck <linux@roeck-us.net> | 2014-12-09 14:21:45 -0800 |
|---|---|---|
| committer | Richard Kuo <rkuo@codeaurora.org> | 2014-12-16 13:27:12 -0600 |
| commit | cb84c2b401d9cead5508cfed57b59b6d5feffdac (patch) | |
| tree | c16c8a0304a2d9a790360fb2376132ba9272b4b5 /arch/hexagon/mm | |
| parent | b2776bf7149bddd1f4161f14f79520f17fc1d71d (diff) | |
| download | linux-stable-cb84c2b401d9cead5508cfed57b59b6d5feffdac.tar.gz linux-stable-cb84c2b401d9cead5508cfed57b59b6d5feffdac.tar.bz2 linux-stable-cb84c2b401d9cead5508cfed57b59b6d5feffdac.zip | |
hexagon: Fix build failures in linux-next
hexagon:defconfig fails to build in linux-next since commit 332fd7c4fef5
("genirq: Generic chip: Change irq_reg_{readl,writel} arguments").
The primary build failure is
arch/hexagon/include/asm/cacheflush.h: In function 'copy_to_user_page':
arch/hexagon/include/asm/cacheflush.h:89:22: error: 'VM_EXEC' undeclared
This is the result of including of <linux/io.h> from <linux/irq.h>,
which is now necessary due to the use of readl and writel from irq.h.
This causes recursive inclusions in hexagon code; cacheflush.h is included
from mm.h prior to the definition of VM_EXEC.
Fix the problem by moving copy_to_user_page from the hexagon include file to
arch/hexagon/mm/cache.c, similar to other architectures. After this change,
several redefinitions of readl and writel are reported. Those are caused
by recursive inclusions of io.h and asm/cacheflush.h. Fix those problems by
reducing the number of files included from those files. Also, it was necessary
to stop including asm-generic/cacheflush.h from asm/cacheflush.h. Instead,
functionality originally provided by asm-generic/cacheflush.h is now coded
in asm/cacheflush.h directly.
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
signed-off-by: Richard Kuo <rkuo@codeaurora.org>
Diffstat (limited to 'arch/hexagon/mm')
| -rw-r--r-- | arch/hexagon/mm/cache.c | 10 | ||||
| -rw-r--r-- | arch/hexagon/mm/ioremap.c | 1 |
2 files changed, 11 insertions, 0 deletions
diff --git a/arch/hexagon/mm/cache.c b/arch/hexagon/mm/cache.c index 0c76c802e31c..a7c6d827d8b6 100644 --- a/arch/hexagon/mm/cache.c +++ b/arch/hexagon/mm/cache.c @@ -127,3 +127,13 @@ void flush_cache_all_hexagon(void) local_irq_restore(flags); mb(); } + +void copy_to_user_page(struct vm_area_struct *vma, struct page *page, + unsigned long vaddr, void *dst, void *src, int len) +{ + memcpy(dst, src, len); + if (vma->vm_flags & VM_EXEC) { + flush_icache_range((unsigned long) dst, + (unsigned long) dst + len); + } +} diff --git a/arch/hexagon/mm/ioremap.c b/arch/hexagon/mm/ioremap.c index 5905fd5f97f6..d27d67224046 100644 --- a/arch/hexagon/mm/ioremap.c +++ b/arch/hexagon/mm/ioremap.c @@ -20,6 +20,7 @@ #include <linux/io.h> #include <linux/vmalloc.h> +#include <linux/mm.h> void __iomem *ioremap_nocache(unsigned long phys_addr, unsigned long size) { |