| Message ID | 1394732963-12174-1-git-send-email-lauraa@codeaurora.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Thu, Mar 13, 2014 at 05:49:23PM +0000, Laura Abbott wrote: > It's useful to be able to chain scatterlists together for very large > scatter allocations. Define ARCH_HAS_SG_CHAIN to let this happen. > > Signed-off-by: Laura Abbott <lauraa@codeaurora.org> > --- > arch/arm64/include/asm/scatterlist.h | 21 +++++++++++++++++++++ > 1 file changed, 21 insertions(+) > create mode 100644 arch/arm64/include/asm/scatterlist.h > > diff --git a/arch/arm64/include/asm/scatterlist.h b/arch/arm64/include/asm/scatterlist.h > new file mode 100644 > index 0000000..7b2602a > --- /dev/null > +++ b/arch/arm64/include/asm/scatterlist.h > @@ -0,0 +1,21 @@ > +/* > + * Copyright (c) 2014, The Linux Foundation. All rights reserved. > + * > + * This program is free software; you can redistribute it and/or modify > + * it under the terms of the GNU General Public License version 2 and > + * only version 2 as published by the Free Software Foundation. > + * > + * This program is distributed in the hope that it will be useful, > + * but WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > + * GNU General Public License for more details. > + */ > + > +#ifndef __ASM_SCATTERLIST_H > +#define __ASM_SCATTERLIST_H > + > +#include <asm-generic/scatterlist.h> > + > +#define ARCH_HAS_SG_CHAIN Hmm, I wonder if this should be a Kconfig option instead, to avoid the need for the dummy header? Will
diff --git a/arch/arm64/include/asm/scatterlist.h b/arch/arm64/include/asm/scatterlist.h new file mode 100644 index 0000000..7b2602a --- /dev/null +++ b/arch/arm64/include/asm/scatterlist.h @@ -0,0 +1,21 @@ +/* + * Copyright (c) 2014, The Linux Foundation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef __ASM_SCATTERLIST_H +#define __ASM_SCATTERLIST_H + +#include <asm-generic/scatterlist.h> + +#define ARCH_HAS_SG_CHAIN + +#endif
It's useful to be able to chain scatterlists together for very large scatter allocations. Define ARCH_HAS_SG_CHAIN to let this happen. Signed-off-by: Laura Abbott <lauraa@codeaurora.org> --- arch/arm64/include/asm/scatterlist.h | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 arch/arm64/include/asm/scatterlist.h