From mboxrd@z Thu Jan 1 00:00:00 1970 From: andreyknvl@google.com (Andrey Konovalov) Date: Thu, 30 Aug 2018 13:41:07 +0200 Subject: [PATCH v6 02/11] uaccess: add untagged_addr definition for other arches In-Reply-To: References: Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org To allow arm64 syscalls accept tagged pointers from userspace, we must untag them when they are passed to the kernel. Since untagging is done in generic parts of the kernel, the untagged_addr macro needs to be defined for all architectures. Define it as a noop for other architectures besides arm64. Signed-off-by: Andrey Konovalov --- include/linux/uaccess.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h index efe79c1cdd47..c045b4eff95e 100644 --- a/include/linux/uaccess.h +++ b/include/linux/uaccess.h @@ -13,6 +13,10 @@ #include +#ifndef untagged_addr +#define untagged_addr(addr) addr +#endif + /* * Architectures should provide two primitives (raw_copy_{to,from}_user()) * and get rid of their private instances of copy_{to,from}_user() and -- 2.19.0.rc0.228.g281dcd1b4d0-goog