From: Christoph Hellwig <hch@lst.de>
To: Paul Walmsley <paul.walmsley@sifive.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Arnd Bergmann <arnd@arndb.de>,
Alexander Viro <viro@zeniv.linux.org.uk>
Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org,
linux-arch@vger.kernel.org
Subject: [PATCH 4/8] asm-generic: prepare uaccess.h for a set_fs-less world
Date: Fri, 4 Sep 2020 18:52:12 +0200 [thread overview]
Message-ID: <20200904165216.1799796-5-hch@lst.de> (raw)
In-Reply-To: <20200904165216.1799796-1-hch@lst.de>
Put all the set_fs related code under CONFIG_SET_FS so that
asm-generic/uaccess.h can be used for set_fs-less builds.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
include/asm-generic/uaccess.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/include/asm-generic/uaccess.h b/include/asm-generic/uaccess.h
index 768502bbfb154e..a9e6da7cce25e2 100644
--- a/include/asm-generic/uaccess.h
+++ b/include/asm-generic/uaccess.h
@@ -83,6 +83,7 @@ raw_copy_to_user(void __user *to, const void *from, unsigned long n)
#define INLINE_COPY_TO_USER
#endif /* CONFIG_UACCESS_MEMCPY */
+#ifdef CONFIG_SET_FS
#define MAKE_MM_SEG(s) ((mm_segment_t) { (s) })
#ifndef KERNEL_DS
@@ -105,6 +106,7 @@ static inline void set_fs(mm_segment_t fs)
#ifndef uaccess_kernel
#define uaccess_kernel() (get_fs().seg == KERNEL_DS.seg)
#endif
+#endif /* CONFIG_SET_FS */
#define access_ok(addr, size) __access_ok((unsigned long)(addr),(size))
--
2.28.0
next prev parent reply other threads:[~2020-09-04 16:52 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-04 16:52 remove set_fs for riscv Christoph Hellwig
2020-09-04 16:52 ` [PATCH 1/8] maccess: add a generic __{get,put}_kernel_nofault for nommu Christoph Hellwig
2020-09-04 16:52 ` [PATCH 2/8] uaccess: provide a generic TASK_SIZE_MAX definition Christoph Hellwig
2020-09-04 16:52 ` [PATCH 3/8] asm-generic: fix unaligned access hamdling in raw_copy_{from,to}_user Christoph Hellwig
2020-09-04 18:04 ` Arnd Bergmann
2020-09-05 7:14 ` Christoph Hellwig
2020-09-04 18:06 ` Al Viro
2020-09-04 22:35 ` Al Viro
2020-09-05 14:41 ` Al Viro
2020-09-07 8:07 ` Arnd Bergmann
2020-09-07 19:00 ` [PATCH 3/8] asm-generic: fix unaligned access hamdling in raw_copy_{from, to}_user Sean Anderson
2020-09-04 16:52 ` Christoph Hellwig [this message]
2020-09-04 16:52 ` [PATCH 5/8] riscv: use memcpy based uaccess for nommu again Christoph Hellwig
2020-09-04 16:52 ` [PATCH 6/8] riscv: refactor __get_user and __put_user Christoph Hellwig
2020-09-04 16:52 ` [PATCH 7/8] riscv: implement __get_kernel_nofault and __put_user_nofault Christoph Hellwig
2020-09-04 16:52 ` [PATCH 8/8] riscv: remove address space overrides using set_fs() Christoph Hellwig
2020-09-04 18:15 ` remove set_fs for riscv Arnd Bergmann
2020-09-05 7:17 ` Christoph Hellwig
2020-09-05 12:17 ` Arnd Bergmann
2020-09-06 22:14 ` Arnd Bergmann
2020-09-07 6:03 ` Christoph Hellwig
2020-09-07 14:58 ` Arnd Bergmann
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