From: James Hogan <james.hogan@imgtec.com>
To: Paul Burton <paul.burton@imgtec.com>
Cc: <linux-mips@linux-mips.org>, Ralf Baechle <ralf@linux-mips.org>
Subject: Re: [PATCH 7/7] MIPS: uaccess: Use standard __user_copy* function calls
Date: Tue, 27 Jun 2017 23:33:52 +0100 [thread overview]
Message-ID: <20170627223352.GI31455@jhogan-linux.le.imgtec.org> (raw)
In-Reply-To: <20161107111802.12071-8-paul.burton@imgtec.com>
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Hi Paul,
On Mon, Nov 07, 2016 at 11:18:02AM +0000, Paul Burton wrote:
> -#define __invoke_copy_from_user(to, from, n) \
> -({ \
> - register long __cu_ret_r __asm__("$2"); \
> - register void *__cu_to_r __asm__("$4"); \
> - register const void __user *__cu_from_r __asm__("$5"); \
> - register long __cu_len_r __asm__("$6"); \
> - \
> - __cu_to_r = (to); \
> - __cu_from_r = (from); \
> - __cu_len_r = (n); \
> - __asm__ __volatile__( \
> - ".set\tnoreorder\n\t" \
> - __MODULE_JAL(__copy_user) \
> - ".set\tnoat\n\t" \
> - __UA_ADDU "\t$7, %1, %2\n\t" \
I believe __UA_ADDU is no longer used, so could now be removed from the
top of uaccess.h.
Cheers
James
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WARNING: multiple messages have this Message-ID (diff)
From: James Hogan <james.hogan@imgtec.com>
To: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org, Ralf Baechle <ralf@linux-mips.org>
Subject: Re: [PATCH 7/7] MIPS: uaccess: Use standard __user_copy* function calls
Date: Tue, 27 Jun 2017 23:33:52 +0100 [thread overview]
Message-ID: <20170627223352.GI31455@jhogan-linux.le.imgtec.org> (raw)
Message-ID: <20170627223352.IOO3FwxjHS2TdkWjtwSFhXSTn39Mj6_9m9xHeGMqVEA@z> (raw)
In-Reply-To: <20161107111802.12071-8-paul.burton@imgtec.com>
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Hi Paul,
On Mon, Nov 07, 2016 at 11:18:02AM +0000, Paul Burton wrote:
> -#define __invoke_copy_from_user(to, from, n) \
> -({ \
> - register long __cu_ret_r __asm__("$2"); \
> - register void *__cu_to_r __asm__("$4"); \
> - register const void __user *__cu_from_r __asm__("$5"); \
> - register long __cu_len_r __asm__("$6"); \
> - \
> - __cu_to_r = (to); \
> - __cu_from_r = (from); \
> - __cu_len_r = (n); \
> - __asm__ __volatile__( \
> - ".set\tnoreorder\n\t" \
> - __MODULE_JAL(__copy_user) \
> - ".set\tnoat\n\t" \
> - __UA_ADDU "\t$7, %1, %2\n\t" \
I believe __UA_ADDU is no longer used, so could now be removed from the
top of uaccess.h.
Cheers
James
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next prev parent reply other threads:[~2017-06-27 22:34 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-07 11:17 [PATCH 0/7] MIPS: Standard calling convention usercopy & memcpy Paul Burton
2016-11-07 11:17 ` Paul Burton
2016-11-07 11:17 ` [PATCH 1/7] MIPS: lib: Split lib-y to a line per file Paul Burton
2016-11-07 11:17 ` Paul Burton
2016-11-07 11:17 ` [PATCH 2/7] MIPS: lib: Implement memmove in C Paul Burton
2016-11-07 11:17 ` Paul Burton
2016-11-07 11:17 ` [PATCH 3/7] MIPS: memcpy: Split __copy_user & memcpy Paul Burton
2016-11-07 11:17 ` Paul Burton
2016-11-07 11:17 ` [PATCH 4/7] MIPS: memcpy: Return uncopied bytes from __copy_user*() in v0 Paul Burton
2016-11-07 11:17 ` Paul Burton
2016-11-07 11:18 ` [PATCH 5/7] MIPS: memcpy: Use ta* instead of manually defining t4-t7 Paul Burton
2016-11-07 11:18 ` Paul Burton
2016-11-07 11:18 ` [PATCH 6/7] MIPS: memcpy: Use a3/$7 for source end address Paul Burton
2016-11-07 11:18 ` Paul Burton
2016-11-14 14:47 ` Maciej W. Rozycki
2016-11-14 14:47 ` Maciej W. Rozycki
2016-11-07 11:18 ` [PATCH 7/7] MIPS: uaccess: Use standard __user_copy* function calls Paul Burton
2016-11-07 11:18 ` Paul Burton
2017-06-27 22:33 ` James Hogan [this message]
2017-06-27 22:33 ` James Hogan
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