diff options
author | Catalin Marinas <catalin.marinas@arm.com> | 2012-01-25 11:38:13 +0100 |
---|---|---|
committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2012-01-25 11:07:40 +0000 |
commit | 4e7682d077d693e34a993ae7a2831b522930ebcb (patch) | |
tree | a891a6a1393e3cf7df8e70a6c41579a03475e920 /arch/arm | |
parent | d68133b5a81bd9c4b673c2a731ac1a33a9dc0cb8 (diff) | |
download | talos-obmc-linux-4e7682d077d693e34a993ae7a2831b522930ebcb.tar.gz talos-obmc-linux-4e7682d077d693e34a993ae7a2831b522930ebcb.zip |
ARM: 7301/1: Rename the T() macro to TUSER() to avoid namespace conflicts
This macro is used to generate unprivileged accesses (LDRT/STRT) to user
space.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm')
-rw-r--r-- | arch/arm/include/asm/assembler.h | 4 | ||||
-rw-r--r-- | arch/arm/include/asm/domain.h | 8 | ||||
-rw-r--r-- | arch/arm/include/asm/futex.h | 8 | ||||
-rw-r--r-- | arch/arm/include/asm/uaccess.h | 16 | ||||
-rw-r--r-- | arch/arm/lib/getuser.S | 12 | ||||
-rw-r--r-- | arch/arm/lib/putuser.S | 28 | ||||
-rw-r--r-- | arch/arm/lib/uaccess.S | 82 |
7 files changed, 79 insertions, 79 deletions
diff --git a/arch/arm/include/asm/assembler.h b/arch/arm/include/asm/assembler.h index b6e65dedfd71..62f8095d46de 100644 --- a/arch/arm/include/asm/assembler.h +++ b/arch/arm/include/asm/assembler.h @@ -237,7 +237,7 @@ */ #ifdef CONFIG_THUMB2_KERNEL - .macro usraccoff, instr, reg, ptr, inc, off, cond, abort, t=T() + .macro usraccoff, instr, reg, ptr, inc, off, cond, abort, t=TUSER() 9999: .if \inc == 1 \instr\cond\()b\()\t\().w \reg, [\ptr, #\off] @@ -277,7 +277,7 @@ #else /* !CONFIG_THUMB2_KERNEL */ - .macro usracc, instr, reg, ptr, inc, cond, rept, abort, t=T() + .macro usracc, instr, reg, ptr, inc, cond, rept, abort, t=TUSER() .rept \rept 9999: .if \inc == 1 diff --git a/arch/arm/include/asm/domain.h b/arch/arm/include/asm/domain.h index af18ceaacf5d..b5dc173d336f 100644 --- a/arch/arm/include/asm/domain.h +++ b/arch/arm/include/asm/domain.h @@ -83,9 +83,9 @@ * instructions (inline assembly) */ #ifdef CONFIG_CPU_USE_DOMAINS -#define T(instr) #instr "t" +#define TUSER(instr) #instr "t" #else -#define T(instr) #instr +#define TUSER(instr) #instr #endif #else /* __ASSEMBLY__ */ @@ -95,9 +95,9 @@ * instructions */ #ifdef CONFIG_CPU_USE_DOMAINS -#define T(instr) instr ## t +#define TUSER(instr) instr ## t #else -#define T(instr) instr +#define TUSER(instr) instr #endif #endif /* __ASSEMBLY__ */ diff --git a/arch/arm/include/asm/futex.h b/arch/arm/include/asm/futex.h index 253cc86318bf..7be54690aeec 100644 --- a/arch/arm/include/asm/futex.h +++ b/arch/arm/include/asm/futex.h @@ -75,9 +75,9 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr, #define __futex_atomic_op(insn, ret, oldval, tmp, uaddr, oparg) \ __asm__ __volatile__( \ - "1: " T(ldr) " %1, [%3]\n" \ + "1: " TUSER(ldr) " %1, [%3]\n" \ " " insn "\n" \ - "2: " T(str) " %0, [%3]\n" \ + "2: " TUSER(str) " %0, [%3]\n" \ " mov %0, #0\n" \ __futex_atomic_ex_table("%5") \ : "=&r" (ret), "=&r" (oldval), "=&r" (tmp) \ @@ -95,10 +95,10 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr, return -EFAULT; __asm__ __volatile__("@futex_atomic_cmpxchg_inatomic\n" - "1: " T(ldr) " %1, [%4]\n" + "1: " TUSER(ldr) " %1, [%4]\n" " teq %1, %2\n" " it eq @ explicit IT needed for the 2b label\n" - "2: " T(streq) " %3, [%4]\n" + "2: " TUSER(streq) " %3, [%4]\n" __futex_atomic_ex_table("%5") : "+r" (ret), "=&r" (val) : "r" (oldval), "r" (newval), "r" (uaddr), "Ir" (-EFAULT) diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h index b293616a1a1a..2958976d867b 100644 --- a/arch/arm/include/asm/uaccess.h +++ b/arch/arm/include/asm/uaccess.h @@ -227,7 +227,7 @@ do { \ #define __get_user_asm_byte(x,addr,err) \ __asm__ __volatile__( \ - "1: " T(ldrb) " %1,[%2],#0\n" \ + "1: " TUSER(ldrb) " %1,[%2],#0\n" \ "2:\n" \ " .pushsection .fixup,\"ax\"\n" \ " .align 2\n" \ @@ -263,7 +263,7 @@ do { \ #define __get_user_asm_word(x,addr,err) \ __asm__ __volatile__( \ - "1: " T(ldr) " %1,[%2],#0\n" \ + "1: " TUSER(ldr) " %1,[%2],#0\n" \ "2:\n" \ " .pushsection .fixup,\"ax\"\n" \ " .align 2\n" \ @@ -308,7 +308,7 @@ do { \ #define __put_user_asm_byte(x,__pu_addr,err) \ __asm__ __volatile__( \ - "1: " T(strb) " %1,[%2],#0\n" \ + "1: " TUSER(strb) " %1,[%2],#0\n" \ "2:\n" \ " .pushsection .fixup,\"ax\"\n" \ " .align 2\n" \ @@ -341,7 +341,7 @@ do { \ #define __put_user_asm_word(x,__pu_addr,err) \ __asm__ __volatile__( \ - "1: " T(str) " %1,[%2],#0\n" \ + "1: " TUSER(str) " %1,[%2],#0\n" \ "2:\n" \ " .pushsection .fixup,\"ax\"\n" \ " .align 2\n" \ @@ -366,10 +366,10 @@ do { \ #define __put_user_asm_dword(x,__pu_addr,err) \ __asm__ __volatile__( \ - ARM( "1: " T(str) " " __reg_oper1 ", [%1], #4\n" ) \ - ARM( "2: " T(str) " " __reg_oper0 ", [%1]\n" ) \ - THUMB( "1: " T(str) " " __reg_oper1 ", [%1]\n" ) \ - THUMB( "2: " T(str) " " __reg_oper0 ", [%1, #4]\n" ) \ + ARM( "1: " TUSER(str) " " __reg_oper1 ", [%1], #4\n" ) \ + ARM( "2: " TUSER(str) " " __reg_oper0 ", [%1]\n" ) \ + THUMB( "1: " TUSER(str) " " __reg_oper1 ", [%1]\n" ) \ + THUMB( "2: " TUSER(str) " " __reg_oper0 ", [%1, #4]\n" ) \ "3:\n" \ " .pushsection .fixup,\"ax\"\n" \ " .align 2\n" \ diff --git a/arch/arm/lib/getuser.S b/arch/arm/lib/getuser.S index 1b049cd7a49a..11093a7c3e32 100644 --- a/arch/arm/lib/getuser.S +++ b/arch/arm/lib/getuser.S @@ -31,18 +31,18 @@ #include <asm/domain.h> ENTRY(__get_user_1) -1: T(ldrb) r2, [r0] +1: TUSER(ldrb) r2, [r0] mov r0, #0 mov pc, lr ENDPROC(__get_user_1) ENTRY(__get_user_2) #ifdef CONFIG_THUMB2_KERNEL -2: T(ldrb) r2, [r0] -3: T(ldrb) r3, [r0, #1] +2: TUSER(ldrb) r2, [r0] +3: TUSER(ldrb) r3, [r0, #1] #else -2: T(ldrb) r2, [r0], #1 -3: T(ldrb) r3, [r0] +2: TUSER(ldrb) r2, [r0], #1 +3: TUSER(ldrb) r3, [r0] #endif #ifndef __ARMEB__ orr r2, r2, r3, lsl #8 @@ -54,7 +54,7 @@ ENTRY(__get_user_2) ENDPROC(__get_user_2) ENTRY(__get_user_4) -4: T(ldr) r2, [r0] +4: TUSER(ldr) r2, [r0] mov r0, #0 mov pc, lr ENDPROC(__get_user_4) diff --git a/arch/arm/lib/putuser.S b/arch/arm/lib/putuser.S index c023fc11e86c..7db25990c589 100644 --- a/arch/arm/lib/putuser.S +++ b/arch/arm/lib/putuser.S @@ -31,7 +31,7 @@ #include <asm/domain.h> ENTRY(__put_user_1) -1: T(strb) r2, [r0] +1: TUSER(strb) r2, [r0] mov r0, #0 mov pc, lr ENDPROC(__put_user_1) @@ -40,19 +40,19 @@ ENTRY(__put_user_2) mov ip, r2, lsr #8 #ifdef CONFIG_THUMB2_KERNEL #ifndef __ARMEB__ -2: T(strb) r2, [r0] -3: T(strb) ip, [r0, #1] +2: TUSER(strb) r2, [r0] +3: TUSER(strb) ip, [r0, #1] #else -2: T(strb) ip, [r0] -3: T(strb) r2, [r0, #1] +2: TUSER(strb) ip, [r0] +3: TUSER(strb) r2, [r0, #1] #endif #else /* !CONFIG_THUMB2_KERNEL */ #ifndef __ARMEB__ -2: T(strb) r2, [r0], #1 -3: T(strb) ip, [r0] +2: TUSER(strb) r2, [r0], #1 +3: TUSER(strb) ip, [r0] #else -2: T(strb) ip, [r0], #1 -3: T(strb) r2, [r0] +2: TUSER(strb) ip, [r0], #1 +3: TUSER(strb) r2, [r0] #endif #endif /* CONFIG_THUMB2_KERNEL */ mov r0, #0 @@ -60,18 +60,18 @@ ENTRY(__put_user_2) ENDPROC(__put_user_2) ENTRY(__put_user_4) -4: T(str) r2, [r0] +4: TUSER(str) r2, [r0] mov r0, #0 mov pc, lr ENDPROC(__put_user_4) ENTRY(__put_user_8) #ifdef CONFIG_THUMB2_KERNEL -5: T(str) r2, [r0] -6: T(str) r3, [r0, #4] +5: TUSER(str) r2, [r0] +6: TUSER(str) r3, [r0, #4] #else -5: T(str) r2, [r0], #4 -6: T(str) r3, [r0] +5: TUSER(str) r2, [r0], #4 +6: TUSER(str) r3, [r0] #endif mov r0, #0 mov pc, lr diff --git a/arch/arm/lib/uaccess.S b/arch/arm/lib/uaccess.S index d0ece2aeb70d..5c908b1cb8ed 100644 --- a/arch/arm/lib/uaccess.S +++ b/arch/arm/lib/uaccess.S @@ -32,11 +32,11 @@ rsb ip, ip, #4 cmp ip, #2 ldrb r3, [r1], #1 -USER( T(strb) r3, [r0], #1) @ May fault +USER( TUSER( strb) r3, [r0], #1) @ May fault ldrgeb r3, [r1], #1 -USER( T(strgeb) r3, [r0], #1) @ May fault +USER( TUSER( strgeb) r3, [r0], #1) @ May fault ldrgtb r3, [r1], #1 -USER( T(strgtb) r3, [r0], #1) @ May fault +USER( TUSER( strgtb) r3, [r0], #1) @ May fault sub r2, r2, ip b .Lc2u_dest_aligned @@ -59,7 +59,7 @@ ENTRY(__copy_to_user) addmi ip, r2, #4 bmi .Lc2u_0nowords ldr r3, [r1], #4 -USER( T(str) r3, [r0], #4) @ May fault +USER( TUSER( str) r3, [r0], #4) @ May fault mov ip, r0, lsl #32 - PAGE_SHIFT @ On each page, use a ld/st??t instruction rsb ip, ip, #0 movs ip, ip, lsr #32 - PAGE_SHIFT @@ -88,18 +88,18 @@ USER( T(str) r3, [r0], #4) @ May fault stmneia r0!, {r3 - r4} @ Shouldnt fault tst ip, #4 ldrne r3, [r1], #4 - T(strne) r3, [r0], #4 @ Shouldnt fault + TUSER( strne) r3, [r0], #4 @ Shouldnt fault ands ip, ip, #3 beq .Lc2u_0fupi .Lc2u_0nowords: teq ip, #0 beq .Lc2u_finished .Lc2u_nowords: cmp ip, #2 ldrb r3, [r1], #1 -USER( T(strb) r3, [r0], #1) @ May fault +USER( TUSER( strb) r3, [r0], #1) @ May fault ldrgeb r3, [r1], #1 -USER( T(strgeb) r3, [r0], #1) @ May fault +USER( TUSER( strgeb) r3, [r0], #1) @ May fault ldrgtb r3, [r1], #1 -USER( T(strgtb) r3, [r0], #1) @ May fault +USER( TUSER( strgtb) r3, [r0], #1) @ May fault b .Lc2u_finished .Lc2u_not_enough: @@ -120,7 +120,7 @@ USER( T(strgtb) r3, [r0], #1) @ May fault mov r3, r7, pull #8 ldr r7, [r1], #4 orr r3, r3, r7, push #24 -USER( T(str) r3, [r0], #4) @ May fault +USER( TUSER( str) r3, [r0], #4) @ May fault mov ip, r0, lsl #32 - PAGE_SHIFT rsb ip, ip, #0 movs ip, ip, lsr #32 - PAGE_SHIFT @@ -155,18 +155,18 @@ USER( T(str) r3, [r0], #4) @ May fault movne r3, r7, pull #8 ldrne r7, [r1], #4 orrne r3, r3, r7, push #24 - T(strne) r3, [r0], #4 @ Shouldnt fault + TUSER( strne) r3, [r0], #4 @ Shouldnt fault ands ip, ip, #3 beq .Lc2u_1fupi .Lc2u_1nowords: mov r3, r7, get_byte_1 teq ip, #0 beq .Lc2u_finished cmp ip, #2 -USER( T(strb) r3, [r0], #1) @ May fault +USER( TUSER( strb) r3, [r0], #1) @ May fault movge r3, r7, get_byte_2 -USER( T(strgeb) r3, [r0], #1) @ May fault +USER( TUSER( strgeb) r3, [r0], #1) @ May fault movgt r3, r7, get_byte_3 -USER( T(strgtb) r3, [r0], #1) @ May fault +USER( TUSER( strgtb) r3, [r0], #1) @ May fault b .Lc2u_finished .Lc2u_2fupi: subs r2, r2, #4 @@ -175,7 +175,7 @@ USER( T(strgtb) r3, [r0], #1) @ May fault mov r3, r7, pull #16 ldr r7, [r1], #4 orr r3, r3, r7, push #16 -USER( T(str) r3, [r0], #4) @ May fault +USER( TUSER( str) r3, [r0], #4) @ May fault mov ip, r0, lsl #32 - PAGE_SHIFT rsb ip, ip, #0 movs ip, ip, lsr #32 - PAGE_SHIFT @@ -210,18 +210,18 @@ USER( T(str) r3, [r0], #4) @ May fault movne r3, r7, pull #16 ldrne r7, [r1], #4 orrne r3, r3, r7, push #16 - T(strne) r3, [r0], #4 @ Shouldnt fault + TUSER( strne) r3, [r0], #4 @ Shouldnt fault ands ip, ip, #3 beq .Lc2u_2fupi .Lc2u_2nowords: mov r3, r7, get_byte_2 teq ip, #0 beq .Lc2u_finished cmp ip, #2 -USER( T(strb) r3, [r0], #1) @ May fault +USER( TUSER( strb) r3, [r0], #1) @ May fault movge r3, r7, get_byte_3 -USER( T(strgeb) r3, [r0], #1) @ May fault +USER( TUSER( strgeb) r3, [r0], #1) @ May fault ldrgtb r3, [r1], #0 -USER( T(strgtb) r3, [r0], #1) @ May fault +USER( TUSER( strgtb) r3, [r0], #1) @ May fault b .Lc2u_finished .Lc2u_3fupi: subs r2, r2, #4 @@ -230,7 +230,7 @@ USER( T(strgtb) r3, [r0], #1) @ May fault mov r3, r7, pull #24 ldr r7, [r1], #4 orr r3, r3, r7, push #8 -USER( T(str) r3, [r0], #4) @ May fault +USER( TUSER( str) r3, [r0], #4) @ May fault mov ip, r0, lsl #32 - PAGE_SHIFT rsb ip, ip, #0 movs ip, ip, lsr #32 - PAGE_SHIFT @@ -265,18 +265,18 @@ USER( T(str) r3, [r0], #4) @ May fault movne r3, r7, pull #24 ldrne r7, [r1], #4 orrne r3, r3, r7, push #8 - T(strne) r3, [r0], #4 @ Shouldnt fault + TUSER( strne) r3, [r0], #4 @ Shouldnt fault ands ip, ip, #3 beq .Lc2u_3fupi .Lc2u_3nowords: mov r3, r7, get_byte_3 teq ip, #0 beq .Lc2u_finished cmp ip, #2 -USER( T(strb) r3, [r0], #1) @ May fault +USER( TUSER( strb) r3, [r0], #1) @ May fault ldrgeb r3, [r1], #1 -USER( T(strgeb) r3, [r0], #1) @ May fault +USER( TUSER( strgeb) r3, [r0], #1) @ May fault ldrgtb r3, [r1], #0 -USER( T(strgtb) r3, [r0], #1) @ May fault +USER( TUSER( strgtb) r3, [r0], #1) @ May fault b .Lc2u_finished ENDPROC(__copy_to_user) @@ -295,11 +295,11 @@ ENDPROC(__copy_to_user) .Lcfu_dest_not_aligned: rsb ip, ip, #4 cmp ip, #2 -USER( T(ldrb) r3, [r1], #1) @ May fault +USER( TUSER( ldrb) r3, [r1], #1) @ May fault strb r3, [r0], #1 -USER( T(ldrgeb) r3, [r1], #1) @ May fault +USER( TUSER( ldrgeb) r3, [r1], #1) @ May fault strgeb r3, [r0], #1 -USER( T(ldrgtb) r3, [r1], #1) @ May fault +USER( TUSER( ldrgtb) r3, [r1], #1) @ May fault strgtb r3, [r0], #1 sub r2, r2, ip b .Lcfu_dest_aligned @@ -322,7 +322,7 @@ ENTRY(__copy_from_user) .Lcfu_0fupi: subs r2, r2, #4 addmi ip, r2, #4 bmi .Lcfu_0nowords -USER( T(ldr) r3, [r1], #4) +USER( TUSER( ldr) r3, [r1], #4) str r3, [r0], #4 mov ip, r1, lsl #32 - PAGE_SHIFT @ On each page, use a ld/st??t instruction rsb ip, ip, #0 @@ -351,18 +351,18 @@ USER( T(ldr) r3, [r1], #4) ldmneia r1!, {r3 - r4} @ Shouldnt fault stmneia r0!, {r3 - r4} tst ip, #4 - T(ldrne) r3, [r1], #4 @ Shouldnt fault + TUSER( ldrne) r3, [r1], #4 @ Shouldnt fault strne r3, [r0], #4 ands ip, ip, #3 beq .Lcfu_0fupi .Lcfu_0nowords: teq ip, #0 beq .Lcfu_finished .Lcfu_nowords: cmp ip, #2 -USER( T(ldrb) r3, [r1], #1) @ May fault +USER( TUSER( ldrb) r3, [r1], #1) @ May fault strb r3, [r0], #1 -USER( T(ldrgeb) r3, [r1], #1) @ May fault +USER( TUSER( ldrgeb) r3, [r1], #1) @ May fault strgeb r3, [r0], #1 -USER( T(ldrgtb) r3, [r1], #1) @ May fault +USER( TUSER( ldrgtb) r3, [r1], #1) @ May fault strgtb r3, [r0], #1 b .Lcfu_finished @@ -375,7 +375,7 @@ USER( T(ldrgtb) r3, [r1], #1) @ May fault .Lcfu_src_not_aligned: bic r1, r1, #3 -USER( T(ldr) r7, [r1], #4) @ May fault +USER( TUSER( ldr) r7, [r1], #4) @ May fault cmp ip, #2 bgt .Lcfu_3fupi beq .Lcfu_2fupi @@ -383,7 +383,7 @@ USER( T(ldr) r7, [r1], #4) @ May fault addmi ip, r2, #4 bmi .Lcfu_1nowords mov r3, r7, pull #8 -USER( T(ldr) r7, [r1], #4) @ May fault +USER( TUSER( ldr) r7, [r1], #4) @ May fault orr r3, r3, r7, push #24 str r3, [r0], #4 mov ip, r1, lsl #32 - PAGE_SHIFT @@ -418,7 +418,7 @@ USER( T(ldr) r7, [r1], #4) @ May fault stmneia r0!, {r3 - r4} tst ip, #4 movne r3, r7, pull #8 -USER( T(ldrne) r7, [r1], #4) @ May fault +USER( TUSER( ldrne) r7, [r1], #4) @ May fault orrne r3, r3, r7, push #24 strne r3, [r0], #4 ands ip, ip, #3 @@ -438,7 +438,7 @@ USER( T(ldrne) r7, [r1], #4) @ May fault addmi ip, r2, #4 bmi .Lcfu_2nowords mov r3, r7, pull #16 -USER( T(ldr) r7, [r1], #4) @ May fault +USER( TUSER( ldr) r7, [r1], #4) @ May fault orr r3, r3, r7, push #16 str r3, [r0], #4 mov ip, r1, lsl #32 - PAGE_SHIFT @@ -474,7 +474,7 @@ USER( T(ldr) r7, [r1], #4) @ May fault stmneia r0!, {r3 - r4} tst ip, #4 movne r3, r7, pull #16 -USER( T(ldrne) r7, [r1], #4) @ May fault +USER( TUSER( ldrne) r7, [r1], #4) @ May fault orrne r3, r3, r7, push #16 strne r3, [r0], #4 ands ip, ip, #3 @@ -486,7 +486,7 @@ USER( T(ldrne) r7, [r1], #4) @ May fault strb r3, [r0], #1 movge r3, r7, get_byte_3 strgeb r3, [r0], #1 -USER( T(ldrgtb) r3, [r1], #0) @ May fault +USER( TUSER( ldrgtb) r3, [r1], #0) @ May fault strgtb r3, [r0], #1 b .Lcfu_finished @@ -494,7 +494,7 @@ USER( T(ldrgtb) r3, [r1], #0) @ May fault addmi ip, r2, #4 bmi .Lcfu_3nowords mov r3, r7, pull #24 -USER( T(ldr) r7, [r1], #4) @ May fault +USER( TUSER( ldr) r7, [r1], #4) @ May fault orr r3, r3, r7, push #8 str r3, [r0], #4 mov ip, r1, lsl #32 - PAGE_SHIFT @@ -529,7 +529,7 @@ USER( T(ldr) r7, [r1], #4) @ May fault stmneia r0!, {r3 - r4} tst ip, #4 movne r3, r7, pull #24 -USER( T(ldrne) r7, [r1], #4) @ May fault +USER( TUSER( ldrne) r7, [r1], #4) @ May fault orrne r3, r3, r7, push #8 strne r3, [r0], #4 ands ip, ip, #3 @@ -539,9 +539,9 @@ USER( T(ldrne) r7, [r1], #4) @ May fault beq .Lcfu_finished cmp ip, #2 strb r3, [r0], #1 -USER( T(ldrgeb) r3, [r1], #1) @ May fault +USER( TUSER( ldrgeb) r3, [r1], #1) @ May fault strgeb r3, [r0], #1 -USER( T(ldrgtb) r3, [r1], #1) @ May fault +USER( TUSER( ldrgtb) r3, [r1], #1) @ May fault strgtb r3, [r0], #1 b .Lcfu_finished ENDPROC(__copy_from_user) |