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D14380.id.diff
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Index: head/sys/amd64/amd64/fpu.c
===================================================================
--- head/sys/amd64/amd64/fpu.c
+++ head/sys/amd64/amd64/fpu.c
@@ -965,7 +965,7 @@
return ((struct savefpu *)p);
}
-int
+void
fpu_kern_enter(struct thread *td, struct fpu_kern_ctx *ctx, u_int flags)
{
struct pcb *pcb;
@@ -997,11 +997,11 @@
fpurestore(fpu_initialstate);
set_pcb_flags(pcb, PCB_KERNFPU | PCB_FPUNOSAVE |
PCB_FPUINITDONE);
- return (0);
+ return;
}
if ((flags & FPU_KERN_KTHR) != 0 && is_fpu_kern_thread(0)) {
ctx->flags = FPU_KERN_CTX_DUMMY | FPU_KERN_CTX_INUSE;
- return (0);
+ return;
}
KASSERT(!PCB_USER_FPU(pcb) || pcb->pcb_save ==
get_pcb_user_save_pcb(pcb), ("mangled pcb_save"));
@@ -1013,7 +1013,7 @@
pcb->pcb_save = fpu_kern_ctx_savefpu(ctx);
set_pcb_flags(pcb, PCB_KERNFPU);
clear_pcb_flags(pcb, PCB_FPUINITDONE);
- return (0);
+ return;
}
int
Index: head/sys/amd64/include/fpu.h
===================================================================
--- head/sys/amd64/include/fpu.h
+++ head/sys/amd64/include/fpu.h
@@ -72,7 +72,7 @@
void fpuuserinited(struct thread *td);
struct fpu_kern_ctx *fpu_kern_alloc_ctx(u_int flags);
void fpu_kern_free_ctx(struct fpu_kern_ctx *ctx);
-int fpu_kern_enter(struct thread *td, struct fpu_kern_ctx *ctx,
+void fpu_kern_enter(struct thread *td, struct fpu_kern_ctx *ctx,
u_int flags);
int fpu_kern_leave(struct thread *td, struct fpu_kern_ctx *ctx);
int fpu_kern_thread(u_int flags);
Index: head/sys/arm64/arm64/vfp.c
===================================================================
--- head/sys/arm64/arm64/vfp.c
+++ head/sys/arm64/arm64/vfp.c
@@ -256,7 +256,7 @@
free(ctx, M_FPUKERN_CTX);
}
-int
+void
fpu_kern_enter(struct thread *td, struct fpu_kern_ctx *ctx, u_int flags)
{
struct pcb *pcb;
@@ -279,12 +279,12 @@
vfp_enable();
pcb->pcb_fpflags |= PCB_FP_KERN | PCB_FP_NOSAVE |
PCB_FP_STARTED;
- return (0);
+ return;
}
if ((flags & FPU_KERN_KTHR) != 0 && is_fpu_kern_thread(0)) {
ctx->flags = FPU_KERN_CTX_DUMMY | FPU_KERN_CTX_INUSE;
- return (0);
+ return;
}
/*
* Check either we are already using the VFP in the kernel, or
@@ -300,7 +300,7 @@
pcb->pcb_fpflags |= PCB_FP_KERN;
pcb->pcb_fpflags &= ~PCB_FP_STARTED;
- return (0);
+ return;
}
int
Index: head/sys/arm64/include/vfp.h
===================================================================
--- head/sys/arm64/include/vfp.h
+++ head/sys/arm64/include/vfp.h
@@ -60,7 +60,7 @@
struct fpu_kern_ctx *fpu_kern_alloc_ctx(u_int);
void fpu_kern_free_ctx(struct fpu_kern_ctx *);
-int fpu_kern_enter(struct thread *, struct fpu_kern_ctx *, u_int);
+void fpu_kern_enter(struct thread *, struct fpu_kern_ctx *, u_int);
int fpu_kern_leave(struct thread *, struct fpu_kern_ctx *);
int fpu_kern_thread(u_int);
int is_fpu_kern_thread(u_int);
Index: head/sys/crypto/aesni/aesni.c
===================================================================
--- head/sys/crypto/aesni/aesni.c
+++ head/sys/crypto/aesni/aesni.c
@@ -577,10 +577,8 @@
kt = is_fpu_kern_thread(0) || (encini == NULL);
if (!kt) {
ACQUIRE_CTX(ctxidx, ctx);
- error = fpu_kern_enter(curthread, ctx,
+ fpu_kern_enter(curthread, ctx,
FPU_KERN_NORMAL | FPU_KERN_KTHR);
- if (error != 0)
- goto out;
}
error = 0;
@@ -590,7 +588,6 @@
if (!kt) {
fpu_kern_leave(curthread, ctx);
-out:
RELEASE_CTX(ctxidx, ctx);
}
return (error);
@@ -730,10 +727,8 @@
kt = is_fpu_kern_thread(0);
if (!kt) {
ACQUIRE_CTX(ctxidx, ctx);
- error = fpu_kern_enter(curthread, ctx,
+ fpu_kern_enter(curthread, ctx,
FPU_KERN_NORMAL | FPU_KERN_KTHR);
- if (error != 0)
- goto out2;
}
/* Do work */
@@ -761,7 +756,6 @@
out:
if (!kt) {
fpu_kern_leave(curthread, ctx);
-out2:
RELEASE_CTX(ctxidx, ctx);
}
return (error);
Index: head/sys/crypto/armv8/armv8_crypto.c
===================================================================
--- head/sys/crypto/armv8/armv8_crypto.c
+++ head/sys/crypto/armv8/armv8_crypto.c
@@ -467,7 +467,7 @@
struct fpu_kern_ctx *ctx;
uint8_t *buf;
uint8_t iv[AES_BLOCK_LEN];
- int allocated, error, i;
+ int allocated, i;
int encflag, ivlen;
int kt;
@@ -477,15 +477,11 @@
if (buf == NULL)
return (ENOMEM);
- error = 0;
-
kt = is_fpu_kern_thread(0);
if (!kt) {
AQUIRE_CTX(i, ctx);
- error = fpu_kern_enter(curthread, ctx,
+ fpu_kern_enter(curthread, ctx,
FPU_KERN_NORMAL | FPU_KERN_KTHR);
- if (error != 0)
- goto out;
}
if ((enccrd->crd_flags & CRD_F_KEY_EXPLICIT) != 0) {
@@ -534,14 +530,13 @@
if (!kt) {
fpu_kern_leave(curthread, ctx);
-out:
RELEASE_CTX(i, ctx);
}
if (allocated) {
bzero(buf, enccrd->crd_len);
free(buf, M_ARMV8_CRYPTO);
}
- return (error);
+ return (0);
}
static device_method_t armv8_crypto_methods[] = {
Index: head/sys/crypto/via/padlock.c
===================================================================
--- head/sys/crypto/via/padlock.c
+++ head/sys/crypto/via/padlock.c
@@ -246,12 +246,10 @@
if (macini != NULL) {
td = curthread;
- error = fpu_kern_enter(td, ses->ses_fpu_ctx, FPU_KERN_NORMAL |
+ fpu_kern_enter(td, ses->ses_fpu_ctx, FPU_KERN_NORMAL |
FPU_KERN_KTHR);
- if (error == 0) {
- error = padlock_hash_setup(ses, macini);
- fpu_kern_leave(td, ses->ses_fpu_ctx);
- }
+ error = padlock_hash_setup(ses, macini);
+ fpu_kern_leave(td, ses->ses_fpu_ctx);
if (error != 0) {
padlock_freesession_one(sc, ses, 0);
return (error);
Index: head/sys/crypto/via/padlock_cipher.c
===================================================================
--- head/sys/crypto/via/padlock_cipher.c
+++ head/sys/crypto/via/padlock_cipher.c
@@ -205,7 +205,7 @@
struct thread *td;
u_char *buf, *abuf;
uint32_t *key;
- int allocated, error;
+ int allocated;
buf = padlock_cipher_alloc(enccrd, crp, &allocated);
if (buf == NULL)
@@ -250,10 +250,7 @@
}
td = curthread;
- error = fpu_kern_enter(td, ses->ses_fpu_ctx, FPU_KERN_NORMAL |
- FPU_KERN_KTHR);
- if (error != 0)
- goto out;
+ fpu_kern_enter(td, ses->ses_fpu_ctx, FPU_KERN_NORMAL | FPU_KERN_KTHR);
padlock_cbc(abuf, abuf, enccrd->crd_len / AES_BLOCK_LEN, key, cw,
ses->ses_iv);
fpu_kern_leave(td, ses->ses_fpu_ctx);
@@ -270,10 +267,9 @@
AES_BLOCK_LEN, ses->ses_iv);
}
- out:
if (allocated) {
bzero(buf, enccrd->crd_len + 16);
free(buf, M_PADLOCK);
}
- return (error);
+ return (0);
}
Index: head/sys/crypto/via/padlock_hash.c
===================================================================
--- head/sys/crypto/via/padlock_hash.c
+++ head/sys/crypto/via/padlock_hash.c
@@ -377,10 +377,7 @@
int error;
td = curthread;
- error = fpu_kern_enter(td, ses->ses_fpu_ctx, FPU_KERN_NORMAL |
- FPU_KERN_KTHR);
- if (error != 0)
- return (error);
+ fpu_kern_enter(td, ses->ses_fpu_ctx, FPU_KERN_NORMAL | FPU_KERN_KTHR);
if ((maccrd->crd_flags & CRD_F_KEY_EXPLICIT) != 0)
padlock_hash_key_setup(ses, maccrd->crd_key, maccrd->crd_klen);
Index: head/sys/dev/efidev/efirt.c
===================================================================
--- head/sys/dev/efidev/efirt.c
+++ head/sys/dev/efidev/efirt.c
@@ -194,7 +194,6 @@
{
struct thread *td;
pmap_t curpmap;
- int error;
if (efi_runtime == NULL)
return (ENXIO);
@@ -202,12 +201,7 @@
curpmap = &td->td_proc->p_vmspace->vm_pmap;
PMAP_LOCK(curpmap);
mtx_lock(&efi_lock);
- error = fpu_kern_enter(td, NULL, FPU_KERN_NOCTX);
- if (error != 0) {
- PMAP_UNLOCK(curpmap);
- return (error);
- }
-
+ fpu_kern_enter(td, NULL, FPU_KERN_NOCTX);
return (efi_arch_enter());
}
Index: head/sys/dev/random/nehemiah.c
===================================================================
--- head/sys/dev/random/nehemiah.c
+++ head/sys/dev/random/nehemiah.c
@@ -101,17 +101,14 @@
size_t count, ret;
uint64_t tmp;
- if ((fpu_kern_enter(curthread, fpu_ctx_save, FPU_KERN_NORMAL) == 0)) {
- b = buf;
- for (count = c; count > 0; count -= ret) {
- ret = MIN(VIA_RNG_store(&tmp), count);
- memcpy(b, &tmp, ret);
- b += ret;
- }
- fpu_kern_leave(curthread, fpu_ctx_save);
+ fpu_kern_enter(curthread, fpu_ctx_save, FPU_KERN_NORMAL);
+ b = buf;
+ for (count = c; count > 0; count -= ret) {
+ ret = MIN(VIA_RNG_store(&tmp), count);
+ memcpy(b, &tmp, ret);
+ b += ret;
}
- else
- c = 0;
+ fpu_kern_leave(curthread, fpu_ctx_save);
return (c);
}
Index: head/sys/i386/i386/npx.c
===================================================================
--- head/sys/i386/i386/npx.c
+++ head/sys/i386/i386/npx.c
@@ -1325,7 +1325,7 @@
return ((union savefpu *)p);
}
-int
+void
fpu_kern_enter(struct thread *td, struct fpu_kern_ctx *ctx, u_int flags)
{
struct pcb *pcb;
@@ -1334,7 +1334,7 @@
if ((flags & FPU_KERN_KTHR) != 0 && is_fpu_kern_thread(0)) {
ctx->flags = FPU_KERN_CTX_DUMMY | FPU_KERN_CTX_INUSE;
- return (0);
+ return;
}
pcb = td->td_pcb;
KASSERT(!PCB_USER_FPU(pcb) || pcb->pcb_save ==
@@ -1347,7 +1347,7 @@
pcb->pcb_save = fpu_kern_ctx_savefpu(ctx);
pcb->pcb_flags |= PCB_KERNNPX;
pcb->pcb_flags &= ~PCB_NPXINITDONE;
- return (0);
+ return;
}
int
Index: head/sys/i386/include/npx.h
===================================================================
--- head/sys/i386/include/npx.h
+++ head/sys/i386/include/npx.h
@@ -76,7 +76,7 @@
struct fpu_kern_ctx *fpu_kern_alloc_ctx(u_int flags);
void fpu_kern_free_ctx(struct fpu_kern_ctx *ctx);
-int fpu_kern_enter(struct thread *td, struct fpu_kern_ctx *ctx,
+void fpu_kern_enter(struct thread *td, struct fpu_kern_ctx *ctx,
u_int flags);
int fpu_kern_leave(struct thread *td, struct fpu_kern_ctx *ctx);
int fpu_kern_thread(u_int flags);
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