[CPUFREQ] checkpatch cleanups for powernow-k8
authorDave Jones <davej@redhat.com>
Wed, 4 Feb 2009 19:37:50 +0000 (14:37 -0500)
committerDave Jones <davej@redhat.com>
Wed, 25 Feb 2009 03:47:30 +0000 (22:47 -0500)
This driver has so many long function names, and deep nested if's
The remaining warnings will need some code restructuring to clean up.

Signed-off-by: Dave Jones <davej@redhat.com>
arch/x86/kernel/cpu/cpufreq/powernow-k8.c

index 6428aa17b40e794683b5359ed0589dc3dbfbf592..4dd7e3bdee23c8c6236e56c8046abcdedfd0f34a 100644 (file)
 #include <linux/string.h>
 #include <linux/cpumask.h>
 #include <linux/sched.h>       /* for current / set_cpus_allowed() */
+#include <linux/io.h>
+#include <linux/delay.h>
 
 #include <asm/msr.h>
-#include <asm/io.h>
-#include <asm/delay.h>
 
 #ifdef CONFIG_X86_POWERNOW_K8_ACPI
 #include <linux/acpi.h>
@@ -71,7 +71,8 @@ static u32 find_khz_freq_from_fid(u32 fid)
        return 1000 * find_freq_from_fid(fid);
 }
 
-static u32 find_khz_freq_from_pstate(struct cpufreq_frequency_table *data, u32 pstate)
+static u32 find_khz_freq_from_pstate(struct cpufreq_frequency_table *data,
+               u32 pstate)
 {
        return data[pstate].frequency;
 }
@@ -186,7 +187,9 @@ static int write_new_fid(struct powernow_k8_data *data, u32 fid)
                return 1;
        }
 
-       lo = fid | (data->currvid << MSR_C_LO_VID_SHIFT) | MSR_C_LO_INIT_FID_VID;
+       lo = fid;
+       lo |= (data->currvid << MSR_C_LO_VID_SHIFT);
+       lo |= MSR_C_LO_INIT_FID_VID;
 
        dprintk("writing fid 0x%x, lo 0x%x, hi 0x%x\n",
                fid, lo, data->plllock * PLL_LOCK_CONVERSION);
@@ -194,7 +197,9 @@ static int write_new_fid(struct powernow_k8_data *data, u32 fid)
        do {
                wrmsr(MSR_FIDVID_CTL, lo, data->plllock * PLL_LOCK_CONVERSION);
                if (i++ > 100) {
-                       printk(KERN_ERR PFX "Hardware error - pending bit very stuck - no further pstate changes possible\n");
+                       printk(KERN_ERR PFX
+                               "Hardware error - pending bit very stuck - "
+                               "no further pstate changes possible\n");
                        return 1;
                }
        } while (query_current_values_with_pending_wait(data));
@@ -202,14 +207,16 @@ static int write_new_fid(struct powernow_k8_data *data, u32 fid)
        count_off_irt(data);
 
        if (savevid != data->currvid) {
-               printk(KERN_ERR PFX "vid change on fid trans, old 0x%x, new 0x%x\n",
-                      savevid, data->currvid);
+               printk(KERN_ERR PFX
+                       "vid change on fid trans, old 0x%x, new 0x%x\n",
+                       savevid, data->currvid);
                return 1;
        }
 
        if (fid != data->currfid) {
-               printk(KERN_ERR PFX "fid trans failed, fid 0x%x, curr 0x%x\n", fid,
-                       data->currfid);
+               printk(KERN_ERR PFX
+                       "fid trans failed, fid 0x%x, curr 0x%x\n", fid,
+                       data->currfid);
                return 1;
        }
 
@@ -228,7 +235,9 @@ static int write_new_vid(struct powernow_k8_data *data, u32 vid)
                return 1;
        }
 
-       lo = data->currfid | (vid << MSR_C_LO_VID_SHIFT) | MSR_C_LO_INIT_FID_VID;
+       lo = data->currfid;
+       lo |= (vid << MSR_C_LO_VID_SHIFT);
+       lo |= MSR_C_LO_INIT_FID_VID;
 
        dprintk("writing vid 0x%x, lo 0x%x, hi 0x%x\n",
                vid, lo, STOP_GRANT_5NS);
@@ -236,20 +245,24 @@ static int write_new_vid(struct powernow_k8_data *data, u32 vid)
        do {
                wrmsr(MSR_FIDVID_CTL, lo, STOP_GRANT_5NS);
                if (i++ > 100) {
-                       printk(KERN_ERR PFX "internal error - pending bit very stuck - no further pstate changes possible\n");
+                       printk(KERN_ERR PFX "internal error - pending bit "
+                                       "very stuck - no further pstate "
+                                       "changes possible\n");
                        return 1;
                }
        } while (query_current_values_with_pending_wait(data));
 
        if (savefid != data->currfid) {
-               printk(KERN_ERR PFX "fid changed on vid trans, old 0x%x new 0x%x\n",
+               printk(KERN_ERR PFX "fid changed on vid trans, old "
+                       "0x%x new 0x%x\n",
                       savefid, data->currfid);
                return 1;
        }
 
        if (vid != data->currvid) {
-               printk(KERN_ERR PFX "vid trans failed, vid 0x%x, curr 0x%x\n", vid,
-                               data->currvid);
+               printk(KERN_ERR PFX "vid trans failed, vid 0x%x, "
+                               "curr 0x%x\n",
+                               vid, data->currvid);
                return 1;
        }
 
@@ -261,7 +274,8 @@ static int write_new_vid(struct powernow_k8_data *data, u32 vid)
  * Decreasing vid codes represent increasing voltages:
  * vid of 0 is 1.550V, vid of 0x1e is 0.800V, vid of VID_OFF is off.
  */
-static int decrease_vid_code_by_step(struct powernow_k8_data *data, u32 reqvid, u32 step)
+static int decrease_vid_code_by_step(struct powernow_k8_data *data,
+               u32 reqvid, u32 step)
 {
        if ((data->currvid - reqvid) > step)
                reqvid = data->currvid - step;
@@ -283,7 +297,8 @@ static int transition_pstate(struct powernow_k8_data *data, u32 pstate)
 }
 
 /* Change Opteron/Athlon64 fid and vid, by the 3 phases. */
-static int transition_fid_vid(struct powernow_k8_data *data, u32 reqfid, u32 reqvid)
+static int transition_fid_vid(struct powernow_k8_data *data,
+               u32 reqfid, u32 reqvid)
 {
        if (core_voltage_pre_transition(data, reqvid))
                return 1;
@@ -298,7 +313,8 @@ static int transition_fid_vid(struct powernow_k8_data *data, u32 reqfid, u32 req
                return 1;
 
        if ((reqfid != data->currfid) || (reqvid != data->currvid)) {
-               printk(KERN_ERR PFX "failed (cpu%d): req 0x%x 0x%x, curr 0x%x 0x%x\n",
+               printk(KERN_ERR PFX "failed (cpu%d): req 0x%x 0x%x, "
+                               "curr 0x%x 0x%x\n",
                                smp_processor_id(),
                                reqfid, reqvid, data->currfid, data->currvid);
                return 1;
@@ -311,13 +327,15 @@ static int transition_fid_vid(struct powernow_k8_data *data, u32 reqfid, u32 req
 }
 
 /* Phase 1 - core voltage transition ... setup voltage */
-static int core_voltage_pre_transition(struct powernow_k8_data *data, u32 reqvid)
+static int core_voltage_pre_transition(struct powernow_k8_data *data,
+               u32 reqvid)
 {
        u32 rvosteps = data->rvo;
        u32 savefid = data->currfid;
        u32 maxvid, lo;
 
-       dprintk("ph1 (cpu%d): start, currfid 0x%x, currvid 0x%x, reqvid 0x%x, rvo 0x%x\n",
+       dprintk("ph1 (cpu%d): start, currfid 0x%x, currvid 0x%x, "
+               "reqvid 0x%x, rvo 0x%x\n",
                smp_processor_id(),
                data->currfid, data->currvid, reqvid, data->rvo);
 
@@ -340,7 +358,7 @@ static int core_voltage_pre_transition(struct powernow_k8_data *data, u32 reqvid
                } else {
                        dprintk("ph1: changing vid for rvo, req 0x%x\n",
                                data->currvid - 1);
-                       if (decrease_vid_code_by_step(data, data->currvid - 1, 1))
+                       if (decrease_vid_code_by_step(data, data->currvid-1, 1))
                                return 1;
                        rvosteps--;
                }
@@ -350,7 +368,8 @@ static int core_voltage_pre_transition(struct powernow_k8_data *data, u32 reqvid
                return 1;
 
        if (savefid != data->currfid) {
-               printk(KERN_ERR PFX "ph1 err, currfid changed 0x%x\n", data->currfid);
+               printk(KERN_ERR PFX "ph1 err, currfid changed 0x%x\n",
+                               data->currfid);
                return 1;
        }
 
@@ -363,20 +382,24 @@ static int core_voltage_pre_transition(struct powernow_k8_data *data, u32 reqvid
 /* Phase 2 - core frequency transition */
 static int core_frequency_transition(struct powernow_k8_data *data, u32 reqfid)
 {
-       u32 vcoreqfid, vcocurrfid, vcofiddiff, fid_interval, savevid = data->currvid;
+       u32 vcoreqfid, vcocurrfid, vcofiddiff;
+       u32 fid_interval, savevid = data->currvid;
 
-       if ((reqfid < HI_FID_TABLE_BOTTOM) && (data->currfid < HI_FID_TABLE_BOTTOM)) {
-               printk(KERN_ERR PFX "ph2: illegal lo-lo transition 0x%x 0x%x\n",
-                       reqfid, data->currfid);
+       if ((reqfid < HI_FID_TABLE_BOTTOM) &&
+           (data->currfid < HI_FID_TABLE_BOTTOM)) {
+               printk(KERN_ERR PFX "ph2: illegal lo-lo transition "
+                               "0x%x 0x%x\n", reqfid, data->currfid);
                return 1;
        }
 
        if (data->currfid == reqfid) {
-               printk(KERN_ERR PFX "ph2 null fid transition 0x%x\n", data->currfid);
+               printk(KERN_ERR PFX "ph2 null fid transition 0x%x\n",
+                               data->currfid);
                return 0;
        }
 
-       dprintk("ph2 (cpu%d): starting, currfid 0x%x, currvid 0x%x, reqfid 0x%x\n",
+       dprintk("ph2 (cpu%d): starting, currfid 0x%x, currvid 0x%x, "
+               "reqfid 0x%x\n",
                smp_processor_id(),
                data->currfid, data->currvid, reqfid);
 
@@ -390,14 +413,14 @@ static int core_frequency_transition(struct powernow_k8_data *data, u32 reqfid)
 
                if (reqfid > data->currfid) {
                        if (data->currfid > LO_FID_TABLE_TOP) {
-                               if (write_new_fid(data, data->currfid + fid_interval)) {
+                               if (write_new_fid(data,
+                                               data->currfid + fid_interval))
                                        return 1;
-                               }
                        } else {
                                if (write_new_fid
-                                   (data, 2 + convert_fid_to_vco_fid(data->currfid))) {
+                                   (data,
+                                    2 + convert_fid_to_vco_fid(data->currfid)))
                                        return 1;
-                               }
                        }
                } else {
                        if (write_new_fid(data, data->currfid - fid_interval))
@@ -417,7 +440,8 @@ static int core_frequency_transition(struct powernow_k8_data *data, u32 reqfid)
 
        if (data->currfid != reqfid) {
                printk(KERN_ERR PFX
-                       "ph2: mismatch, failed fid transition, curr 0x%x, req 0x%x\n",
+                       "ph2: mismatch, failed fid transition, "
+                       "curr 0x%x, req 0x%x\n",
                        data->currfid, reqfid);
                return 1;
        }
@@ -435,7 +459,8 @@ static int core_frequency_transition(struct powernow_k8_data *data, u32 reqfid)
 }
 
 /* Phase 3 - core voltage transition flow ... jump to the final vid. */
-static int core_voltage_post_transition(struct powernow_k8_data *data, u32 reqvid)
+static int core_voltage_post_transition(struct powernow_k8_data *data,
+               u32 reqvid)
 {
        u32 savefid = data->currfid;
        u32 savereqvid = reqvid;
@@ -457,7 +482,8 @@ static int core_voltage_post_transition(struct powernow_k8_data *data, u32 reqvi
 
                if (data->currvid != reqvid) {
                        printk(KERN_ERR PFX
-                              "ph3: failed vid transition\n, req 0x%x, curr 0x%x",
+                              "ph3: failed vid transition\n, "
+                              "req 0x%x, curr 0x%x",
                               reqvid, data->currvid);
                        return 1;
                }
@@ -508,7 +534,8 @@ static int check_supported_cpu(unsigned int cpu)
        if ((eax & CPUID_XFAM) == CPUID_XFAM_K8) {
                if (((eax & CPUID_USE_XFAM_XMOD) != CPUID_USE_XFAM_XMOD) ||
                    ((eax & CPUID_XMOD) > CPUID_XMOD_REV_MASK)) {
-                       printk(KERN_INFO PFX "Processor cpuid %x not supported\n", eax);
+                       printk(KERN_INFO PFX
+                               "Processor cpuid %x not supported\n", eax);
                        goto out;
                }
 
@@ -520,8 +547,10 @@ static int check_supported_cpu(unsigned int cpu)
                }
 
                cpuid(CPUID_FREQ_VOLT_CAPABILITIES, &eax, &ebx, &ecx, &edx);
-               if ((edx & P_STATE_TRANSITION_CAPABLE) != P_STATE_TRANSITION_CAPABLE) {
-                       printk(KERN_INFO PFX "Power state transitions not supported\n");
+               if ((edx & P_STATE_TRANSITION_CAPABLE)
+                       != P_STATE_TRANSITION_CAPABLE) {
+                       printk(KERN_INFO PFX
+                               "Power state transitions not supported\n");
                        goto out;
                }
        } else { /* must be a HW Pstate capable processor */
@@ -539,7 +568,8 @@ out:
        return rc;
 }
 
-static int check_pst_table(struct powernow_k8_data *data, struct pst_s *pst, u8 maxvid)
+static int check_pst_table(struct powernow_k8_data *data, struct pst_s *pst,
+               u8 maxvid)
 {
        unsigned int j;
        u8 lastfid = 0xff;
@@ -550,12 +580,14 @@ static int check_pst_table(struct powernow_k8_data *data, struct pst_s *pst, u8
                               j, pst[j].vid);
                        return -EINVAL;
                }
-               if (pst[j].vid < data->rvo) {   /* vid + rvo >= 0 */
+               if (pst[j].vid < data->rvo) {
+                       /* vid + rvo >= 0 */
                        printk(KERN_ERR FW_BUG PFX "0 vid exceeded with pstate"
                               " %d\n", j);
                        return -ENODEV;
                }
-               if (pst[j].vid < maxvid + data->rvo) {  /* vid + rvo >= maxvid */
+               if (pst[j].vid < maxvid + data->rvo) {
+                       /* vid + rvo >= maxvid */
                        printk(KERN_ERR FW_BUG PFX "maxvid exceeded with pstate"
                               " %d\n", j);
                        return -ENODEV;
@@ -579,23 +611,31 @@ static int check_pst_table(struct powernow_k8_data *data, struct pst_s *pst, u8
                return -EINVAL;
        }
        if (lastfid > LO_FID_TABLE_TOP)
-               printk(KERN_INFO FW_BUG PFX  "first fid not from lo freq table\n");
+               printk(KERN_INFO FW_BUG PFX
+                       "first fid not from lo freq table\n");
 
        return 0;
 }
 
+static void invalidate_entry(struct powernow_k8_data *data, unsigned int entry)
+{
+       data->powernow_table[entry].frequency = CPUFREQ_ENTRY_INVALID;
+}
+
 static void print_basics(struct powernow_k8_data *data)
 {
        int j;
        for (j = 0; j < data->numps; j++) {
-               if (data->powernow_table[j].frequency != CPUFREQ_ENTRY_INVALID) {
+               if (data->powernow_table[j].frequency !=
+                               CPUFREQ_ENTRY_INVALID) {
                        if (cpu_family == CPU_HW_PSTATE) {
-                               printk(KERN_INFO PFX "   %d : pstate %d (%d MHz)\n",
-                                       j,
+                               printk(KERN_INFO PFX
+                                       "   %d : pstate %d (%d MHz)\n", j,
                                        data->powernow_table[j].index,
                                        data->powernow_table[j].frequency/1000);
                        } else {
-                               printk(KERN_INFO PFX "   %d : fid 0x%x (%d MHz), vid 0x%x\n",
+                               printk(KERN_INFO PFX
+                                       "   %d : fid 0x%x (%d MHz), vid 0x%x\n",
                                        j,
                                        data->powernow_table[j].index & 0xff,
                                        data->powernow_table[j].frequency/1000,
@@ -604,20 +644,25 @@ static void print_basics(struct powernow_k8_data *data)
                }
        }
        if (data->batps)
-               printk(KERN_INFO PFX "Only %d pstates on battery\n", data->batps);
+               printk(KERN_INFO PFX "Only %d pstates on battery\n",
+                               data->batps);
 }
 
-static int fill_powernow_table(struct powernow_k8_data *data, struct pst_s *pst, u8 maxvid)
+static int fill_powernow_table(struct powernow_k8_data *data,
+               struct pst_s *pst, u8 maxvid)
 {
        struct cpufreq_frequency_table *powernow_table;
        unsigned int j;
 
-       if (data->batps) {    /* use ACPI support to get full speed on mains power */
-               printk(KERN_WARNING PFX "Only %d pstates usable (use ACPI driver for full range\n", data->batps);
+       if (data->batps) {
+               /* use ACPI support to get full speed on mains power */
+               printk(KERN_WARNING PFX
+                       "Only %d pstates usable (use ACPI driver for full "
+                       "range\n", data->batps);
                data->numps = data->batps;
        }
 
-       for ( j=1; j<data->numps; j++ ) {
+       for (j = 1; j < data->numps; j++) {
                if (pst[j-1].fid >= pst[j].fid) {
                        printk(KERN_ERR PFX "PST out of sequence\n");
                        return -EINVAL;
@@ -640,9 +685,11 @@ static int fill_powernow_table(struct powernow_k8_data *data, struct pst_s *pst,
        }
 
        for (j = 0; j < data->numps; j++) {
+               int freq;
                powernow_table[j].index = pst[j].fid; /* lower 8 bits */
                powernow_table[j].index |= (pst[j].vid << 8); /* upper 8 bits */
-               powernow_table[j].frequency = find_khz_freq_from_fid(pst[j].fid);
+               freq = find_khz_freq_from_fid(pst[j].fid);
+               powernow_table[j].frequency = freq;
        }
        powernow_table[data->numps].frequency = CPUFREQ_TABLE_END;
        powernow_table[data->numps].index = 0;
@@ -658,7 +705,8 @@ static int fill_powernow_table(struct powernow_k8_data *data, struct pst_s *pst,
                print_basics(data);
 
        for (j = 0; j < data->numps; j++)
-               if ((pst[j].fid==data->currfid) && (pst[j].vid==data->currvid))
+               if ((pst[j].fid == data->currfid) &&
+                   (pst[j].vid == data->currvid))
                        return 0;
 
        dprintk("currfid/vid do not match PST, ignoring\n");
@@ -698,7 +746,8 @@ static int find_psb_table(struct powernow_k8_data *data)
                }
 
                data->vstable = psb->vstable;
-               dprintk("voltage stabilization time: %d(*20us)\n", data->vstable);
+               dprintk("voltage stabilization time: %d(*20us)\n",
+                               data->vstable);
 
                dprintk("flags2: 0x%x\n", psb->flags2);
                data->rvo = psb->flags2 & 3;
@@ -713,11 +762,12 @@ static int find_psb_table(struct powernow_k8_data *data)
 
                dprintk("numpst: 0x%x\n", psb->num_tables);
                cpst = psb->num_tables;
-               if ((psb->cpuid == 0x00000fc0) || (psb->cpuid == 0x00000fe0) ){
+               if ((psb->cpuid == 0x00000fc0) ||
+                   (psb->cpuid == 0x00000fe0)) {
                        thiscpuid = cpuid_eax(CPUID_PROCESSOR_SIGNATURE);
-                       if ((thiscpuid == 0x00000fc0) || (thiscpuid == 0x00000fe0) ) {
+                       if ((thiscpuid == 0x00000fc0) ||
+                           (thiscpuid == 0x00000fe0))
                                cpst = 1;
-                       }
                }
                if (cpst != 1) {
                        printk(KERN_ERR FW_BUG PFX "numpst must be 1\n");
@@ -732,7 +782,8 @@ static int find_psb_table(struct powernow_k8_data *data)
 
                data->numps = psb->numps;
                dprintk("numpstates: 0x%x\n", data->numps);
-               return fill_powernow_table(data, (struct pst_s *)(psb+1), maxvid);
+               return fill_powernow_table(data,
+                               (struct pst_s *)(psb+1), maxvid);
        }
        /*
         * If you see this message, complain to BIOS manufacturer. If
@@ -750,23 +801,27 @@ static int find_psb_table(struct powernow_k8_data *data)
 }
 
 #ifdef CONFIG_X86_POWERNOW_K8_ACPI
-static void powernow_k8_acpi_pst_values(struct powernow_k8_data *data, unsigned int index)
+static void powernow_k8_acpi_pst_values(struct powernow_k8_data *data,
+               unsigned int index)
 {
+       acpi_integer control;
+
        if (!data->acpi_data.state_count || (cpu_family == CPU_HW_PSTATE))
                return;
 
-       data->irt = (data->acpi_data.states[index].control >> IRT_SHIFT) & IRT_MASK;
-       data->rvo = (data->acpi_data.states[index].control >> RVO_SHIFT) & RVO_MASK;
-       data->exttype = (data->acpi_data.states[index].control >> EXT_TYPE_SHIFT) & EXT_TYPE_MASK;
-       data->plllock = (data->acpi_data.states[index].control >> PLL_L_SHIFT) & PLL_L_MASK;
-       data->vidmvs = 1 << ((data->acpi_data.states[index].control >> MVS_SHIFT) & MVS_MASK);
-       data->vstable = (data->acpi_data.states[index].control >> VST_SHIFT) & VST_MASK;
-}
+       control = data->acpi_data.states[index].control; data->irt = (control
+                       >> IRT_SHIFT) & IRT_MASK; data->rvo = (control >>
+                               RVO_SHIFT) & RVO_MASK; data->exttype = (control
+                                       >> EXT_TYPE_SHIFT) & EXT_TYPE_MASK;
+       data->plllock = (control >> PLL_L_SHIFT) & PLL_L_MASK; data->vidmvs = 1
+               << ((control >> MVS_SHIFT) & MVS_MASK); data->vstable =
+               (control >> VST_SHIFT) & VST_MASK; }
 
 static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data)
 {
        struct cpufreq_frequency_table *powernow_table;
        int ret_val = -ENODEV;
+       acpi_integer space_id;
 
        if (acpi_processor_register_performance(&data->acpi_data, data->cpu)) {
                dprintk("register performance failed: bad ACPI data\n");
@@ -779,11 +834,12 @@ static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data)
                goto err_out;
        }
 
-       if ((data->acpi_data.control_register.space_id != ACPI_ADR_SPACE_FIXED_HARDWARE) ||
-               (data->acpi_data.status_register.space_id != ACPI_ADR_SPACE_FIXED_HARDWARE)) {
+       space_id = data->acpi_data.control_register.space_id;
+       if ((space_id != ACPI_ADR_SPACE_FIXED_HARDWARE) ||
+               (space_id != ACPI_ADR_SPACE_FIXED_HARDWARE)) {
                dprintk("Invalid control/status registers (%x - %x)\n",
                        data->acpi_data.control_register.space_id,
-                       data->acpi_data.status_register.space_id);
+                       space_id);
                goto err_out;
        }
 
@@ -802,7 +858,8 @@ static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data)
        if (ret_val)
                goto err_out_mem;
 
-       powernow_table[data->acpi_data.state_count].frequency = CPUFREQ_TABLE_END;
+       powernow_table[data->acpi_data.state_count].frequency =
+               CPUFREQ_TABLE_END;
        powernow_table[data->acpi_data.state_count].index = 0;
        data->powernow_table = powernow_table;
 
@@ -830,13 +887,15 @@ err_out_mem:
 err_out:
        acpi_processor_unregister_performance(&data->acpi_data, data->cpu);
 
-       /* data->acpi_data.state_count informs us at ->exit() whether ACPI was used */
+       /* data->acpi_data.state_count informs us at ->exit()
+        * whether ACPI was used */
        data->acpi_data.state_count = 0;
 
        return ret_val;
 }
 
-static int fill_powernow_table_pstate(struct powernow_k8_data *data, struct cpufreq_frequency_table *powernow_table)
+static int fill_powernow_table_pstate(struct powernow_k8_data *data,
+               struct cpufreq_frequency_table *powernow_table)
 {
        int i;
        u32 hi = 0, lo = 0;
@@ -848,84 +907,101 @@ static int fill_powernow_table_pstate(struct powernow_k8_data *data, struct cpuf
 
                index = data->acpi_data.states[i].control & HW_PSTATE_MASK;
                if (index > data->max_hw_pstate) {
-                       printk(KERN_ERR PFX "invalid pstate %d - bad value %d.\n", i, index);
-                       printk(KERN_ERR PFX "Please report to BIOS manufacturer\n");
-                       powernow_table[i].frequency = CPUFREQ_ENTRY_INVALID;
+                       printk(KERN_ERR PFX "invalid pstate %d - "
+                                       "bad value %d.\n", i, index);
+                       printk(KERN_ERR PFX "Please report to BIOS "
+                                       "manufacturer\n");
+                       invalidate_entry(data, i);
                        continue;
                }
                rdmsr(MSR_PSTATE_DEF_BASE + index, lo, hi);
                if (!(hi & HW_PSTATE_VALID_MASK)) {
                        dprintk("invalid pstate %d, ignoring\n", index);
-                       powernow_table[i].frequency = CPUFREQ_ENTRY_INVALID;
+                       invalidate_entry(data, i);
                        continue;
                }
 
                powernow_table[i].index = index;
 
-               powernow_table[i].frequency = data->acpi_data.states[i].core_frequency * 1000;
+               powernow_table[i].frequency =
+                       data->acpi_data.states[i].core_frequency * 1000;
        }
        return 0;
 }
 
-static int fill_powernow_table_fidvid(struct powernow_k8_data *data, struct cpufreq_frequency_table *powernow_table)
+static int fill_powernow_table_fidvid(struct powernow_k8_data *data,
+               struct cpufreq_frequency_table *powernow_table)
 {
        int i;
        int cntlofreq = 0;
+
        for (i = 0; i < data->acpi_data.state_count; i++) {
                u32 fid;
                u32 vid;
+               u32 freq, index;
+               acpi_integer status, control;
 
                if (data->exttype) {
-                       fid = data->acpi_data.states[i].status & EXT_FID_MASK;
-                       vid = (data->acpi_data.states[i].status >> VID_SHIFT) & EXT_VID_MASK;
+                       status =  data->acpi_data.states[i].status;
+                       fid = status & EXT_FID_MASK;
+                       vid = (status >> VID_SHIFT) & EXT_VID_MASK;
                } else {
-                       fid = data->acpi_data.states[i].control & FID_MASK;
-                       vid = (data->acpi_data.states[i].control >> VID_SHIFT) & VID_MASK;
+                       control =  data->acpi_data.states[i].control;
+                       fid = control & FID_MASK;
+                       vid = (control >> VID_SHIFT) & VID_MASK;
                }
 
                dprintk("   %d : fid 0x%x, vid 0x%x\n", i, fid, vid);
 
-               powernow_table[i].index = fid; /* lower 8 bits */
-               powernow_table[i].index |= (vid << 8); /* upper 8 bits */
-               powernow_table[i].frequency = find_khz_freq_from_fid(fid);
+               index = fid | (vid<<8);
+               powernow_table[i].index = index;
+
+               freq = find_khz_freq_from_fid(fid);
+               powernow_table[i].frequency = freq;
 
                /* verify frequency is OK */
-               if ((powernow_table[i].frequency > (MAX_FREQ * 1000)) ||
-                       (powernow_table[i].frequency < (MIN_FREQ * 1000))) {
-                       dprintk("invalid freq %u kHz, ignoring\n", powernow_table[i].frequency);
-                       powernow_table[i].frequency = CPUFREQ_ENTRY_INVALID;
+               if ((freq > (MAX_FREQ * 1000)) || (freq < (MIN_FREQ * 1000))) {
+                       dprintk("invalid freq %u kHz, ignoring\n", freq);
+                       invalidate_entry(data, i);
                        continue;
                }
 
-               /* verify voltage is OK - BIOSs are using "off" to indicate invalid */
+               /* verify voltage is OK -
+                * BIOSs are using "off" to indicate invalid */
                if (vid == VID_OFF) {
                        dprintk("invalid vid %u, ignoring\n", vid);
-                       powernow_table[i].frequency = CPUFREQ_ENTRY_INVALID;
+                       invalidate_entry(data, i);
                        continue;
                }
 
                /* verify only 1 entry from the lo frequency table */
                if (fid < HI_FID_TABLE_BOTTOM) {
                        if (cntlofreq) {
-                               /* if both entries are the same, ignore this one ... */
-                               if ((powernow_table[i].frequency != powernow_table[cntlofreq].frequency) ||
-                                   (powernow_table[i].index != powernow_table[cntlofreq].index)) {
-                                       printk(KERN_ERR PFX "Too many lo freq table entries\n");
+                               /* if both entries are the same,
+                                * ignore this one ... */
+                               if ((freq != powernow_table[cntlofreq].frequency) ||
+                                   (index != powernow_table[cntlofreq].index)) {
+                                       printk(KERN_ERR PFX
+                                               "Too many lo freq table "
+                                               "entries\n");
                                        return 1;
                                }
 
-                               dprintk("double low frequency table entry, ignoring it.\n");
-                               powernow_table[i].frequency = CPUFREQ_ENTRY_INVALID;
+                               dprintk("double low frequency table entry, "
+                                               "ignoring it.\n");
+                               invalidate_entry(data, i);
                                continue;
                        } else
                                cntlofreq = i;
                }
 
-               if (powernow_table[i].frequency != (data->acpi_data.states[i].core_frequency * 1000)) {
-                       printk(KERN_INFO PFX "invalid freq entries %u kHz vs. %u kHz\n",
-                               powernow_table[i].frequency,
-                               (unsigned int) (data->acpi_data.states[i].core_frequency * 1000));
-                       powernow_table[i].frequency = CPUFREQ_ENTRY_INVALID;
+               if (freq != (data->acpi_data.states[i].core_frequency * 1000)) {
+                       printk(KERN_INFO PFX "invalid freq entries "
+                               "%u kHz vs. %u kHz\n", freq,
+                               (unsigned int)
+                               (data->acpi_data.states[i].core_frequency
+                                * 1000));
+                       invalidate_entry(data, i);
                        continue;
                }
        }
@@ -935,7 +1011,8 @@ static int fill_powernow_table_fidvid(struct powernow_k8_data *data, struct cpuf
 static void powernow_k8_cpu_exit_acpi(struct powernow_k8_data *data)
 {
        if (data->acpi_data.state_count)
-               acpi_processor_unregister_performance(&data->acpi_data, data->cpu);
+               acpi_processor_unregister_performance(&data->acpi_data,
+                               data->cpu);
        free_cpumask_var(data->acpi_data.shared_cpu_map);
 }
 
@@ -954,14 +1031,25 @@ static int get_transition_latency(struct powernow_k8_data *data)
 }
 
 #else
-static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data) { return -ENODEV; }
-static void powernow_k8_cpu_exit_acpi(struct powernow_k8_data *data) { return; }
-static void powernow_k8_acpi_pst_values(struct powernow_k8_data *data, unsigned int index) { return; }
+static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data)
+{
+       return -ENODEV;
+}
+static void powernow_k8_cpu_exit_acpi(struct powernow_k8_data *data)
+{
+       return;
+}
+static void powernow_k8_acpi_pst_values(struct powernow_k8_data *data,
+               unsigned int index)
+{
+       return;
+}
 static int get_transition_latency(struct powernow_k8_data *data) { return 0; }
 #endif /* CONFIG_X86_POWERNOW_K8_ACPI */
 
 /* Take a frequency, and issue the fid/vid transition command */
-static int transition_frequency_fidvid(struct powernow_k8_data *data, unsigned int index)
+static int transition_frequency_fidvid(struct powernow_k8_data *data,
+               unsigned int index)
 {
        u32 fid = 0;
        u32 vid = 0;
@@ -989,7 +1077,8 @@ static int transition_frequency_fidvid(struct powernow_k8_data *data, unsigned i
                return 0;
        }
 
-       if ((fid < HI_FID_TABLE_BOTTOM) && (data->currfid < HI_FID_TABLE_BOTTOM)) {
+       if ((fid < HI_FID_TABLE_BOTTOM) &&
+           (data->currfid < HI_FID_TABLE_BOTTOM)) {
                printk(KERN_ERR PFX
                       "ignoring illegal change in lo freq table-%x to 0x%x\n",
                       data->currfid, fid);
@@ -1017,7 +1106,8 @@ static int transition_frequency_fidvid(struct powernow_k8_data *data, unsigned i
 }
 
 /* Take a frequency, and issue the hardware pstate transition command */
-static int transition_frequency_pstate(struct powernow_k8_data *data, unsigned int index)
+static int transition_frequency_pstate(struct powernow_k8_data *data,
+               unsigned int index)
 {
        u32 pstate = 0;
        int res, i;
@@ -1029,7 +1119,8 @@ static int transition_frequency_pstate(struct powernow_k8_data *data, unsigned i
        pstate = index & HW_PSTATE_MASK;
        if (pstate > data->max_hw_pstate)
                return 0;
-       freqs.old = find_khz_freq_from_pstate(data->powernow_table, data->currpstate);
+       freqs.old = find_khz_freq_from_pstate(data->powernow_table,
+                       data->currpstate);
        freqs.new = find_khz_freq_from_pstate(data->powernow_table, pstate);
 
        for_each_cpu_mask_nr(i, *(data->available_cores)) {
@@ -1048,7 +1139,8 @@ static int transition_frequency_pstate(struct powernow_k8_data *data, unsigned i
 }
 
 /* Driver entry point to switch to the target frequency */
-static int powernowk8_target(struct cpufreq_policy *pol, unsigned targfreq, unsigned relation)
+static int powernowk8_target(struct cpufreq_policy *pol,
+               unsigned targfreq, unsigned relation)
 {
        cpumask_t oldmask;
        struct powernow_k8_data *data = per_cpu(powernow_data, pol->cpu);
@@ -1087,14 +1179,18 @@ static int powernowk8_target(struct cpufreq_policy *pol, unsigned targfreq, unsi
                dprintk("targ: curr fid 0x%x, vid 0x%x\n",
                data->currfid, data->currvid);
 
-               if ((checkvid != data->currvid) || (checkfid != data->currfid)) {
+               if ((checkvid != data->currvid) ||
+                   (checkfid != data->currfid)) {
                        printk(KERN_INFO PFX
-                               "error - out of sync, fix 0x%x 0x%x, vid 0x%x 0x%x\n",
-                               checkfid, data->currfid, checkvid, data->currvid);
+                               "error - out of sync, fix 0x%x 0x%x, "
+                               "vid 0x%x 0x%x\n",
+                               checkfid, data->currfid,
+                               checkvid, data->currvid);
                }
        }
 
-       if (cpufreq_frequency_table_target(pol, data->powernow_table, targfreq, relation, &newstate))
+       if (cpufreq_frequency_table_target(pol, data->powernow_table,
+                               targfreq, relation, &newstate))
                goto err_out;
 
        mutex_lock(&fidvid_mutex);
@@ -1114,7 +1210,8 @@ static int powernowk8_target(struct cpufreq_policy *pol, unsigned targfreq, unsi
        mutex_unlock(&fidvid_mutex);
 
        if (cpu_family == CPU_HW_PSTATE)
-               pol->cur = find_khz_freq_from_pstate(data->powernow_table, newstate);
+               pol->cur = find_khz_freq_from_pstate(data->powernow_table,
+                               newstate);
        else
                pol->cur = find_khz_freq_from_fid(data->currfid);
        ret = 0;
@@ -1164,10 +1261,11 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
                 */
                if (num_online_cpus() != 1) {
 #ifndef CONFIG_ACPI_PROCESSOR
-                       printk(KERN_ERR PFX "ACPI Processor support is required "
-                              "for SMP systems but is absent. Please load the "
-                              "ACPI Processor module before starting this "
-                              "driver.\n");
+                       printk(KERN_ERR PFX
+                               "ACPI Processor support is required for "
+                               "SMP systems but is absent. Please load the "
+                               "ACPI Processor module before starting this "
+                               "driver.\n");
 #else
                        printk(KERN_ERR FW_BUG PFX "Your BIOS does not provide"
                               " ACPI _PSS objects in a way that Linux "
@@ -1228,7 +1326,8 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
        data->available_cores = pol->cpus;
 
        if (cpu_family == CPU_HW_PSTATE)
-               pol->cur = find_khz_freq_from_pstate(data->powernow_table, data->currpstate);
+               pol->cur = find_khz_freq_from_pstate(data->powernow_table,
+                               data->currpstate);
        else
                pol->cur = find_khz_freq_from_fid(data->currfid);
        dprintk("policy current frequency %d kHz\n", pol->cur);
@@ -1245,7 +1344,8 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
        cpufreq_frequency_table_get_attr(data->powernow_table, pol->cpu);
 
        if (cpu_family == CPU_HW_PSTATE)
-               dprintk("cpu_init done, current pstate 0x%x\n", data->currpstate);
+               dprintk("cpu_init done, current pstate 0x%x\n",
+                               data->currpstate);
        else
                dprintk("cpu_init done, current fid 0x%x, vid 0x%x\n",
                        data->currfid, data->currvid);
@@ -1262,7 +1362,7 @@ err_out:
        return -ENODEV;
 }
 
-static int __devexit powernowk8_cpu_exit (struct cpufreq_policy *pol)
+static int __devexit powernowk8_cpu_exit(struct cpufreq_policy *pol)
 {
        struct powernow_k8_data *data = per_cpu(powernow_data, pol->cpu);
 
@@ -1279,7 +1379,7 @@ static int __devexit powernowk8_cpu_exit (struct cpufreq_policy *pol)
        return 0;
 }
 
-static unsigned int powernowk8_get (unsigned int cpu)
+static unsigned int powernowk8_get(unsigned int cpu)
 {
        struct powernow_k8_data *data;
        cpumask_t oldmask = current->cpus_allowed;
@@ -1315,7 +1415,7 @@ out:
        return khz;
 }
 
-static struct freq_attrpowernow_k8_attr[] = {
+static struct freq_attr *powernow_k8_attr[] = {
        &cpufreq_freq_attr_scaling_available_freqs,
        NULL,
 };
@@ -1360,7 +1460,8 @@ static void __exit powernowk8_exit(void)
        cpufreq_unregister_driver(&cpufreq_amd64_driver);
 }
 
-MODULE_AUTHOR("Paul Devriendt <paul.devriendt@amd.com> and Mark Langsdorf <mark.langsdorf@amd.com>");
+MODULE_AUTHOR("Paul Devriendt <paul.devriendt@amd.com> and "
+               "Mark Langsdorf <mark.langsdorf@amd.com>");
 MODULE_DESCRIPTION("AMD Athlon 64 and Opteron processor frequency driver.");
 MODULE_LICENSE("GPL");