[RFC PATCH v2 67/78] hw/pci-host/pnv_phb3.c: add fallthrough pseudo-keyword

[Emmanouil Pitsidianakis]

In preparation of raising -Wimplicit-fallthrough to 5, replace all
fall-through comments with the fallthrough attribute pseudo-keyword.

Signed-off-by: Emmanouil Pitsidianakis <manos.pitsidianakis@linaro.org>
---
 hw/pci-host/pnv_phb3.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/pci-host/pnv_phb3.c b/hw/pci-host/pnv_phb3.c
index c5e58f4086..6a805d3900 100644
--- a/hw/pci-host/pnv_phb3.c
+++ b/hw/pci-host/pnv_phb3.c
@@ -470,121 +470,121 @@ static void pnv_phb3_update_all_msi_regions(PnvPHB3 
*phb)
 void pnv_phb3_reg_write(void *opaque, hwaddr off, uint64_t val, unsigned size)
 {
     PnvPHB3 *phb = opaque;
     bool changed;
 
     /* Special case configuration data */
     if ((off & 0xfffc) == PHB_CONFIG_DATA) {
         pnv_phb3_config_write(phb, off & 0x3, size, val);
         return;
     }
 
     /* Other registers are 64-bit only */
     if (size != 8 || off & 0x7) {
         phb3_error(phb, "Invalid register access, offset: 0x%"PRIx64" size: 
%d",
                    off, size);
         return;
     }
 
     /* Handle masking & filtering */
     switch (off) {
     case PHB_M64_UPPER_BITS:
         val &= 0xfffc000000000000ull;
         break;
     case PHB_Q_DMA_R:
         /*
          * This is enough logic to make SW happy but we aren't actually
          * quiescing the DMAs
          */
         if (val & PHB_Q_DMA_R_AUTORESET) {
             val = 0;
         } else {
             val &= PHB_Q_DMA_R_QUIESCE_DMA;
         }
         break;
     /* LEM stuff */
     case PHB_LEM_FIR_AND_MASK:
         phb->regs[PHB_LEM_FIR_ACCUM >> 3] &= val;
         return;
     case PHB_LEM_FIR_OR_MASK:
         phb->regs[PHB_LEM_FIR_ACCUM >> 3] |= val;
         return;
     case PHB_LEM_ERROR_AND_MASK:
         phb->regs[PHB_LEM_ERROR_MASK >> 3] &= val;
         return;
     case PHB_LEM_ERROR_OR_MASK:
         phb->regs[PHB_LEM_ERROR_MASK >> 3] |= val;
         return;
     case PHB_LEM_WOF:
         val = 0;
         break;
     }
 
     /* Record whether it changed */
     changed = phb->regs[off >> 3] != val;
 
     /* Store in register cache first */
     phb->regs[off >> 3] = val;
 
     /* Handle side effects */
     switch (off) {
     case PHB_PHB3_CONFIG:
         if (changed) {
             pnv_phb3_update_all_msi_regions(phb);
         }
-        /* fall through */
+        fallthrough;
     case PHB_M32_BASE_ADDR:
     case PHB_M32_BASE_MASK:
     case PHB_M32_START_ADDR:
         if (changed) {
             pnv_phb3_check_m32(phb);
         }
         break;
     case PHB_M64_UPPER_BITS:
         if (changed) {
             pnv_phb3_check_all_m64s(phb);
         }
         break;
     case PHB_LSI_SOURCE_ID:
         if (changed) {
             pnv_phb3_lsi_src_id_write(phb, val);
         }
         break;
 
     /* IODA table accesses */
     case PHB_IODA_DATA0:
         pnv_phb3_ioda_write(phb, val);
         break;
 
     /* RTC invalidation */
     case PHB_RTC_INVALIDATE:
         pnv_phb3_rtc_invalidate(phb, val);
         break;
 
     /* FFI request */
     case PHB_FFI_REQUEST:
         pnv_phb3_msi_ffi(&phb->msis, val);
         break;
 
     /* Silent simple writes */
     case PHB_CONFIG_ADDRESS:
     case PHB_IODA_ADDR:
     case PHB_TCE_KILL:
     case PHB_TCE_SPEC_CTL:
     case PHB_PEST_BAR:
     case PHB_PELTV_BAR:
     case PHB_RTT_BAR:
     case PHB_RBA_BAR:
     case PHB_IVT_BAR:
     case PHB_FFI_LOCK:
     case PHB_LEM_FIR_ACCUM:
     case PHB_LEM_ERROR_MASK:
     case PHB_LEM_ACTION0:
     case PHB_LEM_ACTION1:
         break;
 
     /* Noise on anything else */
     default:
         qemu_log_mask(LOG_UNIMP, "phb3: reg_write 0x%"PRIx64"=%"PRIx64"\n",
                       off, val);
     }
 }
-- 
2.39.2