[avpatel:riscv_trace_support_v3 55/60] drivers/hwtracing/rvtrace/rvtrace-ramsink.c:114:23: warning: variable 'trram_ctrl' set but not used

[kernel test robot <lkp@intel.com>]

tree:   https://github.com/avpatel/linux.git riscv_trace_support_v3
head:   42acf36a226e81d2e18eb340bbfd6d7ab09b8c1e
commit: 32999331eb99f67ab5abc1a7c8a62a8bf75ed0f2 [55/60] rvtrace: Add trace ramsink driver
config: riscv-randconfig-002-20260216 (https://download.01.org/0day-ci/archive/20260216/202602161901.2CFPiPwM-lkp@intel.com/config)
compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project e86750b29fa0ff207cd43213d66dabe565417638)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260216/202602161901.2CFPiPwM-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202602161901.2CFPiPwM-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/hwtracing/rvtrace/rvtrace-ramsink.c:114:23: warning: variable 'trram_ctrl' set but not used [-Wunused-but-set-variable]
     114 |         u32 wp_low, wp_high, trram_ctrl;
         |                              ^
   1 warning generated.


vim +/trram_ctrl +114 drivers/hwtracing/rvtrace/rvtrace-ramsink.c

   107	
   108	static size_t rvtrace_ramsink_copyto_auxbuf(struct rvtrace_component *comp,
   109						    struct rvtrace_perf_auxbuf *buf)
   110	{
   111		struct rvtrace_ramsink_priv *priv = dev_get_drvdata(&comp->dev);
   112		size_t size_wp_end = 0, size_start_wp = 0;
   113		struct trace_buf src, dst;
 > 114		u32 wp_low, wp_high, trram_ctrl;
   115		u64 buf_cur_head;
   116	
   117		dst.base = buf->base;
   118		dst.len = buf->length;
   119		dst.cur = buf->pos;
   120		src.base = priv->va;
   121		src.len = priv->size;
   122		wp_low = rvtrace_read32(comp->pdata, RVTRACE_RAMSINK_WPLOW_OFF);
   123		wp_high = rvtrace_read32(comp->pdata, RVTRACE_RAMSINK_WPHIGH_OFF);
   124		buf_cur_head = (u64)(wp_high) << 32 | wp_low;
   125		trram_ctrl = rvtrace_read32(comp->pdata, RVTRACE_COMPONENT_CTRL_OFFSET);
   126		if (buf_cur_head & 0x1) {
   127			buf_cur_head &= ~RVTRACE_RAMSINK_WPLOW_WRAP;
   128			rvtrace_write32(comp->pdata, lower_32_bits(priv->start),
   129					RVTRACE_RAMSINK_WPLOW_OFF);
   130			rvtrace_write32(comp->pdata, upper_32_bits(priv->start),
   131					RVTRACE_RAMSINK_WPHIGH_OFF);
   132			src.cur = buf_cur_head - priv->start;
   133			size_wp_end = priv->end - buf_cur_head;
   134			tbuf_to_pbuf_copy(&src, &dst, size_wp_end);
   135		}
   136	
   137		src.cur = 0;
   138		size_start_wp = buf_cur_head - priv->start;
   139		tbuf_to_pbuf_copy(&src, &dst, size_start_wp);
   140		dev_dbg(&comp->dev, "Copied %zu bytes\n", size_wp_end + size_start_wp);
   141		return (size_wp_end + size_start_wp);
   142	}
   143	

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