[PATCH 00/21] ASoC: Intel: fix cppcheck warnings
This patchset tries to reduce the number of warnings on those drivers, so that cppcheck can become a viable tool to detect issues (currently hundreds of reports).
Most of the problems are related to unnecessary/redundant variable assignments, prototypes and one nice logical mistake resulting in an always-true condition.
Pierre-Louis Bossart (21): ASoC: Intel: Atom: sst-atom-controls: remove redundant assignments ASoC: Intel: Atom: compress: remove redundant assignment ASoC: Intel: Atom: platform-pcm: remove redundant assignment ASoC: Intel: Atom: sst: remove useless NULL assignment ASoC: Intel: Atom: remove redundant initialization ASoC: Intel: Atom: sst_pvt: remove redundant initialization ASoC: Intel: Atom: platform-pcm: fix redundant return ASoC: Intel: Atom: remove useless assignment ASoC: Intel: Atom: sst_loader: remove always-true condition ASoC: Intel: Atom: sst_pvt: simplify return handling ASoC: Intel: Atom: (cosmetic) align parameters ASoC: Intel: Baytrail: (cosmetic) align function parameters ASoC: Intel: common: (cosmetic) align function parameters ASoC: Intel: haswell: (cosmetic) align function parameters ASoC: Intel: haswell-ipc: remove redundant assignments ASoC: Intel: Skylake: skl-nhlt: remove redundant initialization ASoC: Intel: Skylake: cldma: remove redundant initialization ASoC: Intel: Skylake: sst-utils: remove redundant assignment ASoC: Intel: Skylake: skl-topology: remove redundant assignments ASoC: Intel: Skylake: skl-topology: remove redundant assignment ASoC: Intel: Skylake: (cosmetic) align function parameters
sound/soc/intel/atom/sst-atom-controls.c | 4 +-- .../intel/atom/sst-mfld-platform-compress.c | 3 +- sound/soc/intel/atom/sst-mfld-platform-pcm.c | 4 +-- sound/soc/intel/atom/sst-mfld-platform.h | 4 +-- sound/soc/intel/atom/sst/sst.c | 5 ++- sound/soc/intel/atom/sst/sst.h | 34 +++++++++---------- sound/soc/intel/atom/sst/sst_loader.c | 3 +- sound/soc/intel/atom/sst/sst_pvt.c | 4 +-- sound/soc/intel/baytrail/sst-baytrail-ipc.h | 3 +- sound/soc/intel/common/sst-dsp-priv.h | 2 +- sound/soc/intel/common/sst-dsp.h | 15 ++++---- sound/soc/intel/haswell/sst-haswell-ipc.c | 4 +-- sound/soc/intel/haswell/sst-haswell-ipc.h | 2 +- sound/soc/intel/skylake/cnl-sst-dsp.h | 4 +-- sound/soc/intel/skylake/skl-nhlt.c | 2 +- sound/soc/intel/skylake/skl-sst-cldma.c | 2 +- sound/soc/intel/skylake/skl-sst-ipc.h | 16 ++++----- sound/soc/intel/skylake/skl-sst-utils.c | 2 +- sound/soc/intel/skylake/skl-topology.c | 8 ++--- sound/soc/intel/skylake/skl-topology.h | 8 ++--- sound/soc/intel/skylake/skl.h | 2 +- 21 files changed, 63 insertions(+), 68 deletions(-)
cppcheck complains of a possible NULL pointer dereference but setting a pointer before using list_for_each_entry() is not useful.
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/intel/atom/sst-atom-controls.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/sound/soc/intel/atom/sst-atom-controls.c b/sound/soc/intel/atom/sst-atom-controls.c index ff42f629b035..6b5a34a15acb 100644 --- a/sound/soc/intel/atom/sst-atom-controls.c +++ b/sound/soc/intel/atom/sst-atom-controls.c @@ -299,7 +299,7 @@ static int sst_find_and_send_pipe_algo(struct sst_data *drv, { int ret = 0; struct sst_algo_control *bc; - struct sst_module *algo = NULL; + struct sst_module *algo;
dev_dbg(&drv->pdev->dev, "Enter: widget=%s\n", pipe);
@@ -602,7 +602,7 @@ static int sst_set_pipe_gain(struct sst_ids *ids, int ret = 0; struct sst_gain_mixer_control *mc; struct sst_gain_value *gv; - struct sst_module *gain = NULL; + struct sst_module *gain;
list_for_each_entry(gain, &ids->gain_list, node) { struct snd_kcontrol *kctl = gain->kctl;
Fix cppcheck warning:
sound/soc/intel/atom/sst-mfld-platform-compress.c:46:14: style: Variable 'ret_val' is assigned a value that is never used. [unreadVariable] int ret_val = 0; ^
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/intel/atom/sst-mfld-platform-compress.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/sound/soc/intel/atom/sst-mfld-platform-compress.c b/sound/soc/intel/atom/sst-mfld-platform-compress.c index 1595e01a7e12..89c9c5ad6b21 100644 --- a/sound/soc/intel/atom/sst-mfld-platform-compress.c +++ b/sound/soc/intel/atom/sst-mfld-platform-compress.c @@ -42,8 +42,7 @@ static void sst_drain_notify(void *arg) static int sst_platform_compr_open(struct snd_soc_component *component, struct snd_compr_stream *cstream) { - - int ret_val = 0; + int ret_val; struct snd_compr_runtime *runtime = cstream->runtime; struct sst_runtime_stream *stream;
fix cppcheck warning:
sound/soc/intel/atom/sst-mfld-platform-pcm.c:387:9: warning: Identical condition and return expression 'ret_val', return value is always 0 [identicalConditionAfterEarlyExit] return ret_val; ^
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/intel/atom/sst-mfld-platform-pcm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/intel/atom/sst-mfld-platform-pcm.c b/sound/soc/intel/atom/sst-mfld-platform-pcm.c index 49b9f18472bc..58628c7e7a0a 100644 --- a/sound/soc/intel/atom/sst-mfld-platform-pcm.c +++ b/sound/soc/intel/atom/sst-mfld-platform-pcm.c @@ -365,7 +365,7 @@ static int sst_media_prepare(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct sst_runtime_stream *stream; - int ret_val = 0, str_id; + int ret_val, str_id;
stream = substream->runtime->private_data; str_id = stream->stream_info.str_id;
Fix cppcheck warnings:
sound/soc/intel/atom/sst/sst.c:373:2: warning: Assignment of function parameter has no effect outside the function. Did you forget dereferencing it? [uselessAssignmentPtrArg] ctx = NULL; ^
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/intel/atom/sst/sst.c | 1 - 1 file changed, 1 deletion(-)
diff --git a/sound/soc/intel/atom/sst/sst.c b/sound/soc/intel/atom/sst/sst.c index d6563985e008..1d1c58e48f42 100644 --- a/sound/soc/intel/atom/sst/sst.c +++ b/sound/soc/intel/atom/sst/sst.c @@ -370,7 +370,6 @@ void sst_context_cleanup(struct intel_sst_drv *ctx) kfree(ctx->fw_in_mem); ctx->fw_in_mem = NULL; sst_memcpy_free_resources(ctx); - ctx = NULL; } EXPORT_SYMBOL_GPL(sst_context_cleanup);
Fix cppcheck warnings:
sound/soc/intel/atom/sst/sst.c:427:13: style: Variable 'ret' is assigned a value that is never used. [unreadVariable] int i, ret = 0; ^
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/intel/atom/sst/sst.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/intel/atom/sst/sst.c b/sound/soc/intel/atom/sst/sst.c index 1d1c58e48f42..1900a37d03cc 100644 --- a/sound/soc/intel/atom/sst/sst.c +++ b/sound/soc/intel/atom/sst/sst.c @@ -423,7 +423,7 @@ static int intel_sst_suspend(struct device *dev) { struct intel_sst_drv *ctx = dev_get_drvdata(dev); struct sst_fw_save *fw_save; - int i, ret = 0; + int i, ret;
/* check first if we are already in SW reset */ if (ctx->sst_state == SST_RESET)
Fix cppcheck warning:
sound/soc/intel/atom/sst/sst_pvt.c:201:9: warning: Identical condition and return expression 'retval', return value is always 0 [identicalConditionAfterEarlyExit] return retval; ^
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/intel/atom/sst/sst_pvt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/intel/atom/sst/sst_pvt.c b/sound/soc/intel/atom/sst/sst_pvt.c index 053c27707147..3bd1bd3e43d6 100644 --- a/sound/soc/intel/atom/sst/sst_pvt.c +++ b/sound/soc/intel/atom/sst/sst_pvt.c @@ -188,7 +188,7 @@ int sst_create_block_and_ipc_msg(struct ipc_post **arg, bool large, struct intel_sst_drv *sst_drv_ctx, struct sst_block **block, u32 msg_id, u32 drv_id) { - int retval = 0; + int retval;
retval = sst_create_ipc_msg(arg, large); if (retval)
Fix cppcheck warning
return ret_val; ^ sound/soc/intel/atom/sst-mfld-platform-pcm.c:384:6: note: If condition 'ret_val' is true, the function will return/exit if (ret_val) ^ sound/soc/intel/atom/sst-mfld-platform-pcm.c:387:9: note: Returning identical expression 'ret_val' return ret_val; ^
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/intel/atom/sst-mfld-platform-pcm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/intel/atom/sst-mfld-platform-pcm.c b/sound/soc/intel/atom/sst-mfld-platform-pcm.c index 58628c7e7a0a..5de2e0b35a1d 100644 --- a/sound/soc/intel/atom/sst-mfld-platform-pcm.c +++ b/sound/soc/intel/atom/sst-mfld-platform-pcm.c @@ -384,7 +384,7 @@ static int sst_media_prepare(struct snd_pcm_substream *substream, if (ret_val) return ret_val; substream->runtime->hw.info = SNDRV_PCM_INFO_BLOCK_TRANSFER; - return ret_val; + return 0; }
static int sst_enable_ssp(struct snd_pcm_substream *substream,
Fix cppcheck warning:
sound/soc/intel/atom/sst/sst.c:52:20: style: Variable 'size' is assigned a value that is never used. [unreadVariable] unsigned int size = 0; ^
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/intel/atom/sst/sst.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/intel/atom/sst/sst.c b/sound/soc/intel/atom/sst/sst.c index 1900a37d03cc..d450b9848028 100644 --- a/sound/soc/intel/atom/sst/sst.c +++ b/sound/soc/intel/atom/sst/sst.c @@ -49,7 +49,7 @@ static irqreturn_t intel_sst_interrupt_mrfld(int irq, void *context) union ipc_header_mrfld header; union sst_imr_reg_mrfld imr; struct ipc_post *msg = NULL; - unsigned int size = 0; + unsigned int size; struct intel_sst_drv *drv = (struct intel_sst_drv *) context; irqreturn_t retval = IRQ_HANDLED;
Fix cppcheck warning:
sound/soc/intel/atom/sst/sst_loader.c:401:43: style: Redundant condition: If 'EXPR == 4', the comparison 'EXPR != 3' is always true. [redundantCondition]
if (sst_drv_ctx->sst_state != SST_RESET || ^
In this case, if sst_state == SST_SHUTDOWN then the first test is already true. 2014 bug, yay.
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/intel/atom/sst/sst_loader.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/sound/soc/intel/atom/sst/sst_loader.c b/sound/soc/intel/atom/sst/sst_loader.c index fc91a304256b..5c42cce90ce2 100644 --- a/sound/soc/intel/atom/sst/sst_loader.c +++ b/sound/soc/intel/atom/sst/sst_loader.c @@ -398,8 +398,7 @@ int sst_load_fw(struct intel_sst_drv *sst_drv_ctx)
dev_dbg(sst_drv_ctx->dev, "sst_load_fw\n");
- if (sst_drv_ctx->sst_state != SST_RESET || - sst_drv_ctx->sst_state == SST_SHUTDOWN) + if (sst_drv_ctx->sst_state != SST_RESET) return -EAGAIN;
if (!sst_drv_ctx->fw_in_mem) {
Fix cppcheck warning:
sound/soc/intel/atom/sst/sst_pvt.c:201:9: warning: Identical condition and return expression 'retval', return value is always 0 [identicalConditionAfterEarlyExit] return retval; ^
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/intel/atom/sst/sst_pvt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/intel/atom/sst/sst_pvt.c b/sound/soc/intel/atom/sst/sst_pvt.c index 3bd1bd3e43d6..c099f7df6168 100644 --- a/sound/soc/intel/atom/sst/sst_pvt.c +++ b/sound/soc/intel/atom/sst/sst_pvt.c @@ -198,7 +198,7 @@ int sst_create_block_and_ipc_msg(struct ipc_post **arg, bool large, kfree(*arg); return -ENOMEM; } - return retval; + return 0; }
/*
Fix cppcheck warnings and use same function parameters in headers and C code.
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/intel/atom/sst-mfld-platform.h | 4 +-- sound/soc/intel/atom/sst/sst.h | 34 ++++++++++++------------ 2 files changed, 19 insertions(+), 19 deletions(-)
diff --git a/sound/soc/intel/atom/sst-mfld-platform.h b/sound/soc/intel/atom/sst-mfld-platform.h index 10c9ecfa7038..8b5777d3229a 100644 --- a/sound/soc/intel/atom/sst-mfld-platform.h +++ b/sound/soc/intel/atom/sst-mfld-platform.h @@ -173,6 +173,6 @@ struct sst_data { struct snd_soc_card *soc_card; struct sst_cmd_sba_hw_set_ssp ssp_cmd; }; -int sst_register_dsp(struct sst_device *sst); -int sst_unregister_dsp(struct sst_device *sst); +int sst_register_dsp(struct sst_device *dev); +int sst_unregister_dsp(struct sst_device *dev); #endif diff --git a/sound/soc/intel/atom/sst/sst.h b/sound/soc/intel/atom/sst/sst.h index 50441cf6f77d..2bee646e81b8 100644 --- a/sound/soc/intel/atom/sst/sst.h +++ b/sound/soc/intel/atom/sst/sst.h @@ -428,34 +428,34 @@ struct intel_sst_ops { };
int sst_realloc_stream(struct intel_sst_drv *sst_drv_ctx, int str_id); -int sst_pause_stream(struct intel_sst_drv *sst_drv_ctx, int id); -int sst_resume_stream(struct intel_sst_drv *sst_drv_ctx, int id); -int sst_drop_stream(struct intel_sst_drv *sst_drv_ctx, int id); -int sst_free_stream(struct intel_sst_drv *sst_drv_ctx, int id); +int sst_pause_stream(struct intel_sst_drv *sst_drv_ctx, int str_id); +int sst_resume_stream(struct intel_sst_drv *sst_drv_ctx, int str_id); +int sst_drop_stream(struct intel_sst_drv *sst_drv_ctx, int str_id); +int sst_free_stream(struct intel_sst_drv *sst_drv_ctx, int str_id); int sst_start_stream(struct intel_sst_drv *sst_drv_ctx, int str_id); -int sst_send_byte_stream_mrfld(struct intel_sst_drv *ctx, - struct snd_sst_bytes_v2 *sbytes); +int sst_send_byte_stream_mrfld(struct intel_sst_drv *sst_drv_ctx, + struct snd_sst_bytes_v2 *bytes); int sst_set_stream_param(int str_id, struct snd_sst_params *str_param); int sst_set_metadata(int str_id, char *params); -int sst_get_stream(struct intel_sst_drv *sst_drv_ctx, +int sst_get_stream(struct intel_sst_drv *ctx, struct snd_sst_params *str_param); int sst_get_stream_allocated(struct intel_sst_drv *ctx, struct snd_sst_params *str_param, struct snd_sst_lib_download **lib_dnld); int sst_drain_stream(struct intel_sst_drv *sst_drv_ctx, int str_id, bool partial_drain); -int sst_post_message_mrfld(struct intel_sst_drv *ctx, - struct ipc_post *msg, bool sync); -void sst_process_reply_mrfld(struct intel_sst_drv *ctx, struct ipc_post *msg); -int sst_start_mrfld(struct intel_sst_drv *ctx); -int intel_sst_reset_dsp_mrfld(struct intel_sst_drv *ctx); -void intel_sst_clear_intr_mrfld(struct intel_sst_drv *ctx); - -int sst_load_fw(struct intel_sst_drv *ctx); +int sst_post_message_mrfld(struct intel_sst_drv *sst_drv_ctx, + struct ipc_post *ipc_msg, bool sync); +void sst_process_reply_mrfld(struct intel_sst_drv *sst_drv_ctx, struct ipc_post *msg); +int sst_start_mrfld(struct intel_sst_drv *sst_drv_ctx); +int intel_sst_reset_dsp_mrfld(struct intel_sst_drv *sst_drv_ctx); +void intel_sst_clear_intr_mrfld(struct intel_sst_drv *sst_drv_ctx); + +int sst_load_fw(struct intel_sst_drv *sst_drv_ctx); int sst_load_library(struct snd_sst_lib_download *lib, u8 ops); void sst_post_download_mrfld(struct intel_sst_drv *ctx); int sst_get_block_stream(struct intel_sst_drv *sst_drv_ctx); -void sst_memcpy_free_resources(struct intel_sst_drv *ctx); +void sst_memcpy_free_resources(struct intel_sst_drv *sst_drv_ctx);
int sst_wait_interruptible(struct intel_sst_drv *sst_drv_ctx, struct sst_block *block); @@ -490,7 +490,7 @@ int sst_prepare_and_post_msg(struct intel_sst_drv *sst, bool large, bool fill_dsp, bool sync, bool response);
void sst_process_pending_msg(struct work_struct *work); -int sst_assign_pvt_id(struct intel_sst_drv *sst_drv_ctx); +int sst_assign_pvt_id(struct intel_sst_drv *drv); int sst_validate_strid(struct intel_sst_drv *sst_drv_ctx, int str_id); struct stream_info *get_stream_info(struct intel_sst_drv *sst_drv_ctx, int str_id);
Fix cppcheck warning:
sound/soc/intel/baytrail/sst-baytrail-ipc.c:339:8: style:inconclusive: Function 'sst_byt_stream_new' argument 3 names different: declaration 'get_write_position' definition 'notify_position'. [funcArgNamesDifferent]
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/intel/baytrail/sst-baytrail-ipc.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/sound/soc/intel/baytrail/sst-baytrail-ipc.h b/sound/soc/intel/baytrail/sst-baytrail-ipc.h index 755098509327..cc960b79e9e1 100644 --- a/sound/soc/intel/baytrail/sst-baytrail-ipc.h +++ b/sound/soc/intel/baytrail/sst-baytrail-ipc.h @@ -26,8 +26,7 @@ extern struct sst_ops sst_byt_ops;
/* stream API */ struct sst_byt_stream *sst_byt_stream_new(struct sst_byt *byt, int id, - uint32_t (*get_write_position)(struct sst_byt_stream *stream, - void *data), + uint32_t (*notify_position)(struct sst_byt_stream *stream, void *data), void *data);
/* stream configuration */
Fix cppcheck style warnings, align headers and code and remove useless prototypes.
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/intel/common/sst-dsp-priv.h | 2 +- sound/soc/intel/common/sst-dsp.h | 15 +++++++-------- 2 files changed, 8 insertions(+), 9 deletions(-)
diff --git a/sound/soc/intel/common/sst-dsp-priv.h b/sound/soc/intel/common/sst-dsp-priv.h index 3d8765ce3e0d..9a760123b46f 100644 --- a/sound/soc/intel/common/sst-dsp-priv.h +++ b/sound/soc/intel/common/sst-dsp-priv.h @@ -344,7 +344,7 @@ void sst_fw_unload(struct sst_fw *sst_fw); /* Create/Free firmware modules */ struct sst_module *sst_module_new(struct sst_fw *sst_fw, struct sst_module_template *template, void *private); -void sst_module_free(struct sst_module *module); +void sst_module_free(struct sst_module *sst_module); struct sst_module *sst_module_get_from_id(struct sst_dsp *dsp, u32 id); int sst_module_alloc_blocks(struct sst_module *module); int sst_module_free_blocks(struct sst_module *module); diff --git a/sound/soc/intel/common/sst-dsp.h b/sound/soc/intel/common/sst-dsp.h index 604a80c5859b..d55014587415 100644 --- a/sound/soc/intel/common/sst-dsp.h +++ b/sound/soc/intel/common/sst-dsp.h @@ -268,15 +268,14 @@ void sst_dsp_ipc_msg_tx(struct sst_dsp *dsp, u32 msg); u32 sst_dsp_ipc_msg_rx(struct sst_dsp *dsp);
/* Mailbox management */ -int sst_dsp_mailbox_init(struct sst_dsp *dsp, u32 inbox_offset, +int sst_dsp_mailbox_init(struct sst_dsp *sst, u32 inbox_offset, size_t inbox_size, u32 outbox_offset, size_t outbox_size); -void sst_dsp_inbox_write(struct sst_dsp *dsp, void *message, size_t bytes); -void sst_dsp_inbox_read(struct sst_dsp *dsp, void *message, size_t bytes); -void sst_dsp_outbox_write(struct sst_dsp *dsp, void *message, size_t bytes); -void sst_dsp_outbox_read(struct sst_dsp *dsp, void *message, size_t bytes); -void sst_dsp_mailbox_dump(struct sst_dsp *dsp, size_t bytes); -int sst_dsp_register_poll(struct sst_dsp *dsp, u32 offset, u32 mask, - u32 expected_value, u32 timeout, char *operation); +void sst_dsp_inbox_write(struct sst_dsp *sst, void *message, size_t bytes); +void sst_dsp_inbox_read(struct sst_dsp *sst, void *message, size_t bytes); +void sst_dsp_outbox_write(struct sst_dsp *sst, void *message, size_t bytes); +void sst_dsp_outbox_read(struct sst_dsp *sst, void *message, size_t bytes); +int sst_dsp_register_poll(struct sst_dsp *ctx, u32 offset, u32 mask, + u32 target, u32 time, char *operation);
/* Debug */ void sst_dsp_dump(struct sst_dsp *sst);
Fix cppcheck warning:
sound/soc/intel/haswell/sst-haswell-ipc.c:963:8: style:inconclusive: Function 'sst_hsw_stream_new' argument 3 names different: declaration 'get_write_position' definition 'notify_position'. [funcArgNamesDifferent]
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/intel/haswell/sst-haswell-ipc.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/intel/haswell/sst-haswell-ipc.h b/sound/soc/intel/haswell/sst-haswell-ipc.h index fdc70c77e688..646dbbba327b 100644 --- a/sound/soc/intel/haswell/sst-haswell-ipc.h +++ b/sound/soc/intel/haswell/sst-haswell-ipc.h @@ -414,7 +414,7 @@ int sst_hsw_mixer_get_volume(struct sst_hsw *hsw, u32 stage_id, u32 channel,
/* Stream API */ struct sst_hsw_stream *sst_hsw_stream_new(struct sst_hsw *hsw, int id, - u32 (*get_write_position)(struct sst_hsw_stream *stream, void *data), + u32 (*notify_position)(struct sst_hsw_stream *stream, void *data), void *data);
int sst_hsw_stream_free(struct sst_hsw *hsw, struct sst_hsw_stream *stream);
Fix cppcheck warnings:
sound/soc/intel/haswell/sst-haswell-ipc.c:430:8: style: Variable 'i' is assigned a value that is never used. [unreadVariable]
sound/soc/intel/haswell/sst-haswell-ipc.c:1792:8: style: Variable 'id' is assigned a value that is never used. [unreadVariable]
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/intel/haswell/sst-haswell-ipc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/sound/soc/intel/haswell/sst-haswell-ipc.c b/sound/soc/intel/haswell/sst-haswell-ipc.c index 0ff89ea96ccf..345fd7c1b1d7 100644 --- a/sound/soc/intel/haswell/sst-haswell-ipc.c +++ b/sound/soc/intel/haswell/sst-haswell-ipc.c @@ -427,7 +427,7 @@ static void hsw_fw_ready(struct sst_hsw *hsw, u32 header) u32 offset; u8 fw_info[IPC_MAX_MAILBOX_BYTES - 5 * sizeof(u32)]; char *tmp[5], *pinfo; - int i = 0; + int i;
offset = (header & 0x1FFFFFFF) << 3;
@@ -1789,7 +1789,7 @@ int sst_hsw_store_param_line(struct sst_hsw *hsw, u8 *buf)
int sst_hsw_load_param_line(struct sst_hsw *hsw, u8 *buf) { - u8 id = 0; + u8 id;
/* read the first matching line from param buffer */ while (hsw->param_idx_r < WAVES_PARAM_LINES) {
Fix cppcheck warning:
sound/soc/intel/skylake/skl-nhlt.c:203:21: style: Variable 'rate' is assigned a value that is never used. [unreadVariable] unsigned long rate = 0; ^
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/intel/skylake/skl-nhlt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/intel/skylake/skl-nhlt.c b/sound/soc/intel/skylake/skl-nhlt.c index d9c8f5cb389e..87c891c46291 100644 --- a/sound/soc/intel/skylake/skl-nhlt.c +++ b/sound/soc/intel/skylake/skl-nhlt.c @@ -200,7 +200,7 @@ static void skl_get_ssp_clks(struct skl_dev *skl, struct skl_ssp_clk *ssp_clks, struct skl_ssp_clk *sclk, *sclkfs; struct nhlt_fmt_cfg *fmt_cfg; struct wav_fmt_ext *wav_fmt; - unsigned long rate = 0; + unsigned long rate; bool present = false; int rate_index = 0; u16 channels, bps;
Fix cppcheck warning:
sound/soc/intel/skylake/skl-sst-cldma.c:248:10: style: Variable 'ret' is assigned a value that is never used. [unreadVariable] int ret = 0; ^
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/intel/skylake/skl-sst-cldma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/intel/skylake/skl-sst-cldma.c b/sound/soc/intel/skylake/skl-sst-cldma.c index 36f697c61074..b91f7a652a2b 100644 --- a/sound/soc/intel/skylake/skl-sst-cldma.c +++ b/sound/soc/intel/skylake/skl-sst-cldma.c @@ -245,7 +245,7 @@ static int skl_cldma_copy_to_buf(struct sst_dsp *ctx, const void *bin, u32 total_size, bool wait) { - int ret = 0; + int ret; bool start = true; unsigned int excess_bytes; u32 size;
Fix cppcheck warning:
sound/soc/intel/skylake/skl-sst-utils.c:240:10: style: Variable 'ret' is assigned a value that is never used. [unreadVariable] int ret = 0; ^
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/intel/skylake/skl-sst-utils.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/intel/skylake/skl-sst-utils.c b/sound/soc/intel/skylake/skl-sst-utils.c index b233f89517c1..57ea815d3f04 100644 --- a/sound/soc/intel/skylake/skl-sst-utils.c +++ b/sound/soc/intel/skylake/skl-sst-utils.c @@ -237,7 +237,7 @@ int snd_skl_parse_uuids(struct sst_dsp *ctx, const struct firmware *fw, struct uuid_module *module; struct firmware stripped_fw; unsigned int safe_file; - int ret = 0; + int ret;
/* Get the FW pointer to derive ADSP header */ stripped_fw.data = fw->data;
Cppcheck complains about possible NULL pointer dereferences but the assignments are actually not needed before walking through lists.
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/intel/skylake/skl-topology.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/sound/soc/intel/skylake/skl-topology.c b/sound/soc/intel/skylake/skl-topology.c index b7d2d97d12a7..3928a1645820 100644 --- a/sound/soc/intel/skylake/skl-topology.c +++ b/sound/soc/intel/skylake/skl-topology.c @@ -550,8 +550,8 @@ static int skl_tplg_unload_pipe_modules(struct skl_dev *skl, struct skl_pipe *pipe) { int ret = 0; - struct skl_pipe_module *w_module = NULL; - struct skl_module_cfg *mconfig = NULL; + struct skl_pipe_module *w_module; + struct skl_module_cfg *mconfig;
list_for_each_entry(w_module, &pipe->w_list, node) { guid_t *uuid_mod; @@ -1893,7 +1893,7 @@ static int skl_tplg_be_set_src_pipe_params(struct snd_soc_dai *dai, static int skl_tplg_be_set_sink_pipe_params(struct snd_soc_dai *dai, struct snd_soc_dapm_widget *w, struct skl_pipe_params *params) { - struct snd_soc_dapm_path *p = NULL; + struct snd_soc_dapm_path *p; int ret = -EIO;
snd_soc_dapm_widget_for_each_sink_path(w, p) {
Fix cppcheck warning:
sound/soc/intel/skylake/skl-topology.c:2879:29: style: Variable 'block_size' is assigned a value that is never used. [unreadVariable]
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/intel/skylake/skl-topology.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/intel/skylake/skl-topology.c b/sound/soc/intel/skylake/skl-topology.c index 3928a1645820..40bee10b0c65 100644 --- a/sound/soc/intel/skylake/skl-topology.c +++ b/sound/soc/intel/skylake/skl-topology.c @@ -2876,7 +2876,7 @@ static int skl_tplg_get_pvt_data(struct snd_soc_tplg_dapm_widget *tplg_w, struct skl_module_cfg *mconfig) { struct snd_soc_tplg_vendor_array *array; - int num_blocks, block_size = 0, block_type, off = 0; + int num_blocks, block_size, block_type, off = 0; char *data; int ret;
Fix cppcheck warnings and align headers with code.
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/intel/skylake/cnl-sst-dsp.h | 4 ++-- sound/soc/intel/skylake/skl-sst-ipc.h | 16 ++++++++-------- sound/soc/intel/skylake/skl-topology.h | 8 ++++---- sound/soc/intel/skylake/skl.h | 2 +- 4 files changed, 15 insertions(+), 15 deletions(-)
diff --git a/sound/soc/intel/skylake/cnl-sst-dsp.h b/sound/soc/intel/skylake/cnl-sst-dsp.h index 7bd4d2a8fdfa..d3cf4bd1a070 100644 --- a/sound/soc/intel/skylake/cnl-sst-dsp.h +++ b/sound/soc/intel/skylake/cnl-sst-dsp.h @@ -82,8 +82,8 @@ struct sst_generic_ipc; #define CNL_ADSPCS_CPA_SHIFT 24 #define CNL_ADSPCS_CPA(x) (x << CNL_ADSPCS_CPA_SHIFT)
-int cnl_dsp_enable_core(struct sst_dsp *ctx, unsigned int core); -int cnl_dsp_disable_core(struct sst_dsp *ctx, unsigned int core); +int cnl_dsp_enable_core(struct sst_dsp *ctx, unsigned int core_mask); +int cnl_dsp_disable_core(struct sst_dsp *ctx, unsigned int core_mask); irqreturn_t cnl_dsp_sst_interrupt(int irq, void *dev_id); void cnl_dsp_free(struct sst_dsp *dsp);
diff --git a/sound/soc/intel/skylake/skl-sst-ipc.h b/sound/soc/intel/skylake/skl-sst-ipc.h index 08ac31778325..aaaab3b3ec42 100644 --- a/sound/soc/intel/skylake/skl-sst-ipc.h +++ b/sound/soc/intel/skylake/skl-sst-ipc.h @@ -107,12 +107,12 @@ struct skl_ipc_d0ix_msg {
irqreturn_t skl_dsp_irq_thread_handler(int irq, void *context);
-int skl_ipc_create_pipeline(struct sst_generic_ipc *sst_ipc, +int skl_ipc_create_pipeline(struct sst_generic_ipc *ipc, u16 ppl_mem_size, u8 ppl_type, u8 instance_id, u8 lp_mode);
-int skl_ipc_delete_pipeline(struct sst_generic_ipc *sst_ipc, u8 instance_id); +int skl_ipc_delete_pipeline(struct sst_generic_ipc *ipc, u8 instance_id);
-int skl_ipc_set_pipeline_state(struct sst_generic_ipc *sst_ipc, +int skl_ipc_set_pipeline_state(struct sst_generic_ipc *ipc, u8 instance_id, enum skl_ipc_pipeline_state state);
int skl_ipc_save_pipeline(struct sst_generic_ipc *ipc, @@ -120,10 +120,10 @@ int skl_ipc_save_pipeline(struct sst_generic_ipc *ipc,
int skl_ipc_restore_pipeline(struct sst_generic_ipc *ipc, u8 instance_id);
-int skl_ipc_init_instance(struct sst_generic_ipc *sst_ipc, +int skl_ipc_init_instance(struct sst_generic_ipc *ipc, struct skl_ipc_init_instance_msg *msg, void *param_data);
-int skl_ipc_bind_unbind(struct sst_generic_ipc *sst_ipc, +int skl_ipc_bind_unbind(struct sst_generic_ipc *ipc, struct skl_ipc_bind_unbind_msg *msg);
int skl_ipc_load_modules(struct sst_generic_ipc *ipc, @@ -150,12 +150,12 @@ int skl_ipc_set_d0ix(struct sst_generic_ipc *ipc,
int skl_ipc_check_D0i0(struct sst_dsp *dsp, bool state);
-void skl_ipc_int_enable(struct sst_dsp *dsp); +void skl_ipc_int_enable(struct sst_dsp *ctx); void skl_ipc_op_int_enable(struct sst_dsp *ctx); void skl_ipc_op_int_disable(struct sst_dsp *ctx); -void skl_ipc_int_disable(struct sst_dsp *dsp); +void skl_ipc_int_disable(struct sst_dsp *ctx);
-bool skl_ipc_int_status(struct sst_dsp *dsp); +bool skl_ipc_int_status(struct sst_dsp *ctx); void skl_ipc_free(struct sst_generic_ipc *ipc); int skl_ipc_init(struct device *dev, struct skl_dev *skl); void skl_clear_module_cnt(struct sst_dsp *ctx); diff --git a/sound/soc/intel/skylake/skl-topology.h b/sound/soc/intel/skylake/skl-topology.h index 5e93ad85e06d..fb011862fb24 100644 --- a/sound/soc/intel/skylake/skl-topology.h +++ b/sound/soc/intel/skylake/skl-topology.h @@ -453,7 +453,7 @@ int skl_dsp_set_dma_control(struct skl_dev *skl, u32 *caps, void skl_tplg_set_be_dmic_config(struct snd_soc_dai *dai, struct skl_pipe_params *params, int stream); int skl_tplg_init(struct snd_soc_component *component, - struct hdac_bus *ebus); + struct hdac_bus *bus); void skl_tplg_exit(struct snd_soc_component *component, struct hdac_bus *bus); struct skl_module_cfg *skl_tplg_fe_get_cpr_module( @@ -476,13 +476,13 @@ int skl_stop_pipe(struct skl_dev *skl, struct skl_pipe *pipe);
int skl_reset_pipe(struct skl_dev *skl, struct skl_pipe *pipe);
-int skl_init_module(struct skl_dev *skl, struct skl_module_cfg *module_config); +int skl_init_module(struct skl_dev *skl, struct skl_module_cfg *mconfig);
int skl_bind_modules(struct skl_dev *skl, struct skl_module_cfg - *src_module, struct skl_module_cfg *dst_module); + *src_mcfg, struct skl_module_cfg *dst_mcfg);
int skl_unbind_modules(struct skl_dev *skl, struct skl_module_cfg - *src_module, struct skl_module_cfg *dst_module); + *src_mcfg, struct skl_module_cfg *dst_mcfg);
int skl_set_module_params(struct skl_dev *skl, u32 *params, int size, u32 param_id, struct skl_module_cfg *mcfg); diff --git a/sound/soc/intel/skylake/skl.h b/sound/soc/intel/skylake/skl.h index 26057f38a014..857ea17e3c9f 100644 --- a/sound/soc/intel/skylake/skl.h +++ b/sound/soc/intel/skylake/skl.h @@ -166,7 +166,7 @@ int skl_platform_unregister(struct device *dev); int skl_platform_register(struct device *dev);
struct nhlt_specific_cfg *skl_get_ep_blob(struct skl_dev *skl, u32 instance, - u8 link_type, u8 s_fmt, u8 no_ch, + u8 link_type, u8 s_fmt, u8 num_ch, u32 s_rate, u8 dirn, u8 dev_type);
int skl_nhlt_update_topology_bin(struct skl_dev *skl);
On Thu, 13 Aug 2020 15:01:26 -0500, Pierre-Louis Bossart wrote:
This patchset tries to reduce the number of warnings on those drivers, so that cppcheck can become a viable tool to detect issues (currently hundreds of reports).
Most of the problems are related to unnecessary/redundant variable assignments, prototypes and one nice logical mistake resulting in an always-true condition.
[...]
Applied to
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next
Thanks!
[01/21] ASoC: Intel: Atom: sst-atom-controls: remove redundant assignments commit: c6a6586126d3f8010a181c01d4dd6aa90a953b66 [02/21] ASoC: Intel: Atom: compress: remove redundant assignment commit: b0a2a93dc3acb4c2868c60ef0d3278289a532816 [03/21] ASoC: Intel: Atom: platform-pcm: remove redundant assignment commit: b0754c55adf9a2aeb3c3732eb159615e91c70397 [04/21] ASoC: Intel: Atom: sst: remove useless NULL assignment commit: 4e3aab3217cdd1506ff89642e554995cbfa0806a [05/21] ASoC: Intel: Atom: remove redundant initialization commit: 30701e0f3b1a134cbd000ca607a26342a10f6383 [06/21] ASoC: Intel: Atom: sst_pvt: remove redundant initialization commit: f3352e6b7c27078d9342c9faa8332b8113719f4b [07/21] ASoC: Intel: Atom: platform-pcm: fix redundant return commit: 5ab56a224398a05ade1762d591321f238c284b19 [08/21] ASoC: Intel: Atom: remove useless assignment commit: eeb460f21250d46e5fa8e8429c38de47fe912481 [09/21] ASoC: Intel: Atom: sst_loader: remove always-true condition commit: b66a056e1539d8470013fff00f476377a616baa3 [10/21] ASoC: Intel: Atom: sst_pvt: simplify return handling commit: 7b99434c2c35e6045cc65992e3aaf231012e93ef [11/21] ASoC: Intel: Atom: (cosmetic) align parameters commit: cfe8cc9419918bc56f528fa370aa8435d99b8353 [12/21] ASoC: Intel: Baytrail: (cosmetic) align function parameters commit: 0af1fcea054497ba784fc2d9b0125c4c2f6609e3 [13/21] ASoC: Intel: common: (cosmetic) align function parameters commit: 2b84a26f99762774b98fdb1e66be7400c0d22199 [14/21] ASoC: Intel: haswell: (cosmetic) align function parameters commit: c9b1f82d53930762094af0381c5dc7a8a2b6a86d [15/21] ASoC: Intel: haswell-ipc: remove redundant assignments commit: 523615b716005b189f5a6cd9f7a255a902e45bce [16/21] ASoC: Intel: Skylake: skl-nhlt: remove redundant initialization commit: 8be54edba9096056ff5d0fb2a29d0b3b962fa60c [17/21] ASoC: Intel: Skylake: cldma: remove redundant initialization commit: 3b4d60f0f7dd13594916bcd6644ea6208597d993 [18/21] ASoC: Intel: Skylake: sst-utils: remove redundant assignment commit: c6193988e945b658bffd09174edae1b43b8ab0b6 [19/21] ASoC: Intel: Skylake: skl-topology: remove redundant assignments commit: 25722cf606f6c58b1f2f709434aeb418c4b0b1ca [20/21] ASoC: Intel: Skylake: skl-topology: remove redundant assignment commit: 11a790f94b340c3deb893c6229c3948233a91a4a [21/21] ASoC: Intel: Skylake: (cosmetic) align function parameters commit: 8f0ccd59bcc9305241507cb48c6aaa08a9f375c8
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.
If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.
Please add any relevant lists and maintainers to the CCs when replying to this mail.
Thanks, Mark
participants (2)
-
Mark Brown -
Pierre-Louis Bossart