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Date: Tue, 9 Dec 2014 14:46:03 +0000
From: dwalker@...o99.com
To: Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
Cc: David Brown <davidb@...eaurora.org>,
Bryan Huntsman <bryanh@...eaurora.org>,
Russell King <linux@....linux.org.uk>,
linux-arm-msm@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arch: arm: mach-msm: smd.c: Remove some unused functions
Seems ok to me. These files, and functions, are also in drivers/staging/dream/
are you removing them there also ?
On Sun, Dec 07, 2014 at 02:12:20AM +0100, Rickard Strandqvist wrote:
> Removes some functions that are not used anywhere:
> smsm_set_sleep_duration() smsm_get_state() smd_wait_until_writable()
> smd_wait_until_readable() smd_write_atomic() smd_sleep_exit()
>
> This was partially found by using a static code analysis program called cppcheck.
>
> Signed-off-by: Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
> ---
> arch/arm/mach-msm/include/mach/msm_smd.h | 9 ---
> arch/arm/mach-msm/smd.c | 105 ------------------------------
> arch/arm/mach-msm/smd_private.h | 2 -
> 3 files changed, 116 deletions(-)
>
> diff --git a/arch/arm/mach-msm/include/mach/msm_smd.h b/arch/arm/mach-msm/include/mach/msm_smd.h
> index 029463e..48ddef98 100644
> --- a/arch/arm/mach-msm/include/mach/msm_smd.h
> +++ b/arch/arm/mach-msm/include/mach/msm_smd.h
> @@ -40,7 +40,6 @@ int smd_read(smd_channel_t *ch, void *data, int len);
> ** it will return the requested length written or an error.
> */
> int smd_write(smd_channel_t *ch, const void *data, int len);
> -int smd_write_atomic(smd_channel_t *ch, const void *data, int len);
>
> int smd_write_avail(smd_channel_t *ch);
> int smd_read_avail(smd_channel_t *ch);
> @@ -57,14 +56,6 @@ int smd_cur_packet_size(smd_channel_t *ch);
> void smd_kick(smd_channel_t *ch);
>
>
> -#if 0
> -/* these are interruptable waits which will block you until the specified
> -** number of bytes are readable or writable.
> -*/
> -int smd_wait_until_readable(smd_channel_t *ch, int bytes);
> -int smd_wait_until_writable(smd_channel_t *ch, int bytes);
> -#endif
> -
> typedef enum {
> SMD_PORT_DS = 0,
> SMD_PORT_DIAG,
> diff --git a/arch/arm/mach-msm/smd.c b/arch/arm/mach-msm/smd.c
> index b1588a1..4bc1e71 100644
> --- a/arch/arm/mach-msm/smd.c
> +++ b/arch/arm/mach-msm/smd.c
> @@ -401,36 +401,6 @@ static inline int smd_need_int(struct smd_channel *ch)
> return 0;
> }
>
> -void smd_sleep_exit(void)
> -{
> - unsigned long flags;
> - struct smd_channel *ch;
> - int need_int = 0;
> -
> - spin_lock_irqsave(&smd_lock, flags);
> - list_for_each_entry(ch, &smd_ch_list_modem, ch_list) {
> - if (smd_need_int(ch)) {
> - need_int = 1;
> - break;
> - }
> - }
> - list_for_each_entry(ch, &smd_ch_list_dsp, ch_list) {
> - if (smd_need_int(ch)) {
> - need_int = 1;
> - break;
> - }
> - }
> - spin_unlock_irqrestore(&smd_lock, flags);
> - do_smd_probe();
> -
> - if (need_int) {
> - if (msm_smd_debug_mask & MSM_SMD_DEBUG)
> - pr_info("smd_sleep_exit need interrupt\n");
> - tasklet_schedule(&smd_fake_irq_tasklet);
> - }
> -}
> -
> -
> void smd_kick(smd_channel_t *ch)
> {
> unsigned long flags;
> @@ -747,16 +717,6 @@ int smd_write(smd_channel_t *ch, const void *data, int len)
> return ch->write(ch, data, len);
> }
>
> -int smd_write_atomic(smd_channel_t *ch, const void *data, int len)
> -{
> - unsigned long flags;
> - int res;
> - spin_lock_irqsave(&smd_lock, flags);
> - res = ch->write(ch, data, len);
> - spin_unlock_irqrestore(&smd_lock, flags);
> - return res;
> -}
> -
> int smd_read_avail(smd_channel_t *ch)
> {
> return ch->read_avail(ch);
> @@ -767,16 +727,6 @@ int smd_write_avail(smd_channel_t *ch)
> return ch->write_avail(ch);
> }
>
> -int smd_wait_until_readable(smd_channel_t *ch, int bytes)
> -{
> - return -1;
> -}
> -
> -int smd_wait_until_writable(smd_channel_t *ch, int bytes)
> -{
> - return -1;
> -}
> -
> int smd_cur_packet_size(smd_channel_t *ch)
> {
> return ch->current_packet;
> @@ -875,61 +825,6 @@ int smsm_change_state(enum smsm_state_item item,
> return 0;
> }
>
> -uint32_t smsm_get_state(enum smsm_state_item item)
> -{
> - unsigned long flags;
> - uint32_t rv;
> -
> - spin_lock_irqsave(&smem_lock, flags);
> -
> - rv = readl(smd_info.state + item * 4);
> -
> - if (item == SMSM_STATE_MODEM && (rv & SMSM_RESET))
> - handle_modem_crash();
> -
> - spin_unlock_irqrestore(&smem_lock, flags);
> -
> - return rv;
> -}
> -
> -#ifdef CONFIG_ARCH_MSM_SCORPION
> -
> -int smsm_set_sleep_duration(uint32_t delay)
> -{
> - struct msm_dem_slave_data *ptr;
> -
> - ptr = smem_find(SMEM_APPS_DEM_SLAVE_DATA, sizeof(*ptr));
> - if (ptr == NULL) {
> - pr_err("smsm_set_sleep_duration <SM NO APPS_DEM_SLAVE_DATA>\n");
> - return -EIO;
> - }
> - if (msm_smd_debug_mask & MSM_SMSM_DEBUG)
> - pr_info("smsm_set_sleep_duration %d -> %d\n",
> - ptr->sleep_time, delay);
> - ptr->sleep_time = delay;
> - return 0;
> -}
> -
> -#else
> -
> -int smsm_set_sleep_duration(uint32_t delay)
> -{
> - uint32_t *ptr;
> -
> - ptr = smem_find(SMEM_SMSM_SLEEP_DELAY, sizeof(*ptr));
> - if (ptr == NULL) {
> - pr_err("smsm_set_sleep_duration <SM NO SLEEP_DELAY>\n");
> - return -EIO;
> - }
> - if (msm_smd_debug_mask & MSM_SMSM_DEBUG)
> - pr_info("smsm_set_sleep_duration %d -> %d\n",
> - *ptr, delay);
> - *ptr = delay;
> - return 0;
> -}
> -
> -#endif
> -
> int smd_core_init(void)
> {
> int r;
> diff --git a/arch/arm/mach-msm/smd_private.h b/arch/arm/mach-msm/smd_private.h
> index 727bfe6..702f34e 100644
> --- a/arch/arm/mach-msm/smd_private.h
> +++ b/arch/arm/mach-msm/smd_private.h
> @@ -148,8 +148,6 @@ enum smsm_state_item {
>
> void *smem_alloc(unsigned id, unsigned size);
> int smsm_change_state(enum smsm_state_item item, uint32_t clear_mask, uint32_t set_mask);
> -uint32_t smsm_get_state(enum smsm_state_item item);
> -int smsm_set_sleep_duration(uint32_t delay);
> void smsm_print_sleep_info(void);
>
> #define SMEM_NUM_SMD_CHANNELS 64
> --
> 1.7.10.4
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