| Message ID | 20240531210152.1878443-2-Frank.Li@nxp.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | [1/2] dmaengine: fsl-edma: request per-channel IRQ only when channel is allocated | expand |
Hi Frank,
kernel test robot noticed the following build errors:
[auto build test ERROR on vkoul-dmaengine/next]
[also build test ERROR on linus/master v6.10-rc1 next-20240531]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Frank-Li/dmaengine-fsl-edma-remove-redundant-idle-field-from-fsl_chan/20240601-050401
base: https://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine.git next
patch link: https://lore.kernel.org/r/20240531210152.1878443-2-Frank.Li%40nxp.com
patch subject: [PATCH 2/2] dmaengine: fsl-edma: remove redundant "idle" field from fsl_chan
config: hexagon-allmodconfig (https://download.01.org/0day-ci/archive/20240601/202406011229.5vpeVXX2-lkp@intel.com/config)
compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project bafda89a0944d947fc4b3b5663185e07a397ac30)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240601/202406011229.5vpeVXX2-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/202406011229.5vpeVXX2-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from drivers/dma/mcf-edma-main.c:7:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:14:
In file included from arch/hexagon/include/asm/io.h:328:
include/asm-generic/io.h:548:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
548 | val = __raw_readb(PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:561:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
561 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
| ^
In file included from drivers/dma/mcf-edma-main.c:7:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:14:
In file included from arch/hexagon/include/asm/io.h:328:
include/asm-generic/io.h:574:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
574 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
| ^
In file included from drivers/dma/mcf-edma-main.c:7:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:14:
In file included from arch/hexagon/include/asm/io.h:328:
include/asm-generic/io.h:585:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
585 | __raw_writeb(value, PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:595:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
595 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:605:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
605 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
In file included from drivers/dma/mcf-edma-main.c:8:
In file included from include/linux/dmaengine.h:12:
In file included from include/linux/scatterlist.h:8:
In file included from include/linux/mm.h:2253:
include/linux/vmstat.h:514:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
514 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
| ~~~~~~~~~~~ ^ ~~~
>> drivers/dma/mcf-edma-main.c:67:24: error: no member named 'idle' in 'struct fsl_edma_chan'
67 | mcf_edma->chans[ch].idle = true;
| ~~~~~~~~~~~~~~~~~~~ ^
drivers/dma/mcf-edma-main.c:199:13: error: no member named 'idle' in 'struct fsl_edma_chan'
199 | mcf_chan->idle = true;
| ~~~~~~~~ ^
7 warnings and 2 errors generated.
vim +67 drivers/dma/mcf-edma-main.c
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 39
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 40 static irqreturn_t mcf_edma_err_handler(int irq, void *dev_id)
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 41 {
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 42 struct fsl_edma_engine *mcf_edma = dev_id;
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 43 struct edma_regs *regs = &mcf_edma->regs;
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 44 unsigned int err, ch;
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 45
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 46 err = ioread32(regs->errl);
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 47 if (!err)
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 48 return IRQ_NONE;
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 49
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 50 for (ch = 0; ch < (EDMA_CHANNELS / 2); ch++) {
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 51 if (err & BIT(ch)) {
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 52 fsl_edma_disable_request(&mcf_edma->chans[ch]);
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 53 iowrite8(EDMA_CERR_CERR(ch), regs->cerr);
79434f9b973616 drivers/dma/mcf-edma-main.c Frank Li 2023-08-21 54 fsl_edma_err_chan_handler(&mcf_edma->chans[ch]);
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 55 }
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 56 }
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 57
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 58 err = ioread32(regs->errh);
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 59 if (!err)
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 60 return IRQ_NONE;
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 61
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 62 for (ch = (EDMA_CHANNELS / 2); ch < EDMA_CHANNELS; ch++) {
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 63 if (err & (BIT(ch - (EDMA_CHANNELS / 2)))) {
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 64 fsl_edma_disable_request(&mcf_edma->chans[ch]);
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 65 iowrite8(EDMA_CERR_CERR(ch), regs->cerr);
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 66 mcf_edma->chans[ch].status = DMA_ERROR;
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 @67 mcf_edma->chans[ch].idle = true;
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 68 }
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 69 }
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 70
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 71 return IRQ_HANDLED;
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 72 }
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 73
Hi Frank,
kernel test robot noticed the following build errors:
[auto build test ERROR on vkoul-dmaengine/next]
[also build test ERROR on linus/master v6.10-rc1 next-20240531]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Frank-Li/dmaengine-fsl-edma-remove-redundant-idle-field-from-fsl_chan/20240601-050401
base: https://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine.git next
patch link: https://lore.kernel.org/r/20240531210152.1878443-2-Frank.Li%40nxp.com
patch subject: [PATCH 2/2] dmaengine: fsl-edma: remove redundant "idle" field from fsl_chan
config: alpha-allyesconfig (https://download.01.org/0day-ci/archive/20240601/202406011344.s3sPp61I-lkp@intel.com/config)
compiler: alpha-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240601/202406011344.s3sPp61I-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/202406011344.s3sPp61I-lkp@intel.com/
All errors (new ones prefixed by >>):
drivers/dma/mcf-edma-main.c: In function 'mcf_edma_err_handler':
>> drivers/dma/mcf-edma-main.c:67:44: error: 'struct fsl_edma_chan' has no member named 'idle'
67 | mcf_edma->chans[ch].idle = true;
| ^
drivers/dma/mcf-edma-main.c: In function 'mcf_edma_probe':
drivers/dma/mcf-edma-main.c:199:25: error: 'struct fsl_edma_chan' has no member named 'idle'
199 | mcf_chan->idle = true;
| ^~
vim +67 drivers/dma/mcf-edma-main.c
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 39
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 40 static irqreturn_t mcf_edma_err_handler(int irq, void *dev_id)
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 41 {
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 42 struct fsl_edma_engine *mcf_edma = dev_id;
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 43 struct edma_regs *regs = &mcf_edma->regs;
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 44 unsigned int err, ch;
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 45
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 46 err = ioread32(regs->errl);
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 47 if (!err)
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 48 return IRQ_NONE;
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 49
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 50 for (ch = 0; ch < (EDMA_CHANNELS / 2); ch++) {
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 51 if (err & BIT(ch)) {
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 52 fsl_edma_disable_request(&mcf_edma->chans[ch]);
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 53 iowrite8(EDMA_CERR_CERR(ch), regs->cerr);
79434f9b973616 drivers/dma/mcf-edma-main.c Frank Li 2023-08-21 54 fsl_edma_err_chan_handler(&mcf_edma->chans[ch]);
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 55 }
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 56 }
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 57
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 58 err = ioread32(regs->errh);
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 59 if (!err)
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 60 return IRQ_NONE;
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 61
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 62 for (ch = (EDMA_CHANNELS / 2); ch < EDMA_CHANNELS; ch++) {
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 63 if (err & (BIT(ch - (EDMA_CHANNELS / 2)))) {
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 64 fsl_edma_disable_request(&mcf_edma->chans[ch]);
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 65 iowrite8(EDMA_CERR_CERR(ch), regs->cerr);
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 66 mcf_edma->chans[ch].status = DMA_ERROR;
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 @67 mcf_edma->chans[ch].idle = true;
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 68 }
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 69 }
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 70
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 71 return IRQ_HANDLED;
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 72 }
e7a3ff92eaf19e drivers/dma/mcf-edma.c Angelo Dureghello 2018-08-19 73
diff --git a/drivers/dma/fsl-edma-common.c b/drivers/dma/fsl-edma-common.c index 91a4c11b7cbfd..e31dcc127708d 100644 --- a/drivers/dma/fsl-edma-common.c +++ b/drivers/dma/fsl-edma-common.c @@ -59,7 +59,6 @@ void fsl_edma_tx_chan_handler(struct fsl_edma_chan *fsl_chan) vchan_cookie_complete(&fsl_chan->edesc->vdesc); fsl_chan->edesc = NULL; fsl_chan->status = DMA_COMPLETE; - fsl_chan->idle = true; } else { vchan_cyclic_callback(&fsl_chan->edesc->vdesc); } @@ -239,7 +238,7 @@ int fsl_edma_terminate_all(struct dma_chan *chan) spin_lock_irqsave(&fsl_chan->vchan.lock, flags); fsl_edma_disable_request(fsl_chan); fsl_chan->edesc = NULL; - fsl_chan->idle = true; + fsl_chan->status = DMA_COMPLETE; vchan_get_all_descriptors(&fsl_chan->vchan, &head); spin_unlock_irqrestore(&fsl_chan->vchan.lock, flags); vchan_dma_desc_free_list(&fsl_chan->vchan, &head); @@ -259,7 +258,6 @@ int fsl_edma_pause(struct dma_chan *chan) if (fsl_chan->edesc) { fsl_edma_disable_request(fsl_chan); fsl_chan->status = DMA_PAUSED; - fsl_chan->idle = true; } spin_unlock_irqrestore(&fsl_chan->vchan.lock, flags); return 0; @@ -274,7 +272,6 @@ int fsl_edma_resume(struct dma_chan *chan) if (fsl_chan->edesc) { fsl_edma_enable_request(fsl_chan); fsl_chan->status = DMA_IN_PROGRESS; - fsl_chan->idle = false; } spin_unlock_irqrestore(&fsl_chan->vchan.lock, flags); return 0; @@ -780,7 +777,6 @@ void fsl_edma_xfer_desc(struct fsl_edma_chan *fsl_chan) fsl_edma_set_tcd_regs(fsl_chan, fsl_chan->edesc->tcd[0].vtcd); fsl_edma_enable_request(fsl_chan); fsl_chan->status = DMA_IN_PROGRESS; - fsl_chan->idle = false; } void fsl_edma_issue_pending(struct dma_chan *chan) diff --git a/drivers/dma/fsl-edma-common.h b/drivers/dma/fsl-edma-common.h index c5a766da02b88..b846cfe0a7fc6 100644 --- a/drivers/dma/fsl-edma-common.h +++ b/drivers/dma/fsl-edma-common.h @@ -150,7 +150,6 @@ struct fsl_edma_chan { struct virt_dma_chan vchan; enum dma_status status; enum fsl_edma_pm_state pm_state; - bool idle; struct fsl_edma_engine *edma; struct fsl_edma_desc *edesc; struct dma_slave_config cfg; @@ -456,7 +455,6 @@ static inline struct fsl_edma_desc *to_fsl_edma_desc(struct virt_dma_desc *vd) static inline void fsl_edma_err_chan_handler(struct fsl_edma_chan *fsl_chan) { fsl_chan->status = DMA_ERROR; - fsl_chan->idle = true; } void fsl_edma_tx_chan_handler(struct fsl_edma_chan *fsl_chan); diff --git a/drivers/dma/fsl-edma-main.c b/drivers/dma/fsl-edma-main.c index 82ac56be2d832..af05166ed251f 100644 --- a/drivers/dma/fsl-edma-main.c +++ b/drivers/dma/fsl-edma-main.c @@ -544,7 +544,6 @@ static int fsl_edma_probe(struct platform_device *pdev) fsl_chan->edma = fsl_edma; fsl_chan->pm_state = RUNNING; fsl_chan->srcid = 0; - fsl_chan->idle = true; fsl_chan->dma_dir = DMA_NONE; fsl_chan->vchan.desc_free = fsl_edma_free_desc; @@ -669,7 +668,7 @@ static int fsl_edma_suspend_late(struct device *dev) continue; spin_lock_irqsave(&fsl_chan->vchan.lock, flags); /* Make sure chan is idle or will force disable. */ - if (unlikely(!fsl_chan->idle)) { + if (unlikely(fsl_chan->status == DMA_IN_PROGRESS)) { dev_warn(dev, "WARN: There is non-idle channel."); fsl_edma_disable_request(fsl_chan); fsl_edma_chan_mux(fsl_chan, 0, false);
The 'idle' in fsl_chan is redundant as it's equivalent to 'status != DMA_IN_PROGRESS'. So remote it to simple code logic. Signed-off-by: Frank Li <Frank.Li@nxp.com> --- drivers/dma/fsl-edma-common.c | 6 +----- drivers/dma/fsl-edma-common.h | 2 -- drivers/dma/fsl-edma-main.c | 3 +-- 3 files changed, 2 insertions(+), 9 deletions(-)