staging: gpib: mite: remove unused global functions

The mite.c file was originally copied from the COMEDI code, and now that
it is in the kernel tree, along with the comedi code, on some build
configurations there are errors due to duplicate symbols (specifically
mite_dma_disarm).

Remove all of the unused functions in the gpib mite.c and .h files as
they aren't needed and cause the compiler to be confused.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/r/202501081239.BAPhfAHJ-lkp@intel.com/
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Link: https://lore.kernel.org/r/2025010809-padding-survive-91b3@gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/gpib/tnt4882/mite.c b/drivers/staging/gpib/tnt4882/mite.c
index 0edf34d243e9e897806bfc2b575b14dc98dda97d..4bd352967616fad23505c386f44e62253a0b5d4d 100644 (file)
--- a/drivers/staging/gpib/tnt4882/mite.c
+++ b/drivers/staging/gpib/tnt4882/mite.c
@@ -148,72 +148,3 @@ void mite_list_devices(void)
        }
        pr_info("\n");
 }
-
-int mite_bytes_transferred(struct mite_struct *mite, int chan)
-{
-       int dar, fcr;
-
-       dar = readl(mite->mite_io_addr + MITE_DAR + CHAN_OFFSET(chan));
-       fcr = readl(mite->mite_io_addr + MITE_FCR + CHAN_OFFSET(chan)) & 0x000000FF;
-       return dar - fcr;
-}
-
-int mite_dma_tcr(struct mite_struct *mite)
-{
-       int tcr;
-       int lkar;
-
-       lkar = readl(mite->mite_io_addr + CHAN_OFFSET(0) + MITE_LKAR);
-       tcr = readl(mite->mite_io_addr + CHAN_OFFSET(0) + MITE_TCR);
-       MDPRINTK("lkar=0x%08x tcr=%d\n", lkar, tcr);
-
-       return tcr;
-}
-
-void mite_dma_disarm(struct mite_struct *mite)
-{
-       int chor;
-
-       /* disarm */
-       chor = CHOR_ABORT;
-       writel(chor, mite->mite_io_addr + CHAN_OFFSET(0) + MITE_CHOR);
-}
-
-void mite_dump_regs(struct mite_struct *mite)
-{
-       void *addr = 0;
-       unsigned long temp = 0;
-
-       pr_info("mite address is  =0x%p\n", mite->mite_io_addr);
-
-       addr = mite->mite_io_addr + MITE_CHOR + CHAN_OFFSET(0);
-       pr_info("mite status[CHOR]at 0x%p =0x%08lx\n", addr, temp = readl(addr));
-       //mite_decode(mite_CHOR_strings,temp);
-       addr = mite->mite_io_addr + MITE_CHCR + CHAN_OFFSET(0);
-       pr_info("mite status[CHCR]at 0x%p =0x%08lx\n", addr, temp = readl(addr));
-       //mite_decode(mite_CHCR_strings,temp);
-       addr = mite->mite_io_addr + MITE_TCR + CHAN_OFFSET(0);
-       pr_info("mite status[TCR] at 0x%p =0x%08x\n", addr, readl(addr));
-       addr = mite->mite_io_addr + MITE_MCR + CHAN_OFFSET(0);
-       pr_info("mite status[MCR] at 0x%p =0x%08lx\n", addr, temp = readl(addr));
-       //mite_decode(mite_MCR_strings,temp);
-       addr = mite->mite_io_addr + MITE_MAR + CHAN_OFFSET(0);
-       pr_info("mite status[MAR] at 0x%p =0x%08x\n", addr, readl(addr));
-       addr = mite->mite_io_addr + MITE_DCR + CHAN_OFFSET(0);
-       pr_info("mite status[DCR] at 0x%p =0x%08lx\n", addr, temp = readl(addr));
-       //mite_decode(mite_CR_strings,temp);
-       addr = mite->mite_io_addr + MITE_DAR + CHAN_OFFSET(0);
-       pr_info("mite status[DAR] at 0x%p =0x%08x\n", addr, readl(addr));
-       addr = mite->mite_io_addr + MITE_LKCR + CHAN_OFFSET(0);
-       pr_info("mite status[LKCR]at 0x%p =0x%08lx\n", addr, temp = readl(addr));
-       //mite_decode(mite_CR_strings,temp);
-       addr = mite->mite_io_addr + MITE_LKAR + CHAN_OFFSET(0);
-       pr_info("mite status[LKAR]at 0x%p =0x%08x\n", addr, readl(addr));
-
-       addr = mite->mite_io_addr + MITE_CHSR + CHAN_OFFSET(0);
-       pr_info("mite status[CHSR]at 0x%p =0x%08lx\n", addr, temp = readl(addr));
-       //mite_decode(mite_CHSR_strings,temp);
-       addr = mite->mite_io_addr + MITE_FCR + CHAN_OFFSET(0);
-       pr_info("mite status[FCR] at 0x%p =0x%08x\n\n", addr, readl(addr));
-}
-

diff --git a/drivers/staging/gpib/tnt4882/mite.h b/drivers/staging/gpib/tnt4882/mite.h
index 7a475279b2fb3e1ab96baffc01613ff4f17984c8..edb873435b511f315adbf2e3b6e06c5e95917888 100644 (file)
--- a/drivers/staging/gpib/tnt4882/mite.h
+++ b/drivers/staging/gpib/tnt4882/mite.h
@@ -61,15 +61,6 @@ int mite_setup(struct mite_struct *mite);
 void mite_unsetup(struct mite_struct *mite);
 void mite_list_devices(void);
 
-int mite_dma_tcr(struct mite_struct *mite);
-
-void mite_dma_arm(struct mite_struct *mite);
-void mite_dma_disarm(struct mite_struct *mite);
-
-void mite_dump_regs(struct mite_struct *mite);
-void mite_setregs(struct mite_struct *mite, unsigned long ll_start, int chan, int dir);
-int mite_bytes_transferred(struct mite_struct *mite, int chan);
-
 #define CHAN_OFFSET(x)                 (0x100 * (x))
 
 /* DMA base for chan 0 is 0x500, chan 1 is 0x600 */