Messages in this thread Patch in this message | | | From | "Jiri Slaby (SUSE)" <> | Subject | [PATCH] tty: gdm724x: use min_t() for size_t varable and a constant | Date | Wed, 16 Aug 2023 10:53:22 +0200 |
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My thinking was that ulong is the same as size_t everywhere. No, size_t is uint on 32bit. So the below commit introduced a build warning on 32bit: .../gdm724x/gdm_tty.c:165:24: warning: comparison of distinct pointer types ('typeof (2048UL) *' (aka 'unsigned long *') and 'typeof (remain) *' (aka 'unsigned int *'))
To fix this, partially revert the commit (remove constants' suffixes) and switch to min_t() in this case instead.
/me would hope for Z (or alike) suffix for constants.
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org> Fixes: c3e5c706aefc (tty: gdm724x: convert counts to size_t) Reported-by: Nathan Chancellor <nathan@kernel.org> Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202308151953.rNNnAR2N-lkp@intel.com/ --- drivers/staging/gdm724x/gdm_tty.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/staging/gdm724x/gdm_tty.c b/drivers/staging/gdm724x/gdm_tty.c index 67d9bf41e836..32b2e817ff04 100644 --- a/drivers/staging/gdm724x/gdm_tty.c +++ b/drivers/staging/gdm724x/gdm_tty.c @@ -17,9 +17,9 @@ #define GDM_TTY_MAJOR 0 #define GDM_TTY_MINOR 32 -#define WRITE_SIZE 2048UL +#define WRITE_SIZE 2048 -#define MUX_TX_MAX_SIZE 2048UL +#define MUX_TX_MAX_SIZE 2048 static inline bool gdm_tty_ready(struct gdm *gdm) { @@ -159,7 +159,7 @@ static ssize_t gdm_tty_write(struct tty_struct *tty, const u8 *buf, size_t len) return -ENODEV; while (remain) { - size_t sending_len = min(MUX_TX_MAX_SIZE, remain); + size_t sending_len = min_t(size_t, MUX_TX_MAX_SIZE, remain); gdm->tty_dev->send_func(gdm->tty_dev->priv_dev, (void *)(buf + sent_len), sending_len, -- 2.41.0
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