From: Palmer Dabbelt <palmer@xxxxxxxxxxxx> I missed the int->size_t refactoring in f32fcbedbe92 ("tty: hvc: convert to u8 and size_t"), which causes the newly used ops in 88ead68e764c ("tty: Add SBI debug console support to HVC SBI driver") to fail to build due to a linux/drivers/tty/hvc/hvc_riscv_sbi.c:59:15: error: incompatible function pointer types initializing 'ssize_t (*)(uint32_t, const u8 *, size_t)' (aka 'long (*)(unsigned int, const unsigned char *, unsigned long)') with an expression of type 'int (uint32_t, const char *, int)' (aka 'int (unsigned int, const char *, int)') [-Wincompatible-function-pointer-types] .put_chars = hvc_sbi_dbcn_tty_put, Fixes: f32fcbedbe92 ("tty: hvc: convert to u8 and size_t") Fixes: 88ead68e764c ("tty: Add SBI debug console support to HVC SBI driver") Link: https://lore.kernel.org/r/20240119215612.20529-2-palmer@xxxxxxxxxxxx Signed-off-by: Palmer Dabbelt <palmer@xxxxxxxxxxxx> --- Changes since v1 <20240119215612.20529-2-palmer@xxxxxxxxxxxx>: * Fix the return and arguments correctly. * Also fix the hvc_sbi_dbcn_tty_{get,put}(). --- drivers/tty/hvc/hvc_riscv_sbi.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/tty/hvc/hvc_riscv_sbi.c b/drivers/tty/hvc/hvc_riscv_sbi.c index 2f3571f17ecd..f8cd3310ef35 100644 --- a/drivers/tty/hvc/hvc_riscv_sbi.c +++ b/drivers/tty/hvc/hvc_riscv_sbi.c @@ -15,7 +15,7 @@ #include "hvc_console.h" -static int hvc_sbi_tty_put(uint32_t vtermno, const char *buf, int count) +static ssize_t hvc_sbi_tty_put(uint32_t vtermno, const u8 *buf, size_t count) { int i; @@ -25,7 +25,7 @@ static int hvc_sbi_tty_put(uint32_t vtermno, const char *buf, int count) return i; } -static int hvc_sbi_tty_get(uint32_t vtermno, char *buf, int count) +static ssize_t hvc_sbi_tty_get(uint32_t vtermno, u8 *buf, size_t count) { int i, c; @@ -44,12 +44,12 @@ static const struct hv_ops hvc_sbi_v01_ops = { .put_chars = hvc_sbi_tty_put, }; -static int hvc_sbi_dbcn_tty_put(uint32_t vtermno, const char *buf, int count) +static ssize_t hvc_sbi_dbcn_tty_put(uint32_t vtermno, const u8 *buf, size_t count) { return sbi_debug_console_write(buf, count); } -static int hvc_sbi_dbcn_tty_get(uint32_t vtermno, char *buf, int count) +static ssize_t hvc_sbi_dbcn_tty_get(uint32_t vtermno, u8 *buf, size_t count) { return sbi_debug_console_read(buf, count); } -- 2.43.0